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Volume 32 Issue 10
Dec.  2010
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Hui Hui, Zhu Shi-Hua, Lv Gang-Ming , Sun Xiao-Dong. Power Allocation and Relay Selection in Multi-source Cooperative Networks[J]. Journal of Electronics & Information Technology, 2010, 32(10): 2446-2451. doi: 10.3724/SP.J.1146.2009.01340
Citation: Hui Hui, Zhu Shi-Hua, Lv Gang-Ming , Sun Xiao-Dong. Power Allocation and Relay Selection in Multi-source Cooperative Networks[J]. Journal of Electronics & Information Technology, 2010, 32(10): 2446-2451. doi: 10.3724/SP.J.1146.2009.01340

Power Allocation and Relay Selection in Multi-source Cooperative Networks

doi: 10.3724/SP.J.1146.2009.01340
  • Received Date: 2009-10-15
  • Rev Recd Date: 2010-12-31
  • Publish Date: 2010-10-19
  • In order to minimizing the total transmit power while guaranteeing the outage performance at the same time, in this paper a distributed power allocation and relay selection scheme is proposed for amplify-and-forward cooperative networks with multiple sources and multiple relays. In the proposed scheme, sources select their relays independently, and introduce channel-related timers to compete for their preferred relay. Then the selected relays independently determine whether to forward the messages or not according to a forwarding threshold. Simulation results show that the proposed scheme can reduce the total transmit power of the network significantly and has a similar performance to the optimal central-controlled scheme with a much lower overhead.
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