认知无线电网络中协同中继的中断性能分析  

Outage Performance Analysis of Cooperative Relay in Cognitive Radio Networks

作　　者：袁福[1] 郑林华[1] 袁继兵[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,长沙410073

出　　处：《系统仿真学报》2010年第11期2715-2718,共4页Journal of System Simulation

摘　　要：认知无线电网络中认知用户可以采用协同中继技术提高通信的可靠性,增加频谱效率。对认知无线电网络中采用分布式空时编码和基于解码转发协议下的认知用户中断性能进行了分析,给出了中断概率的一个上下界,得出中断概率的上下界与认知用户频谱效率、中继数量和检测概率的关系,给出了数值仿真。To increase the reliability and spectrum efficiency of cognitive user in the cognitive radio networks, cooperative relay technique can be exploited. The outage performance of a cognitive user based on the distributed space-time coded and decoded-forward protocol was analyzed. The upper and lower bounds of outage were given, and then the correlations between the bounds and spectrum efficiency, the number of relays and detection probability of primary users were discussed. The numerical simulation was given, and their results were analyzed.

关 键 词：认知无线电 协同中继 解码转发 中断概率 

分 类 号：TN929.5[电子电信—通信与信息系统]