Performance Research of Multi-relay Hybrid-forwarding Cooperative Transmission Scheme
Qiang Feng · 2010
In order to overcome the shortcomings of decode-and-forward and amplify-and-forward transmission,a multi-relay hybrid-forwarding cooperative transmission scheme (MRHF-CTS) was proposed to optimize the performance of cooperative communication system,which selects the style of forwarding according to the result of decoding at relay nodes and uses the broadcast channels among relay nodes to improve the transmission reliability of multi-relay wireless networks.The performance characterizations in terms of outage probabilities are developed.The results show that in contrast to decode-and-forward and amplify-and-forward scheme,MRHF-CTS offers a superior performance.And in the high signal-to-noise ratio (SNR) regime,the optimal performance of decode-and-forward transmission is gained.