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1.
An important objective of next-generation wireless networks is to provide quality of service (QoS) guarantees. This requires
a simple and efficient wireless channel model that can easily translate into connection-level QoS measures such as data rate,
delay and delay-violation probability. To achieve this, in Wu and Negi (IEEE Trans. on Wireless Communications 2(4) (2003)
630–643), we developed a link-layer channel model termed effective capacity, for the setting of a single hop, constant-bit-rate arrivals, fluid traffic, and wireless channels with negligible propagation
delay. In this paper, we apply the effective capacity technique to deriving QoS measures for more general situations, namely,
(1) networks with multiple wireless links, (2) variable-bit-rate sources, (3) packetized traffic, and (4) wireless channels
with non-negligible propagation delay.
Dapeng Wu received B.E. in Electrical Engineering from Huazhong University of Science and Technology, Wuhan, China, in 1990, M.E. in
Electrical Engineering from Beijing University of Posts and Telecommunications, Beijing, China, in 1997, and Ph.D. in Electrical
and Computer Engineering from Carnegie Mellon University, Pittsburgh, PA, in 2003. From July 1997 to December 1999, he conducted
graduate research at Polytechnic University, Brooklyn, New York. During the summers of 1998, 1999 and 2000, he conducted research
at Fujitsu Laboratories of America, Sunnyvale, California, on architectures and traffic management algorithms in the Internet
and wireless networks for multimedia applications.
Since August 2003, he has been with Electrical and Computer Engineering Department at University of Florida, Gainesville,
FL, as an Assistant Professor. His research interests are in the areas of networking, communications, multimedia, signal processing,
and information and network security. He received the IEEE Circuits and Systems for Video Technology (CSVT) Transactions Best
Paper Award for Year 2001.
Currently, he is an Associate Editor for the IEEE Transactions on Vehicular Technology and Associate Editor for International
Journal of Ad Hoc and Ubiquitous Computing. He served as Program Chair for IEEE/ACM First International Workshop on Broadband
Wireless Services and Applications (BroadWISE 2004); and as TPC member of over 20 conferences such as IEEE INFOCOM'05, IEEE
ICC'05, IEEE WCNC'05, and IEEE Globecom'04. He is Vice Chair of Mobile and wireless multimedia Interest Group (MobIG), Technical
Committee on Multimedia Communications, IEEE Communications Society. He is a member of the Award Committee, Technical Committee
on Multimedia Communications, IEEE Communications Society. He is also Director of Communications, IEEE Gainesville Section.
Rohit Negi received the B.Tech. degree in Electrical Engineering from the Indian Institute of Technology, Bombay, India in 1995. He
received the M.S. and Ph.D. degrees from Stanford University, CA, USA, in 1996 and 2000 respectively, both in Electrical Engineering.
He has received the President of India Gold medal in 1995.
Since 2000, he has been with the Electrical and Computer Engineering department at Carnegie Mellon University, Pittsburgh,
PA, USA, where he is an Assistant Professor. His research interests include signal processing, coding for communications systems,
information theory, networking, cross-layer optimization and sensor networks. 相似文献
2.
In this paper, we investigate the routing optimization problem in wireless mesh networks. While existing works usually assume
static and known traffic demand, we emphasize that the actual traffic is time-varying and difficult to measure. In light of
this, we alternatively pursue a stochastic optimization framework where the expected network utility is maximized. For multi-path
routing scenario, we propose a stochastic programming approach which requires no priori knowledge on the probabilistic distribution
of the traffic. For the single-path routing counterpart, we develop a learning-based algorithm which provably converges to
the global optimum solution asymptotically.
Yang Song received his B.E. and M.E. degrees in Electrical Engineering from Dalian University of Technology, Dalian, China, and University of Hawaii at Manoa, Honolulu, U.S.A., in July 2004 and August 2006, respectively. Since September 2006, he has been working towards the Ph.D. degree in the Department of Electrical and Computer Engineering at the University of Florida, Gainesville, Florida, USA. His research interests are wireless network, game theory, optimization and mechanism design. He is a student member of IEEE a member of Game Theory Society. Chi Zhang received the B.E. and M.E. degrees in Electrical Engineering from Huazhong University of Science and Technology, Wuhan, China, in July 1999 and January 2002, respectively. Since September 2004, he has been working towards the Ph.D. degree in the Department of Electrical and Computer Engineering at the University of Florida, Gainesville, Florida, USA. His research interests are network and distributed system security, wireless networking, and mobile computing, with emphasis on mobile ad hoc networks, wireless sensor networks, wireless mesh networks, and heterogeneous wired/wireless networks. Yuguang Fang received a Ph.D. degree in Systems Engineering from Case Western Reserve University in January 1994 and a Ph.D degree in Electrical Engineering from Boston University in May 1997. He was an assistant professor in the Department of Electrical and Computer Engineering at New Jersey Institute of Technology from July 1998 to May 2000. He then joined the Department of Electrical and Computer Engineering at University of Florida in May 2000 as an assistant professor, got an early promotion to an associate professor with tenure in August 2003 and to a full professor in August 2005. He holds a University of Florida Research Foundation (UFRF) Professorship from 2006 to 2009 and a Changjiang Scholar Chair Professorship with National Key Laboratory of Integrated Services Networks, Xidian University, China, from 2008 to 2011. He has published over 200 papers in refereed professional journals and conferences. He received the National Science Foundation Faculty Early Career Award in 2001 and the Office of Naval Research Young Investigator Award in 2002. He is the recipient of the Best Paper Award in IEEE International Conference on Network Protocols (ICNP) in 2006 and the recipient of the IEEE TCGN Best Paper Award in the IEEE High-Speed Networks Symposium, IEEE Globecom in 2002. Dr. Fang is also active in professional activities. He is a Fellow of IEEE and a member of ACM. He has served on several editorial boards of technical journals including IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Transactions on Mobile Computing and ACM Wireless Networks. He has been actively participating in professional conference organizations such as serving as the Steering Committee Co-Chair for QShine, the Technical Program Vice-Chair for IEEE INFOCOM’2005, Technical Program Symposium Co-Chair for IEEE Globecom’2004, and a member of Technical Program Committee for IEEE INFOCOM (1998, 2000, 2003–2009). 相似文献
Yuguang FangEmail: |
Yang Song received his B.E. and M.E. degrees in Electrical Engineering from Dalian University of Technology, Dalian, China, and University of Hawaii at Manoa, Honolulu, U.S.A., in July 2004 and August 2006, respectively. Since September 2006, he has been working towards the Ph.D. degree in the Department of Electrical and Computer Engineering at the University of Florida, Gainesville, Florida, USA. His research interests are wireless network, game theory, optimization and mechanism design. He is a student member of IEEE a member of Game Theory Society. Chi Zhang received the B.E. and M.E. degrees in Electrical Engineering from Huazhong University of Science and Technology, Wuhan, China, in July 1999 and January 2002, respectively. Since September 2004, he has been working towards the Ph.D. degree in the Department of Electrical and Computer Engineering at the University of Florida, Gainesville, Florida, USA. His research interests are network and distributed system security, wireless networking, and mobile computing, with emphasis on mobile ad hoc networks, wireless sensor networks, wireless mesh networks, and heterogeneous wired/wireless networks. Yuguang Fang received a Ph.D. degree in Systems Engineering from Case Western Reserve University in January 1994 and a Ph.D degree in Electrical Engineering from Boston University in May 1997. He was an assistant professor in the Department of Electrical and Computer Engineering at New Jersey Institute of Technology from July 1998 to May 2000. He then joined the Department of Electrical and Computer Engineering at University of Florida in May 2000 as an assistant professor, got an early promotion to an associate professor with tenure in August 2003 and to a full professor in August 2005. He holds a University of Florida Research Foundation (UFRF) Professorship from 2006 to 2009 and a Changjiang Scholar Chair Professorship with National Key Laboratory of Integrated Services Networks, Xidian University, China, from 2008 to 2011. He has published over 200 papers in refereed professional journals and conferences. He received the National Science Foundation Faculty Early Career Award in 2001 and the Office of Naval Research Young Investigator Award in 2002. He is the recipient of the Best Paper Award in IEEE International Conference on Network Protocols (ICNP) in 2006 and the recipient of the IEEE TCGN Best Paper Award in the IEEE High-Speed Networks Symposium, IEEE Globecom in 2002. Dr. Fang is also active in professional activities. He is a Fellow of IEEE and a member of ACM. He has served on several editorial boards of technical journals including IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Transactions on Mobile Computing and ACM Wireless Networks. He has been actively participating in professional conference organizations such as serving as the Steering Committee Co-Chair for QShine, the Technical Program Vice-Chair for IEEE INFOCOM’2005, Technical Program Symposium Co-Chair for IEEE Globecom’2004, and a member of Technical Program Committee for IEEE INFOCOM (1998, 2000, 2003–2009). 相似文献
3.
