Ergodic capacity of switch-and-examine combining under flat Rayleigh fading channels  

作　　者：ZHAO Shuang YAO Wen-bin YANG Hong-wen WANG Ya-feng 

机构地区：[1]Wireless Communication Center, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]China Mobile Design Institute, Beijing 100876, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2009年第1期44-46,63,共4页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (60602060);the Hi-Tech Research and Development Program of China (2007AA01Z211).

摘　　要：Switch-and-examine combining （SEC） is an interesting diversity technique that is simpler than selection combining （SC）, whereas its performances is similar in terms of bit error rate （BER） and diversity order. As ergodic capacity is also a key performance index in modem wireless systems, this article analyzes the ergodic capacity of the SEC system. The numerical results show that the ergodic capacity of SEC with optimal threshold is similar to that of SC for arbitrary number of diversity branches.Switch-and-examine combining （SEC） is an interesting diversity technique that is simpler than selection combining （SC）, whereas its performances is similar in terms of bit error rate （BER） and diversity order. As ergodic capacity is also a key performance index in modem wireless systems, this article analyzes the ergodic capacity of the SEC system. The numerical results show that the ergodic capacity of SEC with optimal threshold is similar to that of SC for arbitrary number of diversity branches.

关 键 词：ergodic capacity diversity technique SEC SC 

分 类 号：TN911.22[电子电信—通信与信息系统] TP311.12[电子电信—信息与通信工程]