收稿日期: 2013-01-25
修回日期: 2013-05-28
网络出版日期: 2014-03-15
基金资助
国家科技重大专项（2010ZX03002-003-01）资助
An AF partial relay selection strategy with feedback delay
Received date: 2013-01-25
Revised date: 2013-05-28
Online published: 2014-03-15
叶帆 , 邱玲 . 延时信道信息下一种新的AF中继选择算法[J]. 中国科学院大学学报, 2014 , 31(2) : 243 -248 . DOI: 10.7523/jssn.2095-6134.2014.02.015
We present a novel relay selection algorithm in amplify-and-forward relay network with one source node, one destination, and multiple relay nodes. When the channel state information (CSI) of the first hop used for selection is outdated, closed-form expression for the system outage probability is derived. Then we propose a relay selection algorithm with assistance of the channel correlation coefficient, which aims at minimizing the system outage probability. The numerical simulation results show that the proposed strategy brings significant performance gain compared to the conventional partial relay selection strategy.
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