Over the past few years, wireless networking technologies have made vast forays into our daily lives. Today, one can find
802.11 hardware and other personal wireless technology employed at homes, shopping malls, coffee shops and airports. Present-day
wireless network deployments bear two important properties: they are unplanned, with most access points (APs) deployed by users in a spontaneous manner, resulting in highly variable AP densities; and
they are unmanaged, since manually configuring and managing a wireless network is very complicated. We refer to such wireless deployments as
being chaotic.
In this paper, we present a study of the impact of interference in chaotic 802.11 deployments on end-client performance. First,
using large-scale measurement data from several cities, we show that it is not uncommon to have tens of APs deployed in close
proximity of each other. Moreover, most APs are not configured to minimize interference with their neighbors. We then perform
trace-driven simulations to show that the performance of end-clients could suffer significantly in chaotic deployments. We
argue that end-client experience could be significantly improved by making chaotic wireless networks self-managing. We design and evaluate automated power control and rate adaptation algorithms to minimize interference among neighboring
APs, while ensuring robust end-client performance.
This work was supported by the Army Research Office under grant number DAAD19-02-1-0389, and by the NSF under grant numbers
ANI-0092678, CCR-0205266, and CNS-0434824, as well as by IBM and Intel.
Aditya Akella obtained his Ph.D. in Computer Science from Carnegie Mellon University in September 2005. He obtained a B.Tech in Computer
Science and Engineering from IIT Madras in May 2000. Currently, Dr. Akella is a post-doctoral associate at Stanford University.
He will join the Computer Sciences faculty at the University of Wisconsin-Madison in Fall 2006. Dr. Akella's research interests
include Internet Routing, Network Protocol Design, Internet Security, and Wireless Networking. His web page is at .
Glenn Judd, is a Computer Science Ph.D. candidate at Carnegie Mellon University. His research interests include wireless networking
and pervasive computing. He has an M.S. and B.S. in Computer Science from Brigham Young University.
Srinivasan Seshan is currently an Associate Professor and holds the Finmeccanica chair at Carnegie Mellon University’s Computer Science Department.
Dr. Seshan received his Ph.D. in 1995 from the Computer Science Department at University of California, Berkeley. From 1995
to 2000, Dr. Seshan was a research staff member at IBM’s T.J. Watson Research Center. Dr. Seshan’s primary interests are in
the broad areas of network protocols and distributed network applications. In the past, he has worked on topics such as transport/routing
protocols for wireless networks, fast protocol stack implementations, RAID system design, performance prediction for Internet
transfers, Web server benchmarking, new approaches to congestion control, firewall design and improvements to the TCP protocol.
His current work explores new approaches in overlay networking, sensor networking, online multiplayer games and wide-area
Internet routing. His web page is at .
Peter Steenkiste is a Professor of Computer Science and of Electrical and Computer Engineering at Carnegie Mellon University. His research
interests include networking, distributed systems, and pervasive computing. He received an M.S. and Ph.D. in Electrical Engineering
from Stanford University and an Engineering degree from the University of Gent, Belgium. You can learn more about his research
from his home page . 相似文献
4.
To efficiently support quality of service (QoS) in future wireless networks, it is important to model a wireless channel in
terms of connection-level QoS metrics such as data rate, delay and delay-violation probability. To achieve this, in [7], we
proposed and developed a link-layer channel model termed effective capacity (EC) for flat fading channels. In this paper, we apply the effective capacity technique to modeling frequency selective fading
channels. Specifically, we utilize the duality between the distribution of a queue with superposition of N i.i.d. sources, and the distribution of a queue with a frequency-selective fading channel that consists of N i.i.d. sub-channels, to model a frequency selective fading channel. In the proposed model, a frequency selective fading channel
is modeled by three EC functions; we also propose a simple and efficient algorithm to estimate these EC functions. Simulation
results show that the actual QoS metric is closely approximated by the QoS metric predicted by the proposed EC channel model.
The accuracy of the prediction using our model can translate into efficiency in admission control and resource reservation.
Dapeng Wu received B.E. in Electrical Engineering from Huazhong University of Science and Technology, Wuhan, China, in 1990, M.E. in
Electrical Engineering from Beijing University of Posts and Telecommunications, Beijing, China, in 1997, and Ph.D. in Electrical
and Computer Engineering from Carnegie Mellon University, Pittsburgh, PA, in 2003. From July 1997 to December 1999, he conducted
graduate research at Polytechnic University, Brooklyn, New York. During the summers of 1998, 1999 and 2000, he conducted research
at Fujitsu Laboratories of America, Sunnyvale, California, on architectures and traffic management algorithms in the Internet
and wireless networks for multimedia applications.
Since August 2003, he has been with Electrical and Computer Engineering Department at University of Florida, Gainesville,
FL, as an Assistant Professor. His research interests are in the areas of networking, communications, multimedia, signal processing,
and information and network security. He received the IEEE Circuits and Systems for Video Technology (CSVT) Transactions Best
Paper Award for Year 2001.
Currently, he is an Associate Editor for the IEEE Transactions on Vehicular Technology and Associate Editor for International
Journal of Ad Hoc and Ubiquitous Computing. He served as Program Chair for IEEE/ACM First International Workshop on Broadband
Wireless Services and Applications (BroadWISE 2004); and as TPC member of over 30 conferences. He is Vice Chair of Mobile
and wireless multimedia Interest Group (MobIG), Technical Committee on Multimedia Communications, IEEE Communications Society.
He is a member of the Best Paper Award Committee, Technical Committee on Multimedia Communications, IEEE Communications Society.
He is also Director of Communications, IEEE Gainesville Section.
Rohit Negi received the B.Tech. degree in Electrical Engineering from the Indian Institute of Technology, Bombay, India in 1995. He
received the M.S. and Ph.D. degrees from Stanford University, CA, USA, in 1996 and 2000 respectively, both in Electrical Engineering.
He has received the President of India Gold medal in 1995.
Since 2000, he has been with the Electrical and Computer Engineering department at Carnegie Mellon University, Pittsburgh,
PA, USA, where he is an Associate Professor. His research interests include signal processing, coding for communications systems,
information theory, networking, cross-layer optimization and sensor networks. 相似文献
5.
This paper studies packet transmission scheduling for real-time constant-bit-rate (CBR) traffic in IEEE 802.16-based wireless
mesh networks. We first formulate and solve the scheduling problem as a binary linear programming problem. The computational
complexity of the optimum scheduling solution may prevent it from being implemented in practice. We then propose a heuristic
scheme, namely bottleneck first scheduling scheme, where scheduling decisions at stations (base station or subscriber stations)
with higher traffic loads are done before those at stations with lower traffic loads. At each station, scheduling decisions
for CBR packets with more hops to their destinations are done first. Numerical results show that the proposed scheduling scheme
achieves the same capacity as the optimal one while obtaining satisfactory delay performance.
Dongmei Zhao received the Ph.D. degree in Electrical and Computer Engineering from the University of Waterloo, Waterloo, Ontario, Canada
in June 2002. Since July 2002 she has been with the Department of Electrical and Computer Engineering, McMaster University,
Hamilton, Ontario, Canada where she is an assistant professor. Dr. Zhao’s research interests include modeling and performance
analysis, quality-of-service provisioning, access control and admission control in wireless networks. Dr. Zhao is a member
of the IEEE and a registered Professional Engineer of Ontario.
Jun Zou received the B.S. and M. Eng. Degrees from Tianjin University, China in 1999 and 2002, respectively. He worked at Siemens
Communication Networks Ltd., Beijing from 2002 to 2004. Currently, he is a Ph.D. student at McMaster University, Canada. His
research interests include wireless networking, routing protocols, architecture of next generation networks, network security
and their applications in telecommunication industry. 相似文献
6.
Energy aware efficient geographic routing in lossy wireless sensor networks with environmental energy supply 总被引:2,自引:0,他引:2
Wireless sensor networks are characterized by multihop wireless lossy links and resource constrained nodes. Energy efficiency
is a major concern in such networks. In this paper, we study Geographic Routing with Environmental Energy Supply (GREES) and
propose two protocols, GREES-L and GREES-M, which combine geographic routing and energy efficient routing techniques and take
into account the realistic lossy wireless channel condition and the renewal capability of environmental energy supply when
making routing decisions. Simulation results show that GREESs are more energy efficient than the corresponding residual energy
based protocols and geographic routing protocols without energy awareness. GREESs can maintain higher mean residual energy
on nodes, and achieve better load balancing in terms of having smaller standard deviation of residual energy on nodes. Both
GREES-L and GREES-M exhibit graceful degradation on end-to-end delay, but do not compromise the end-to-end throughput performance.
