Partner Selection in Cooperative Diversity Based on Delay Time
WU Chang-qi · Radio and communications technology · 2009
In cooperative diversity,how to select a partner timely and effectively is one of the key research issues,formulating a reasonable and reliable selection criterion is the key to solve this problem.Based on the time-delay characteristic of transmission path,this paper proposes to use minimum delay time among relay nodes as a criterion for partner selection.The simulation analysis of this criterion on diversity gain,SNR and transmission bit error rate performance shows that its use for partner selection can obtain a better diversity performance,lower bit error rate,avoid interference and blocking at the destination nodes due to receiving the information of relay nodes simultaneously,and it is a reliable partner selection agreement.