Cognitive maritime wireless mesh/ad hoc networks |
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| Affiliation: | 1. Laboratory of Optic Fiber Sensors, Department of Electronic and Engineering, Tsinghua University, Beijing 100084, China;2. Institute of Ocean Research, Peking University, Beijing 100871, China;1. School of Electronic Science & Applied Physics, Hefei University of Technology, Tunxi Road 193, Hefei 230009, China;2. College of Science, Shanghai Institute of Technology, Haiquan Road 100, Fengxian, Shanghai, 201418, China;3. Research Center for Advanced Photon Technology, Toyota Technological Institute, 2-12-1, Hisakata, Tempaku, Nagoya 468-8511, Japan;1. Laboratory of Turbomachinery (LSM), Helmut-Schmidt-University, University of the Federal Armed Forces, Hamburg, Germany;2. Institute of Aerospace Thermodynamics, Stuttgart University, Stuttgart, Germany;3. Siemens Power and Gas Division, Huttenstr. 12, 10553 Berlin, Germany;1. Department of Electronic Engineering, Universidad de Sevilla, Descubrimientos s/n, 41092 Sevilla, Spain;2. Department of Electrical Engineering, Universidad de Sevilla, Descubrimientos s/n, 41092 Sevilla, Spain;1. Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA;2. Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA;3. Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA;4. Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA;5. Department of Neurology, University of Minnesota, Minneapolis, MN, USA |
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| Abstract: | Cognitive maritime wireless mesh/ad hoc networks are proposed in this paper, for the purpose to provide high-speed and low-cost communications for the current maritime users by incorporating the licensed but unused frequency bands opportunistically. Compared to other technologies, this scheme offers advantages of plenty of available bandwidth, easy installation, easy coverage extension, and high resilience. Nodes design requirements, possibly available frequency bands, regulation requirements, operation standards, and maritime communication challenges of the proposed networks are introduced and analyzed. A cognition-enhanced mesh medium access control (MAC) protocol for the operation of the proposed cognitive maritime mesh/ad hoc networks is presented, as well as a routing protocol and a switching antenna design that are capable of meeting the maritime challenges. Simulation results show that a higher detection probability and a longer sensing interval are both helpful to achieve better network performance, especially in case of high sea state. The operators need to find balance among cost, network performance, and protection of incumbents in the operation of the networks. |
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