Kai Zeng received his B.E. degree in Communication Engineering and M.E. degree in Communication and Information System both from Huazhong
University of Science and Technology, China, in 2001 and 2004, respectively. He is currently a Ph.D. student in the Electrical
and Computer Engineering department at Worcester Polytechnic Institute. His research interests are in the areas of wireless
ad hoc and sensor networks with emphases on energy-efficient protocol, cross-layer design, routing, and network security.
Kui Ren received his B. Eng. and M. Eng. both from Zhejiang University, China, in 1998 and 2001, respectively. He worked as a research
assistant at Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences from March 2001 to
January 2003, at Institute for Infocomm Research, Singapore from January 2003 to August 2003, and at Information and Communications
University, South Korea from September 2003 to June 2004. Currently he is a PhD candidate in the ECE department at Worcester
Polytechnic Institute. His research interests include ad hoc/sensor network security, wireless mesh network security, Internet
security, and security and privacy in ubiquitous computing environments.
Wenjing Lou is an assistant professor in the Electrical and Computer Engineering department at Worcester Polytechnic Institute. She obtained
her Ph.D. degree in Electrical and Computer Engineering from University of Florida in 2003. She received the M.A.Sc. degree
from Nanyang Technological University, Singapore, in 1998, the M.E. degree and the B.E. degree in Computer Science and Engineering
from Xi’an Jiaotong University, China, in 1996 and 1993 respectively. From December 1997 to July 1999, she worked as a Research
Engineer in Network Technology Research Center, Nanyang Technological University. Her current research interests are in the
areas of ad hoc and sensor networks, with emphases on network and system security and routing.
Patrick J. Moran received his MSEE from Carnegie Mellon University, 1993. He is currently the CTO and Founder of AirSprite Technologies Inc,
and is driving the company to utilize advanced networking protocols for low-power wireless network systems. His interests
include architecture, protocols and high performance implementation of emerging communication technologies. Patrick has been
involved in deployment of communication and signal processing technologies since graduating from the University of Minn. in
1986. He holds several patents and publications relating to storage, medical and data processing information systems. He is
a member of the IEEE. 相似文献
7.
Directional Controlled Fusion in Wireless Sensor Networks 总被引:3,自引:2,他引:1
Though data redundancy can be eliminated at aggregation point to reduce the amount of sensory data transmission, it introduces
new challenges due to multiple flows competing for the limited bandwidth in the vicinity of the aggregation point. On the
other hand, waiting for multiple flows to arrive at a centralized node for aggregation not only uses precious memory to store
these flows but also increases the delays of sensory data delivery. While traditional aggregation schemes can be characterized
as “multipath converging,” this paper proposes the notation of “multipath expanding” to solve the above problems by jointly
considering data fusion and load balancing. We propose a novel directional-controlled fusion (DCF) scheme, consisting of two
key algorithms termed as directional control and multipath fusion. By adjusting a key parameter named multipath fusion factor
in DCF, the trade-offs between multipath-converging and multipath-expanding can be easily achieved, in order to satisfy specific
QoS requirements from various applications. We present simulations that verify the effectiveness of the proposed scheme.
Min Chen received the Ph.D degree in Electrical Engineering from South China University of Technology in 2004, when he was 23 years old. Since Mar. 2006, he is Post-Doctoral Fellow in Department of Electrical and Computer Engineering at University of British Columbia. Before joining UBC, he has been a Post-Doctoral Fellow in School of Computer Science and Engineering at Seoul National University for one and half years. Dr. Chen’s research interests include algorithmic, optimization and performance issues in wireless ad hoc and sensor networks and multimedia communications over wireless networks. He was interviewed by Chinese Canadian Times where he appeared on the celebrity column in 2007. He is the author of a textbook OPNET Network Simulation (Tsinghua Univ. Press, 2004). Dr. Chen received the Best Paper Runner-up Award from The Fifth International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QShine) 2008. Victor C.M. Leung received the B.A.Sc. (Hons.) and PhD degrees, both in electrical engineering, from the University of British Columbia (UBC) in 1977 and 1981, respectively. He was the recipient of many academic awards, including the APEBC Gold Medal as the head of the 1977 graduate class in the Faculty of Applied Science, UBC, and the NSERC Postgraduate Scholarship. From 1981 to 1987, Dr. Leung was a Senior Member of Technical Staff and satellite systems specialist at MPR Teltech Ltd. In 1988, he was a Lecturer in Electronics at the Chinese University of Hong Kong. He returned to U.B.C. as a faculty member in 1989, where he is a Professor and holder of the TELUS Mobility Research Chair in Advanced Telecommunications Engineering in the Department of Electrical and Computer Engineering. His research interests are in mobile systems and wireless networks. Dr. Leung is a Fellow of IEEE and a voting member of ACM. He is an editor of the IEEE Transactions on Wireless Communications, an associate editor of the IEEE Transactions on Vehicular Technology, and an editor of the International Journal of Sensor Networks. Shiwen Mao received the Ph.D. degree in Electrical and Computer Engineering (ECE) from Polytechnic University, Brooklyn, NY in 2004. He was a Research Scientist at Virginia Tech, Blacksburg, VA from December 2003 to April 2006. Currently, he is an Assistant Professor in ECE at Auburn University, Auburn, AL. Dr. Mao’s research interests include modeling and optimization of wireless networks, cognitive networks, and multimedia communications. He is on the Editorial Board of the Hindawi Advances in Multimedia Journal and the Wiley International Journal of Communication Systems. Dr. Mao received the 2004 IEEE Communications Society Leonard G. Abraham Prize in the Field of Communications Systems and the Best Paper Runner-up Award from The Fifth International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QShine) 2008. He is the co-author of a textbook TCP/IP Essentials: A Lab-Based Approach (Cambridge Univ. Press, 2004). 相似文献
Min ChenEmail: |
Min Chen received the Ph.D degree in Electrical Engineering from South China University of Technology in 2004, when he was 23 years old. Since Mar. 2006, he is Post-Doctoral Fellow in Department of Electrical and Computer Engineering at University of British Columbia. Before joining UBC, he has been a Post-Doctoral Fellow in School of Computer Science and Engineering at Seoul National University for one and half years. Dr. Chen’s research interests include algorithmic, optimization and performance issues in wireless ad hoc and sensor networks and multimedia communications over wireless networks. He was interviewed by Chinese Canadian Times where he appeared on the celebrity column in 2007. He is the author of a textbook OPNET Network Simulation (Tsinghua Univ. Press, 2004). Dr. Chen received the Best Paper Runner-up Award from The Fifth International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QShine) 2008. Victor C.M. Leung received the B.A.Sc. (Hons.) and PhD degrees, both in electrical engineering, from the University of British Columbia (UBC) in 1977 and 1981, respectively. He was the recipient of many academic awards, including the APEBC Gold Medal as the head of the 1977 graduate class in the Faculty of Applied Science, UBC, and the NSERC Postgraduate Scholarship. From 1981 to 1987, Dr. Leung was a Senior Member of Technical Staff and satellite systems specialist at MPR Teltech Ltd. In 1988, he was a Lecturer in Electronics at the Chinese University of Hong Kong. He returned to U.B.C. as a faculty member in 1989, where he is a Professor and holder of the TELUS Mobility Research Chair in Advanced Telecommunications Engineering in the Department of Electrical and Computer Engineering. His research interests are in mobile systems and wireless networks. Dr. Leung is a Fellow of IEEE and a voting member of ACM. He is an editor of the IEEE Transactions on Wireless Communications, an associate editor of the IEEE Transactions on Vehicular Technology, and an editor of the International Journal of Sensor Networks. Shiwen Mao received the Ph.D. degree in Electrical and Computer Engineering (ECE) from Polytechnic University, Brooklyn, NY in 2004. He was a Research Scientist at Virginia Tech, Blacksburg, VA from December 2003 to April 2006. Currently, he is an Assistant Professor in ECE at Auburn University, Auburn, AL. Dr. Mao’s research interests include modeling and optimization of wireless networks, cognitive networks, and multimedia communications. He is on the Editorial Board of the Hindawi Advances in Multimedia Journal and the Wiley International Journal of Communication Systems. Dr. Mao received the 2004 IEEE Communications Society Leonard G. Abraham Prize in the Field of Communications Systems and the Best Paper Runner-up Award from The Fifth International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QShine) 2008. He is the co-author of a textbook TCP/IP Essentials: A Lab-Based Approach (Cambridge Univ. Press, 2004). 相似文献
8.
Exploiting Mobility for Energy Efficient Data Collection in Wireless Sensor Networks 总被引:3,自引:1,他引:2
Sushant Jain Rahul C. Shah Waylon Brunette Gaetano Borriello Sumit Roy 《Mobile Networks and Applications》2006,11(3):327-339
We analyze an architecture based on mobility to address the problem of energy efficient data collection in a sensor network.
