Cross-Layer Design of Coded Multicast for Wireless Random Access Networks

Joint optimization of network coding and Aloha-based medium access control (MAC) for multi-hop wireless networks is considered. The multicast throughput with a power consumption-related penalty is maximized subject to flow conservation and MAC achievable rate constraints to obtain the optimal transm...

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Vydáno v:IEEE journal on selected areas in communications Ročník 29; číslo 10; s. 1970 - 1980
Hlavní autoři: Rajawat, K., Gatsis, N., Seung-Jun Kim, Giannakis, G. B.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.12.2011
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Access control
Algorithms
Approximation
Approximation algorithms
Approximation methods
Coding
cross-layer optimization
Mathematical analysis
Mathematical models
Military communication
Multicast
Network coding
Networks
On-line systems
Optimization
Protocols
random access
Studies
Wireless communication
ISSN:0733-8716, 1558-0008
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Shrnutí:Joint optimization of network coding and Aloha-based medium access control (MAC) for multi-hop wireless networks is considered. The multicast throughput with a power consumption-related penalty is maximized subject to flow conservation and MAC achievable rate constraints to obtain the optimal transmission probabilities. The relevant optimization problem is inherently non-convex and hence difficult to solve even in a centralized manner. A successive convex approximation technique is employed to obtain a Karush-Kuhn-Tucker solution. A separable problem structure is obtained and the dual decomposition technique is adopted to develop a distributed solution. The algorithm is thus applicable to large networks, and amenable to online implementation. Numerical tests verify performance and complexity advantages of the proposed approach over existing designs. A network simulation with implementation of random linear network coding shows performance very close to the one theoretically designed.
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ISSN:0733-8716
1558-0008
DOI:10.1109/JSAC.2011.111207