End-to-end performance of transmission systems with relays over Rayleigh-fading channels
IEEE Transactions on Wireless Communications
PHY-layer Fairness in Amplify and Forward Cooperative Diversity Systems
IEEE Transactions on Wireless Communications
Opportunistic cooperative diversity with feedback and cheap radios
IEEE Transactions on Wireless Communications - Part 2
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
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A joint consideration about Automatic Repeat re-Quest (ARQ) retransmission scheme and dynamic relay selection for wireless cooperative networks is proposed in this paper. Relays selected for retransmission in ARQ are different from round to round, so that good relays (with good channel condition on average) will be used only once. Each relay quantizes its source-relay channel state information (CSI) and figures out which quantization regions it belongs to. Relays in each quantization regions will be only responsible for one possible retransmission. In this way, much power of these good relays are reserved. Simulation results show that although the proposed scheme will bring certain packet loss ratio (PLR) performance loss, optimizing the choice of thresholds of the quantization will limit this performance loss.