Our approach exploits mobile nodes present in the sensor field as forwarding agents. As a mobile node moves in close proximity
to sensors, data is transferred to the mobile node for later depositing at the destination. We present an analytical model
to understand the key performance metrics such as data transfer, latency to the destination, and power. Parameters for our
model include: sensor buffer size, data generation rate, radio characteristics, and mobility patterns of mobile nodes. Through
simulation we verify our model and show that our approach can provide substantial savings in energy as compared to the traditional
ad-hoc network approach.
Sushant Jain is a Ph.D. candidate in the Department of Computer Science and Engineering at the University of Washington. His research
interests are in design and analysis of routing algorithms for networking systems. He received a MS in Computer Science from
the University of Washington in 2001 and a B.Tech degree in Computer Science from IIT Delhi in 1999.
Rahul C. Shah completed the B. Tech (Hons) degree from the Indian Institute of Technology, Kharagpur in 1999 majoring in Electronics and
Electrical Communication Engineering. He is currently pursuing his Ph.D. in Electrical Engineering at the University of California,
Berkeley. His research interests are in energy-efficient protocol design for wireless sensor/ad hoc networks, design methodology
for protocols and next generation cellular networks.
Waylon Brunette is a Research Engineer in the Department of Computer Science and Engineering at the University of Washington. His research
interests include mobile and ubiquitous computing, wireless sensor networks, and personal area networks. Currently, he is
engaged in collaborative work with Intel Research Seattle to develop new uses for embedded devices and RFID technologies in
ubiquitous computing. He received a BS in Computer Engineering from the University of Washington in 2002.
Gaetano Borriello is a Professor in the Department of Computer Science and Engineering at the University of Washington. His research interests
are in embedded and ubiquitous computing, principally new hardware devices that integrate seamlessly into the user’s environment
with particular focus on location and identification systems. His principal projects are in creating manageable RFID systems
that are sensitive to user privacy concerns and in context-awareness through sensors distributed in the environment as well
as carried by users.
Sumit Roy received the B. Tech. degree from the Indian Institute of Technology (Kanpur) in 1983, and the M. S. and Ph. D. degrees from
the University of California (Santa Barbara), all in Electrical Engineering in 1985 and 1988 respectively, as well as an M.
A. in Statistics and Applied Probability in 1988. His previous academic appointments were at the Moore School of Electrical
Engineering, University of Pennsylvania, and at the University of Texas, San Antonio. He is presently Prof, of Electrical
Engineering, Univ. of Washington where his research interests center around analysis/design of communication systems/networks,
with a topical emphasis on next generation mobile/wireless networks. He is currently on academic leave at Intel Wireless Technology
Lab working on high speed UWB radios and next generation Wireless LANs. His activities for the IEEE Communications Society
includes membership of several technical committees and TPC for conferences, and he serves as an Editor for the IEEE Transactions
on Wireless Communications. 相似文献
9.
We develop scheduling strategies for carrying multimedia traffic over a polled multiple access wireless network with fading.
We consider a slotted system with three classes of traffic (voice, streaming media and file transfers). A Markov model is
used for the fading and also for modeling voice packet arrivals and streaming arrivals. The performance objectives are a loss
probability for voice, mean network delay for streaming media, and time average throughput for file transfers. A central scheduler
(e.g., the access point in a single cell IEEE 802.11 wireless local area network (WLAN)) is assumed to be able to keep track
of all the available state information and make the scheduling decision in each slot (e.g., as would be the case for PCF mode
operation of the IEEE 802.11 WLAN). The problem is modeled as a constrained Markov decision problem. By using constraint relaxations
(a linear relaxation and Whittle type relaxations) an index based policy is obtained. For the file transfers the decision
problem turns out to be one with partial state information. Numerical comparisons are provided with the performance obtained
from some simple policies.
This work was supported by a research grant from Intel Technology India Pvt. Ltd.
Munish Goyal obtained his Masters and PhD degree in telecommunications from the Indian Institute of Science, Bangalore, India and the
B.E. degree in Electronics and Communication from the Indian Institute of Technology, Roorkee, India. Currently, he is a postdoctoral
research fellow at the ARC Center of Excellence for Mathematics and Statistics of Complex Systems, University of Melbourne,
Australia. His research interests include modelling, analysis and control problems arising in stochastic systems especially
telecommunication systems.
Anurag Kumar obtained his B.Tech. degree from the Indian Institute of Technology at Kanpur, and the PhD degree from Cornell University,
both in Electrical Engineering. He was then with Bell Laboratories, Holmdel, N.J., for over 6 years. Since 1988 he has been
with the Indian Institute of Science (IISc), Bangalore, in the Dept. of Electrical Communication Engineering, where he is
now a Professor, and is also the Chairman of the department. From 1988 to 2003 he was the Coordinator at IISc of the Education
and Research Network Project (ERNET), India’s first wide-area packet switching network. His area of research is communication
networking, specifically, modeling, analysis, control and optimisation problems arising in communication networks and distributed
systems. Recently his research has focused primarily on wireless networking. He has been elected Fellow of the IEEE, and the
Indian National Science Academy (INSA), both from 2006, and has been a Fellow of the Indian National Academy of Engineering
(INAE) since 1998. He is an associate editor of IEEE Transactions on Networking, and of IEEE Communications Surveys and Tutorials.
He is a coauthor of the advanced text-book “Communication Networking: An Analytical Approach,” by Kumar, Majunath and Kuri,
published by Morgan-Kaufman/Elsevier.
Vinod Sharma received his B.Tech in Electrical Engineering from Indian Institute of Technology, New Delhi in 1978 and PhD in Electrical
and Computer Engineering from Carnegie Mellon University in 1984. He worked in Northeastern University and University of California
at Los Angeles before joining Indian Instutute of Science in 1988 where currently he is a Professor. He has held visiting
positions at INRS Montreal, Helsinki University of Technology, Tokyo University of Science, Institute Mittag-Leffler and INRIA,
Sophia Antipolis.
His current interests are in Communication Networks, Wireless Communications and Queueing Theory. 相似文献
10.
The capacity of wireless ad hoc networks is constrained by the interference caused by the neighboring nodes. Gupta and Kumar
have shown that the throughput for such networks is only Θ
bits per second per node in a unit area domain when omnidirectional antennas are used [1]. In this paper we investigate the
capacity of ad hoc wireless networks using directional antennas. Using directional antennas reduces the interference area
caused by each node, thus increases the capacity of the network. We will give an expression for the capacity gain and we argue
that in the limit, when the beam-width goes to zero the wireless network behaves like the wired network. In our analysis we
consider both arbitrary networks and random networks where nodes are assumed to be static. We have also analyzed hybrid beamform
patterns that are a mix of omnidirectional/directional and a better model of real directional antennas. Simulations are conducted
for validation of our analytical results.
Su Yi received the B.S. and M.S degrees in automation from Tsinghua University, China, in 1998 and 2001, respectively. She received
her Ph.D. degree in electrical engineering from Rensselaer Polytechnic Institute, in December 2005. Her research interests
include various topics in wireless ad hoc networks, including capacity of wireless networks, error control coding, and multimedia
communications over wireless.
Yong Pei is currently a tenure-track assistant professor in the Computer Science and Engineering Department, Wright State University,
Dayton, OH. Previously he was a visiting assistant professor in the Electrical and Computer Engineering Department, University
of Miami, Coral Gables, FL. He received his B.S. degree in electrical power engineering from Tsinghua University, Beijing,
in 1996, and M.S. and Ph.D. degrees in electrical engineering from Rensselaer Polytechnic Institute, Troy, NY, in 1999 and
2002, respectively. His research interests include information theory, wireless communication systems and networks, and image/video
compression and communications. He is a member of IEEE and ACM.
Shivkumar Kalyanaraman is an Associate Professor at the Department of Electrical, Computer and Systems Engineering at Rensselaer Polytechnic Institute
in Troy, NY. He received a B.Tech degree from the Indian institute of Technology, Madras, India in July 1993, followed by
M.S. and Ph.D. degrees in computer and Information Sciences at the Ohio State University in 1994 and 1997 respectively. His
research interests are in network traffic management topics such as congestion control, reliability, connectionless traffic
engineering, quality of service (QoS), last-mile community wireless networks, low-cost free-space-optical networks, automated
network management using online simulation, multicast, multimedia networking, and performance analysis. His special interest
lies in developing the interdisciplinary connections between network architecture and fields like control theory, economics,
scalable simulation technologies, video compression and optoelectronics. He is a member of ACM and IEEE.
Babak Azimi-Sadjadi received his B.Sc. from Sharif University of Technology in 1989, his M.Sc. from Tehran University in 1992, and his Ph.D.
from the University of Maryland at College Park in 2001 all in Electrical Engineering. He is currently with Intelligent Automation
Inc. where he is a Senior Research Scientist He also has a joint appointment with the department of Electrical, Systems, and
Computer Engineering of Rensselaer Polytechnic Institute where he is a research assistant professor. His research interests
include, nonlinear filtering, networked control systems, and wireless networks. 相似文献
11.
