Performance analysis of relay selection schemes in two-hop cellular networks with cooperative relaying
Cooperative relaying has received significant attention as an efficient way to exploit diversity in a wireless network.In this paper,we present two relay selection schemes in a two-hop cellular network with cooperative relaying.In order to reduce the amount of feedback for the channel gain,a semi-distributed scheme based on the relay feasible condition is proposed.Each relay node can measure its backward and forward channel gains.If both the channel gains are larger than a pre-defined threshold,this relay node is feasible.The final decision on the best relay selection is still given by the base station.Furthermore,the switch-and-examine relayselection scheme,which selects the first feasible relay node,is also investigated.Simulation results are presented to illustrate the advantage of two proposed schemes.
relay selection cooperative relaying amplify-and-forward cellular networks
Hua Wu
School of Information Engineering Beijing Geely University Beijing,P.R.China
国际会议
太原
英文
511-515
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）