Adaptive cooperative coding with power allocation in wireless relay networks

Li Li, Honglin Hu, Xia Chen, Hsiao-Hwa Chen

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Cooperative relay is an effective means to improve spectral efficiency in wireless networks. In this paper, we propose a cooperative relay network protocol based on Adaptive Cooperative Coding (ACC), in which the Level of Cooperation (LoC) is made adaptive to follow the variation of channel propagation conditions. We derive the strict performance upper bound and asymptotic bound expressions for the ACC protocol. Moreover, we develop a sub-optimal power allocation algorithm based on the derived asymptotic bound to further improve the performance of the ACC protocol. The optimization is achieved in two scenarios based on different link channel qualities. The cooperative diversity gain and power allocation gain of the ACC protocol are evaluated and their numerical results are provided.

Original languageEnglish
Article number5285183
Pages (from-to)4604-4615
Number of pages12
JournalIEEE Transactions on Wireless Communications
Volume8
Issue number9
DOIs
Publication statusPublished - 2009 Sep 1

Fingerprint

Relay Networks
Power Allocation
Wireless Networks
Coding
Network protocols
Cooperative Diversity
Cooperative Networks
Diversity Gain
Spectral Efficiency
Network Protocols
Optimal Allocation
Wireless networks
Relay
Propagation
Upper bound
Numerical Results
Scenarios
Optimization

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

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Adaptive cooperative coding with power allocation in wireless relay networks. / Li, Li; Hu, Honglin; Chen, Xia; Chen, Hsiao-Hwa.

In: IEEE Transactions on Wireless Communications, Vol. 8, No. 9, 5285183, 01.09.2009, p. 4604-4615.

Research output: Contribution to journalArticle

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