Today’s static spectrum allocation policy results in a situation where the available spectrum is being exhausted while many
licensed spectrum bands are under-utilized. To resolve the spectrum exhaustion problem, the cognitive radio wireless network,
termed CogNet in this paper, has recently been proposed to enable unlicensed users to dynamically access the licensed spectrum bands that
are unused in either temporal or spatial domain, through spectrum-agile cognitive radios. The CogNet plays the role of secondary
user in this shared spectrum access framework, and the spectrum bands accessible by CogNets are inherently heterogeneous and
dynamic. To establish the communication infrastructure for a CogNet, the cognitive radio of each CogNet node detects the accessible
spectrum bands and chooses one as its operating frequency, a process termed channel assignment. In this paper we propose a graph-based path-centric channel assignment framework to model multi-hop ad hoc CogNets and perform channel assignment from a network perspective.
Simulation results show that the path-centric channel assignment framework outperforms traditional link-centric approach.
Chunsheng Xin received the Ph.D. degree in computer science from State University of New York at Buffalo in 2002. From 2000 to 2002, he was a Research Co-Op in Nokia Research Center, Boston. From 2002, he is an assistant professor in the Computer Science Department, Norfolk State University, Norfolk, Virginia. His research interests include optical networks, cognitive radio wireless networks, and performance evaluation and modeling. Liangping Ma received his B.S. degree in Physics from Wuhan University, Hubei, China, in 1998, and his Ph.D. degree in Electrical Engineering from the University of Delaware, Newark, DE, in 2004. He was with the University of Delaware as a Postdoctoral Research Fellow. Since 2005, he has been with San Diego Research Center, Inc. (now part of Argon ST, Inc.), San Diego, CA, as a Research Staff Member. His research interests include medium access control (MAC), spectrum agile radios, and signal processing. Chien-Chung Shen received his B.S. and M.S. degrees from National Chiao Tung University, Taiwan, and his Ph.D. degree from UCLA, all in computer science. He was a senior research scientist at Bellcore (now Telcordia) Applied Research working on control and management of broadband networks. He is now an associate professor in the Department of Computer and Information Sciences of the University of Delaware, and a recipient of NSF CAREER Award. His research interests include ad hoc and sensor networks, dynamic spectrum management, control and management of broadband networks, distributed object and peer-to-peer computing, and simulation. He is a member of both ACM and IEEE. 相似文献
Chien-Chung ShenEmail: |
Chunsheng Xin received the Ph.D. degree in computer science from State University of New York at Buffalo in 2002. From 2000 to 2002, he was a Research Co-Op in Nokia Research Center, Boston. From 2002, he is an assistant professor in the Computer Science Department, Norfolk State University, Norfolk, Virginia. His research interests include optical networks, cognitive radio wireless networks, and performance evaluation and modeling. Liangping Ma received his B.S. degree in Physics from Wuhan University, Hubei, China, in 1998, and his Ph.D. degree in Electrical Engineering from the University of Delaware, Newark, DE, in 2004. He was with the University of Delaware as a Postdoctoral Research Fellow. Since 2005, he has been with San Diego Research Center, Inc. (now part of Argon ST, Inc.), San Diego, CA, as a Research Staff Member. His research interests include medium access control (MAC), spectrum agile radios, and signal processing. Chien-Chung Shen received his B.S. and M.S. degrees from National Chiao Tung University, Taiwan, and his Ph.D. degree from UCLA, all in computer science. He was a senior research scientist at Bellcore (now Telcordia) Applied Research working on control and management of broadband networks. He is now an associate professor in the Department of Computer and Information Sciences of the University of Delaware, and a recipient of NSF CAREER Award. His research interests include ad hoc and sensor networks, dynamic spectrum management, control and management of broadband networks, distributed object and peer-to-peer computing, and simulation. He is a member of both ACM and IEEE. 相似文献
12.
Transmission power control (TPC) is used in wireless networks to improve channel reuse and/or reduce energy consumption. It
has been often applied to single-input single-output (SISO) systems, where each node is equipped with a single antenna. Multi-input
multi-output (MIMO) systems can improve the throughput or the signal-to-noise ratio (SNR) by providing multiplexing or diversity
gains, respectively. In this paper, we incorporate a power-controlled MAC protocol for a wireless network with two antennas
per node. Our protocol, coined CMAC, combines different types of MIMO gains, allowing for dynamic switching between diversity
and multiplexing modes so as to maximize a utility function that depends on both energy consumption and throughput. CMAC adapts
the “antenna mode,” the transmission power, and the modulation order on a per-packet basis. By “antenna mode” we mean one
of five possible transmit/receive antenna configurations: 1 × 1 (SISO), 2 × 1 (MISO-D), 1 × 2 (SIMO-D), 2 × 2 (MIMO-D), and
2 × 2 (MIMO-M). The second, third, and fourth configurations offer a diversity gain, whereas the last configuration offers
a multiplexing gain. By using control packets to bound the transmission power of potentially interfering terminals, CMAC allows for multiple interference-limited transmissions
to take place in the vicinity of a receiving terminal. We study via simulations the performance of CMAC in ad hoc topologies.
Our results indicate that relative to non-adaptive protocols, CMAC achieves a significant improvement in both the overall
energy consumption and the throughput.
Mohammad Z. Siam is a Ph.D. student and a research assistant in the Department of Electrical and Computer Engineering at The University of Arizona, Arizona, USA. He received the B.Sc. and M.Sc. degrees in Electrical Engineering from Jordan University of Science and Technology, Jordan in 2002 and 2004, respectively. His current research interests are in system architecture and communication protocols for wireless networks with emphasis on power control for MIMO-based networks. M. Siam is a member of the IEEE and the ACM. Marwan Krunz is a professor in the Department of Electrical and Computer Engineering at the University of Arizona and the co-director of Connection One, a joint NSF/state/industry IUCRC cooperative research center. He received the Ph.D. degree in Electrical Engineering from Michigan State University in 1995. From 1995 to 1997 he was a postdoctoral research associate with the Department of Computer Science, University of Maryland, College Park. He also held visiting research positions at INRIA, Sophia Antipolis, France; HP Labs, Palo Alto; and US West Advanced Technologies, Boulder, Colorado. His recent research interests include medium access and routing protocols for mobile ad hoc networks, quality of service provisioning over wireless links, constraint-based routing, WWW traffic modelling, and media streaming. He has published more than 140 journal articles and refereed conference papers in these areas. He received the National Science Foundation CAREER Award (1998–2002). He currently serves on the editorial board for the IEEE/ACM Transactions on Networking and the Computer Communications Journal. He was a guest co-editor for special issues in IEEE Micro and IEEE Communications Magazines. He served as the technical program co-chair for the IEEE INFOCOM 2004 Conference and the 2001 Hot Interconnects Symposium (Stanford University, August 2001). He has served and continues to serve on the executive and technical program committees of several international conferences. He consults for a number of corporations in the telecommunications industry. M. Krunz is a senior member of the IEEE and a member of the ACM. 相似文献
Marwan KrunzEmail: |
Mohammad Z. Siam is a Ph.D. student and a research assistant in the Department of Electrical and Computer Engineering at The University of Arizona, Arizona, USA. He received the B.Sc. and M.Sc. degrees in Electrical Engineering from Jordan University of Science and Technology, Jordan in 2002 and 2004, respectively. His current research interests are in system architecture and communication protocols for wireless networks with emphasis on power control for MIMO-based networks. M. Siam is a member of the IEEE and the ACM. Marwan Krunz is a professor in the Department of Electrical and Computer Engineering at the University of Arizona and the co-director of Connection One, a joint NSF/state/industry IUCRC cooperative research center. He received the Ph.D. degree in Electrical Engineering from Michigan State University in 1995. From 1995 to 1997 he was a postdoctoral research associate with the Department of Computer Science, University of Maryland, College Park. He also held visiting research positions at INRIA, Sophia Antipolis, France; HP Labs, Palo Alto; and US West Advanced Technologies, Boulder, Colorado. His recent research interests include medium access and routing protocols for mobile ad hoc networks, quality of service provisioning over wireless links, constraint-based routing, WWW traffic modelling, and media streaming. He has published more than 140 journal articles and refereed conference papers in these areas. He received the National Science Foundation CAREER Award (1998–2002). He currently serves on the editorial board for the IEEE/ACM Transactions on Networking and the Computer Communications Journal. He was a guest co-editor for special issues in IEEE Micro and IEEE Communications Magazines. He served as the technical program co-chair for the IEEE INFOCOM 2004 Conference and the 2001 Hot Interconnects Symposium (Stanford University, August 2001). He has served and continues to serve on the executive and technical program committees of several international conferences. He consults for a number of corporations in the telecommunications industry. M. Krunz is a senior member of the IEEE and a member of the ACM. 相似文献
13.
