User Independent Paging Scheme for Mobile IP |
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Authors: | Jiang Xie |
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Affiliation: | (1) Department of Electrical and Computer Engineering, The University of North Carolina at Charlotte, Charlotte, NC, 28773 |
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Abstract: | Multi-step paging has been widely proposed in personal communications services (PCS) systems to reduce the signaling overheads.
Similar ideas can be applied to Mobile IP to provide IP paging services. However, current proposed multi-step paging schemes
are user dependent under which the partition of paging areas and the selection of paging sequence are different for each user.
The performance of a user dependent paging scheme for individual users may be affected by many factors. It is often difficult
to achieve perfect performance for each user. In addition, when multiple users are paged at the same time, user dependent
paging schemes may consume significant system resources. This paper introduces a user independent paging scheme where the
paging criterion is not based on individual user information. The goal of user independent paging is to provide satisfactory
overall performance of the whole system, when personalized optimal performance for each user is hard to obtain. The user independent
paging scheme is proposed for IP mobility for its easy implementation and convenient combination with paging request aggregation.
The paging criterion adopted is the mobility rate of each subnet determined by the aggregated movements of all mobile users.
In order to implement the proposed scheme, a concept of “semi-idle state” is introduced and the detailed solution for obtaining
mobility rate is presented. Analytical results show that when paging one user at a time, the performance of the proposed user
independent paging scheme is comparable to that of the paging schemes based on perfect knowledge of user movement statistics.
When paging multiple users simultaneously and when the knowledge on individual user behavior is not perfectly accurate, the
proposed scheme has remarkable advantages in terms of reducing the overall paging cost.
Jiang Xie received her B.E. degree from Tsinghua University, Beijing, China, in 1997, M.Phil. degree from Hong Kong University of Science
and Technology in 1999, and M.S. and Ph.D. degrees from Georgia Institute of Technology in 2002 and 2004, respectively, all
in electrical engineering. She is currently an assistant professor with the Department of Electrical and Computer Engineering
at the University of North Carolina-Charlotte. Her current research interests include resource and mobility management of
wireless networks,QoS provisioning, and next-generation Internet. She is a member of IEEE and ACM. |
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Keywords: | location tracking multi-step paging Mobile IP user profile paging cost |
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