Topology control in wireless ad hoc networks is to select a subgraph of the communication graph (when all nodes use their
maximum transmission range) with some properties for energy conservation. In this paper, we propose two novel localized topology
control methods for homogeneous wireless ad hoc networks.
Our first method constructs a structure with the following attractive properties: power efficient, bounded node degree, and
planar. Its power stretch factor is at most
, and each node only has to maintain at most
neighbors where the integer
is an adjustable parameter, and β is a real constant between 2 and 5 depending on the wireless transmission environment.
It can be constructed and maintained locally and dynamically. Moreover, by assuming that the node ID and its position can
be represented in
bits each for a wireless network of n nodes, we show that the structure can be constructed using at most 24n messages, where each message is
bits.
Our second method improves the degree bound to k, relaxes the theoretical power spanning ratio to
, where
is an adjustable parameter, and keeps all other properties. We show that the second structure can be constructed using at
most 3n messages, where each message has size of
bits.
We also experimentally evaluate the performance of these new energy efficient network topologies. The theoretical results
are corroborated by the simulations: these structures are more efficient in practice, compared with other known structures
used in wireless ad hoc networks and are easier to construct. In addition, the power assignment based on our new structures
shows low energy cost and small interference at each wireless node.
The work of Xiang-Yang Li is partially supported by NSFCCR-0311174.
Wen-Zhan Song received Ph.D. from Illinois Institute of Technology in 2005, BS and MS from Nanjing University of Science and Technology
in 1997 and 2000. He is currently an assistant professor in Washington State University. His current research interest is
mainly focus on network protocol and algorithm design, especially in wireless networks, sensor networks and Peer-to-Peer networks.
He is a member of the IEEE.
Yu Wang received the Ph.D. degree in computer science from Illinois Institute of Technology in 2004, the BEng degree and the MEng
degree in computer science from Tsinghua University, China, in 1998 and 2000. He has been an assistant professor of computer
science at the Univeristy of North Carolina at Charlotte since 2004. His current research interests include wireless networks,
mobile computing, algorithm design, and artificial intelligence. He is a member of the ACM, IEEE, and IEEE Communication Society.
Xiang-Yang Li has been an Assistant Professor of Computer Science at the Illinois Institute of Technology since 2000. He hold MS (2000)
and PhD (2001) degree at Computer Science from University of Illinois at Urbana-Champaign. He received his Bachelor degree
at Computer Science and Bachelor degree at Business Management from Tsinghua University, P.R. China in 1995. His research
interests span the computational geometry, wireless ad hoc networks, game theory, cryptography and network security. He is
a Member of the ACM, IEEE, and IEEE Communication Society.
Ophir Frieder is the IITRI Professor of Computer Science at the Illinois Institute of Technology. His research interests span the general
area of distributed information systems. He is a Member of ACM and a Fellow of the IEEE. 相似文献
14.
15.
This article focuses on energy-efficient packet transmission with individual packet delay constraints over a fading channel.
The problem of optimal offline scheduling (vis-à-vis total transmission energy), assuming information of all packet arrivals
and channel states before scheduling, is formulated as a convex optimization problem with linear constraints. The optimality
conditions are analyzed. From the analysis, a recursive algorithm is developed to search for the optimal offline scheduling.
The optimal offline scheduler tries to equalize the energy-rate derivative function as much as possible subject to causality
and delay constraints, in contrast to the equalization of transmission rates for optimal scheduling in static channels. It
is shown that the optimal offline schedulers for fading and static channels have a similar symmetry property. Combining the
symmetry property with potential idling periods, upper and lower bounds on the average packet delay are derived. The properties
of the optimal offline schedule and the impact of packet sizes, individual delay constraints, and channel variations are demonstrated
via simulations. A heuristic online scheduling algorithm, assuming causal traffic and channel information, is proposed and
shown via simulations to achieve energy and delay performances comparable to those of the optimal offline scheduler in a wide
range of scenarios.
Wanshi Chen received the B.S. degree (with highest honors) from Southwest Jiaotong University, Chengdu, China, the M.S. degree from the Ohio State University, Columbus, and the Ph.D. degree from the University of Southern California, Los Angeles, respectively. From 2000 to 2006, he was with Ericsson working on CDMA2000 related research, implementation, and standard development. Since May 2006, he has been with Qualcomm, where he is involved in research and development of the long-term evolution of third-generation wireless standards. His research interests include topics in resource allocation, communication theory, cooperative transmissions, and wireless networking. Urbashi Mitra received the B.S. and the M.S. degrees from the University of California at Berkeley in 1987 and 1989 respectively, both in Electrical Engineering and Computer Science. From 1989 until 1990 she worked as a Member of Technical Staff at Bellcore in Red Bank, NJ. In 1994, she received her Ph.D. from Princeton University in Electrical Engineering. From 1994 to 2000, Dr. Mitra was a member of the faculty of the Department of Electrical Engineering at The Ohio State University, Columbus, Ohio. In 2001, she joined the Department of Electrical Engineering at the University of Southern California, Los Angeles, where she is currently a Professor. Dr. Mitra is currently an Associate Editor for the IEEE Transactions on Information Theory and the Journal of Oceanic Engineering. She was an Associate Editor for the IEEE Transactions on Communications from 1996 to 2001. Dr. Mitra is serving a second term as a member of the IEEE Information Theory Society’s Board of Governors. She is the recipient of: IEEE Fellow (2007), Texas Instruments Visiting Professor (Fall 2002, Rice University), 2001 Okawa Foundation Award, 2000 Lumley Award for Research (OSU College of Engineering), 1997 MacQuigg Award for Teaching (OSU College of Engineering), 1996 National Science Foundation (NSF) CAREER Award, 1994 NSF International Post-doctoral Fellowship, 1998 Lockheed Leadership Fellowship, 1987 California Microelectronics Fellowship. She has co-chaired the IEEE Communication Theory Symposium at ICC 2003 in Anchorage, AK and the first ACM Workshop on Underwater Networks at Mobicom 2006, Los Angeles, CA. Dr. Mitra was the tutorials Chair for IEEE ISIT 2007 in Nice, France and is currently the Finance Chair for IEEE ICASSP 2008 in Las Vegas, NV. She has held visiting appointments at: the Eurecom Institute, Rice University and Stanford University. Dr. Mitra is currently co-Director of the Communication Sciences Institute at the University of Southern California. Michael J. Neely received B.S. degree in both Electrical Engineering and Mathematics from the University of Maryland, College Park, in 1997. He was then awarded a 3 year Department of Defense NDSEG Fellowship for graduate study at the Massachusetts Institute of Technology, where he received an M.S. degree in 1999 and a Ph.D. in 2003, both in Electrical Engineering. In 2004 he joined the faculty of the Electrical Engineering department at the University of Southern California, where he is currently an Assistant Professor. His research is in the area of stochastic network optimization for satellite and wireless networks, mobile ad-hoc networks, and queueing systems. 相似文献
Michael J. NeelyEmail: |
Wanshi Chen received the B.S. degree (with highest honors) from Southwest Jiaotong University, Chengdu, China, the M.S. degree from the Ohio State University, Columbus, and the Ph.D. degree from the University of Southern California, Los Angeles, respectively. From 2000 to 2006, he was with Ericsson working on CDMA2000 related research, implementation, and standard development. Since May 2006, he has been with Qualcomm, where he is involved in research and development of the long-term evolution of third-generation wireless standards. His research interests include topics in resource allocation, communication theory, cooperative transmissions, and wireless networking. Urbashi Mitra received the B.S. and the M.S. degrees from the University of California at Berkeley in 1987 and 1989 respectively, both in Electrical Engineering and Computer Science. From 1989 until 1990 she worked as a Member of Technical Staff at Bellcore in Red Bank, NJ. In 1994, she received her Ph.D. from Princeton University in Electrical Engineering. From 1994 to 2000, Dr. Mitra was a member of the faculty of the Department of Electrical Engineering at The Ohio State University, Columbus, Ohio. In 2001, she joined the Department of Electrical Engineering at the University of Southern California, Los Angeles, where she is currently a Professor. Dr. Mitra is currently an Associate Editor for the IEEE Transactions on Information Theory and the Journal of Oceanic Engineering. She was an Associate Editor for the IEEE Transactions on Communications from 1996 to 2001. Dr. Mitra is serving a second term as a member of the IEEE Information Theory Society’s Board of Governors. She is the recipient of: IEEE Fellow (2007), Texas Instruments Visiting Professor (Fall 2002, Rice University), 2001 Okawa Foundation Award, 2000 Lumley Award for Research (OSU College of Engineering), 1997 MacQuigg Award for Teaching (OSU College of Engineering), 1996 National Science Foundation (NSF) CAREER Award, 1994 NSF International Post-doctoral Fellowship, 1998 Lockheed Leadership Fellowship, 1987 California Microelectronics Fellowship. She has co-chaired the IEEE Communication Theory Symposium at ICC 2003 in Anchorage, AK and the first ACM Workshop on Underwater Networks at Mobicom 2006, Los Angeles, CA. Dr. Mitra was the tutorials Chair for IEEE ISIT 2007 in Nice, France and is currently the Finance Chair for IEEE ICASSP 2008 in Las Vegas, NV. She has held visiting appointments at: the Eurecom Institute, Rice University and Stanford University. Dr. Mitra is currently co-Director of the Communication Sciences Institute at the University of Southern California. Michael J. Neely received B.S. degree in both Electrical Engineering and Mathematics from the University of Maryland, College Park, in 1997. He was then awarded a 3 year Department of Defense NDSEG Fellowship for graduate study at the Massachusetts Institute of Technology, where he received an M.S. degree in 1999 and a Ph.D. in 2003, both in Electrical Engineering. In 2004 he joined the faculty of the Electrical Engineering department at the University of Southern California, where he is currently an Assistant Professor. His research is in the area of stochastic network optimization for satellite and wireless networks, mobile ad-hoc networks, and queueing systems. 相似文献
16.
Potential Cognitive Radio Denial-of-Service Vulnerabilities and Protection Countermeasures: a Multi-dimensional Analysis and Assessment 总被引:1,自引:0,他引:1
Cognitive radios sense spectrum activity and apply spectrum policies in order to make decisions on when and in what bands
they may communicate. These activities go beyond what is done when traditional radios communicate. This paper examines the
denial of service vulnerabilities that are opened by these additional activities and explores potential protection remedies
that can be applied. An analysis of how vulnerable are victim cognitive radios to potential denial of service attacks is presented
along different axis, namely the network architecture employed, the spectrum access technique used and the spectrum awareness
model. The goal is to assist cognitive radio designers to incorporate effective security measures now in the early stages
of cognitive radio development.
Timothy X Brown received his B.S. in physics from Pennsylvania State University and his Ph.D. in electrical engineering from California Institute of Technology in 1990 when he joined the Jet Propulsion Lab. In 1992 he joined Bell Communications Research. Since 1995 he has had a joint appointment with the Department of Electrical and Computer Engineering and the Interdisciplinary Telecommunications Program at the University of Colorado, Boulder. He is currently an Associate Professor. His research interests include adaptive network control, wireless communications systems, and spectrum policy. He is a recipient of the NSF CAREER Award. In 2003 he was chosen the Global Wireless Education Consortium’s (GWEC) wireless educator of the year. Amita Sethi received her B. Tech degree from Mysore University, India in 1999. From January 2000 to September 2005, she has worked in the telecommunications software industry with Aricent Technologies (formerly, Flextronics Software Systems). Since January 2006, she is a Masters student at the University of Colorado, Boulder and is a research assistant in Professor Timothy Brown’s wireless networking lab. Her research interests include security in cognitive radio networks and wireless ad-hoc networks. 相似文献
Amita SethiEmail: |
Timothy X Brown received his B.S. in physics from Pennsylvania State University and his Ph.D. in electrical engineering from California Institute of Technology in 1990 when he joined the Jet Propulsion Lab. In 1992 he joined Bell Communications Research. Since 1995 he has had a joint appointment with the Department of Electrical and Computer Engineering and the Interdisciplinary Telecommunications Program at the University of Colorado, Boulder. He is currently an Associate Professor. His research interests include adaptive network control, wireless communications systems, and spectrum policy. He is a recipient of the NSF CAREER Award. In 2003 he was chosen the Global Wireless Education Consortium’s (GWEC) wireless educator of the year. Amita Sethi received her B. Tech degree from Mysore University, India in 1999. From January 2000 to September 2005, she has worked in the telecommunications software industry with Aricent Technologies (formerly, Flextronics Software Systems). Since January 2006, she is a Masters student at the University of Colorado, Boulder and is a research assistant in Professor Timothy Brown’s wireless networking lab. Her research interests include security in cognitive radio networks and wireless ad-hoc networks. 相似文献
17.
In order to conserve battery power in very dense sensor networks, some sensor nodes may be put into the sleep state while
other sensor nodes remain active for the sensing and communication tasks. In this paper, we study the node sleep scheduling
problem in the context of clustered sensor networks. We propose and analyze the Linear Distance-based Scheduling (LDS) technique
for sleeping in each cluster. The LDS scheme selects a sensor node to sleep with higher probability when it is farther away
from the cluster head. We analyze the energy consumption, the sensing coverage property, and the network lifetime of the proposed
LDS scheme. The performance of the LDS scheme is compared with that of the conventional Randomized Scheduling (RS) scheme.
It is shown that the LDS scheme yields more energy savings while maintaining a similar sensing coverage as the RS scheme for
sensor clusters. Therefore, the LDS scheme results in a longer network lifetime than the RS scheme.
Jing Deng received the B.E. and M.E. degrees in Electronic Engineering from Tsinghua University, Beijing, P. R. China, in 1994 and
1997, respectively, and the Ph.D. degree in Electrical and Computer Engineering from Cornell University, Ithaca, NY, in 2002.
Dr. Deng is an assistant professor in the Department of Computer Science at the University of New Orleans. From 2002 to 2004,
he visited the CASE center and the Department of Electrical Engineering and Computer Science at Syracuse University, Syracuse,
NY as a research assistant professor, supported by the Syracuse University Prototypical Research in Information Assurance
(SUPRIA) program. He was a teaching assistant from 1998 to 1999 and a research assistant from 1999 to 2002 in the School of
Electrical and Computer Engineering at Cornell University. His interests include mobile ad hoc networks, wireless sensor networks,
wireless network security, energy efficient wireless networks, and information assurance.
Wendi B. Heinzelman is an assistant professor in the Department of Electrical and Computer Engineering at the University of Rochester. She received
a B.S. degree in Electrical Engineering from Cornell University in 1995 and M.S. and Ph.D. degrees in Electrical Engineering
and Computer Science from MIT in 1997 and 2000 respectively. Her current research interests lie in the areas of wireless communications
and networking, mobile computing, and multimedia communication. Dr. Heinzelman received the NSF Career award in 2005 for her
work on cross-layer optimizations for wireless sensor networks, and she received the ONR Young Investigator award in 2005
for her research on balancing resource utilization in wireless sensor networks. Dr. Heinzelman was co-chair of the 1st Workshop
on Broadband Advanced Sensor Networks (BaseNets '04), and she is a member of Sigma Xi, the IEEE, and the ACM.
Yunghsiang S. Han was born in Taipei, Taiwan, on April 24, 1962. He received the B.S. and M.S. degrees in electrical engineering from the National
Tsing Hua University, Hsinchu, Taiwan, in 1984 and 1986, respectively, and the Ph.D. degree from the School of Computer and
Information Science, Syracuse University, Syracuse, NY, in 1993. From 1986 to 1988 he was a lecturer at Ming-Hsin Engineering
College, Hsinchu, Taiwan. He was a teaching assistant from 1989 to 1992 and from 1992 to 1993 a research associate in the
School of Computer and Information Science, Syracuse University. From 1993 to 1997 he was an Associate Professor in the Department
of Electronic Engineering at Hua Fan College of Humanities and Technology, Taipei Hsien, Taiwan. From 1997 to 2004 he was
with the Department of Computer Science and Information Engineering at National Chi Nan University, Nantou, Taiwan. He was
promoted to Full Professor in 1998. From June to October 2001 he was a visiting scholar in the Department of Electrical Engineering
at University of Hawaii at Manoa, HI, and from September 2002 to January 2004 he was the SUPRIA visiting research scholar
in the Department of Electrical Engineering and Computer Science and CASE center at Syracuse University, NY. He is now with
the Graduate Institute of Communication Engineering at National Taipei University, Taipei, Taiwan. His research interests
are in wireless networks, security, and error-control coding. Dr. Han is a winner of 1994 Syracuse University Doctoral Prize.
Pramod K. Varshney was born in Allahabad, India on July 1, 1952. He received the B.S. degree in electrical engineering and computer science
(with highest honors), and the M.S. and Ph.D. degrees in electrical engineering from the University of Illinois at Urbana-Champaign
in 1972, 1974, and 1976 respectively. Since 1976 he has been with Syracuse University, Syracuse, NY where he is currently
a Professor of Electrical Engineering and Computer Science and the Research Director of the New York State Center for Advanced
Technology in Computer Applications and Software Engineering. His current research interests are in distributed sensor networks
and data fusion, detection and estimation theory, wireless communications, intelligent systems, signal and image processing,
and remote sensing he has published extensively. He is the author of Distributed Detection and Data Fusion, published by Springer-Verlag
in 1997 and has co-edited two other books. Dr. Varshney is a member of Tau Beta Pi and is the recipient of the 1981 ASEE Dow
Outstanding Young Faculty Award. He was elected to the grade of Fellow of the IEEE in 1997 for his contributions in the area
of distributed detection and data fusion. In 2000, he received the Third Millennium Medal from the IEEE and Chancellor's Citation
for exceptional academic achievement at Syracuse University. He serves as a distinguished lecturer for the AES society of
the IEEE. He is on the editorial board Information Fusion. He was the President of International Society of Information Fusion
during 2001. 相似文献
18.
In this paper we develop distributed approaches for power allocation and scheduling in wireless access networks. We consider
a model where users communicate over a set of parallel multi-access fading channels, as in an orthogonal frequency division
multiple access (OFDMA) system. At each time, each user must decide which channels to transmit on and how to allocate its
power over these channels. We give distributed power allocation and scheduling policies, where each user’s actions depend
only on knowledge of their own channel gains. Assuming a collision model for each channel, we characterize an optimal policy
which maximizes the system throughput and also give a simpler sub-optimal policy. Both policies are shown to have the optimal
scaling behavior in several asymptotic regimes.
Xiangping Qin received the B.S. and M.S. degrees in Electrical Engineering from Tsinghua University,China in 1998 and 2000 respectively,
and the Ph.D. degree in Electrical Engineering from Northwestern University in 2005. She is currently a senior engineer at
Samsung Information Systems America. In 2005/2006, She was a postdoctoral associate in the Department of Electrical and Computer
Engineering at Boston University. In 2004, she was an intern on the technical staff of Intel Cooperate Technology Laboratory,
Oregon. Her primary research interests include wireless communication and data networks. She is the recipient of aWalter P.
Murphy Fellowship for the 2000/2001 academic year from the ECE Department at Northwestern University.
Randall A. Berry received the B.S. degree in Electrical Engineering from the University of Missouri-Rolla in 1993 and the M.S. and Ph.D. degrees
in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology in 1996 and 2000, respectively.
In September 2000, he joined the faculty of Northwestern University, where he is currently an Associate Professor in the Department
of Electrical Engineering and Computer Science. In 1998 he was on the technical staff at MIT Lincoln Laboratory in the Advanced
Networks Group, where he worked on optical network protocols. His current research interests include wireless communication,
data networks and information theory. Dr. Berry is the recipient of a 2003 NSF CAREER award and the 2001-02 best teacher award
from the ECE Department at Northwestern. He is currently serving on the editorial board of IEEE Transactions on Wireless Communications and is a guest editor of an upcoming special issue of IEEE Transactions on Information Theory on “Relaying and Cooperation in Networks.” 相似文献
19.
The frequency channelized receiver enables the use of practical analog-to-digital converters (ADC) to digitize ultra-wideband
(UWB) signals. The design issues of the analog and digital baseband processor for the channelized receiver in a UWB transmitted
reference (TR) system are investigated. In the analog part, the receiver performance is shown to be weakly dependent on the
analog filter bandwidth, the filter order, and the ADC oversampling ratio assuming white input noise. In the digital part,
the coarse acquisition performance is shown to be significantly better in a channelized receiver than in a fullband receiver.
The implementation issues for fine synchronization and correlation window length are also studied.
Lei Feng received the B.S. and M.S. degree in electrical engineering from Peking University, Beijing, in 1997 and 2000, respectively.
He is currently working toward the Ph.D degree in electrical engineering at University of Southern California, Los Angeles,
CA. His doctoral research focuses on the design of wideband communication transceivers for wireless and wireline applications.
Won Namgoong received the BS degree in Electrical Engineering and Computer Science from the University of California at Berkeley in 1993,
and the MS and Ph.D. degrees in Electrical Engineerig from Stanford University in 1995 and 1999, respectively. In 1999, he
joined the faculty of the Electrical Engineering Department at the University of Southern California, where he is an Assistant
Professor. His current research areas include wireless/wireline communication systems, signal processing systems, RF circuits,
and low-power/high-speed circuits. In 2002, he received the National Science Foundation (NSF) CAREER Award. 相似文献
20.
In this paper, we develop an analytical model to evaluate the delay performance of the burst-frame-based CSMA/CA protocol
under unsaturated conditions, which has not been fully addressed in the literature. Our delay analysis is unique in that we
consider the end-to-end packet delay, which is the duration from the epoch that a packet enters the queue at the MAC layer
of the transmitter side to the epoch that the packet is successfully received at the receiver side. The analytical results
give excellent agreement with the simulation results, which represents the accuracy of our analytical model. The results also
provide important guideline on how to set the parameters of the burst assembly policy. Based on these results, we further
develop an efficient adaptive burst assembly policy so as to optimize the throughput and delay performance of the burst-frame-based
CSMA/CA protocol.
Kejie Lu received the B.E. and M.E. degrees in Telecommunications Engineering from Beijing University of Posts and Telecommunications,
Beijing, China, in 1994 and 1997, respectively. He received the Ph.D. degree in Electrical Engineering from the University
of Texas at Dallas in 2003. In 2004 and 2005, he was a postdoctoral research associate in the Department of Electrical and
Computer Engineering, University of Florida. Currently, he is an assistant professor in the Department of Electrical and Computer
Engineering, University of Puerto Rico at Mayagüez. His research interests include architecture and protocols design for computer
and communication networks, performance analysis, network security, and wireless communications.
Jianfeng Wang received the B.E. and M.E. degrees in electrical engineering from Huazhong University of Science and Technology, China, in
1999 and 2002, respectively, and the Ph.D. degree in electrical engineering from University of Florida in 2006. From January
2006 to July 2006, he was a research intern in wireless standards and technology group, Intel Corporation. In October 2006,
he joined Philips Research North America as a senior member research staff in wireless communications and networking department.
He is engaged in research and standardization on wireless networks with emphasis on medium access control (MAC).
Dapeng Wu received B.E. in Electrical Engineering from Huazhong University of Science and Technology, Wuhan, China, in 1990, M.E. in
Electrical Engineering from Beijing University of Posts and Telecommunications, Beijing, China, in 1997, and Ph.D. in Electrical
and Computer Engineering from Carnegie Mellon University, Pittsburgh, PA, in 2003.
Since August 2003, he has been with Electrical and Computer Engineering Department at University of Florida, Gainesville,
FL, as an Assistant Professor. His research interests are in the areas of networking, communications, multimedia, signal processing,
and information and network security. He received the IEEE Circuits and Systems for Video Technology (CSVT) Transactions Best
Paper Award for Year 2001, and the Best Paper Award in International Conference on Quality of Service in Heterogeneous Wired/Wireless
Networks (QShine) 2006.
Currently, he serves as the Editor-in-Chief of Journal of Advances in Multimedia, and an Associate Editor for IEEE Transactions
on Wireless Communications, IEEE Transactions on Circuits and Systems for Video Technology, IEEE Transactions on Vehicular
Technology, and International Journal of Ad Hoc and Ubiquitous Computing. He is also a guest-editor for IEEE Journal on Selected
Areas in Communications (JSAC), Special Issue on Cross-layer Optimized Wireless Multimedia Communications. He served as Program
Chair for IEEE/ACM First International Workshop on Broadband Wireless Services and Applications (BroadWISE 2004); and as a
technical program committee member of over 30 conferences. He is Vice Chair of Mobile and wireless multimedia Interest Group
(MobIG), Technical Committee on Multimedia Communications, IEEE Communications Society. He is a member of the Best Paper Award
Committee, Technical Committee on Multimedia Communications, IEEE Communications Society.
Yuguang Fang received a Ph.D. degree in Systems Engineering from Case Western Reserve University in January 1994 and a Ph.D. degree in
Electrical Engineering from Boston University in May 1997. He was an assistant professor in the Department of Electrical and
Computer Engineering at New Jersey Institute of Technology from July 1998 to May 2000. He then joined the Department of Electrical
and Computer Engineering at University of Florida in May 2000 as an assistant professor and got an early promotion to an associate
professor with tenure in August 2003 and to a full professor in August 2005. He has published over 200 papers in refereed
professional journals and conferences. He received the National Science Foundation Faculty Early Career Award in 2001 and
the Office of Naval Research Young Investigator Award in 2002. He has served on several editorial boards of technical journals
including IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Transactions on Mobile Computing
and ACM Wireless Networks. He have also been actively participating in professional conference organizations such as serving
as The Steering Committee Co-Chair for QShine, the Technical Program Vice-Chair for IEEE INFOCOM’2005, Technical Program Symposium
Co-Chair for IEEE Globecom’2004, and a member of Technical Program Committee for IEEE INFOCOM (1998, 2000, 2003–2007). He
is a senior member of the IEEE. 相似文献