采用两条支路分集接收的相关瑞利衰落信道容量  

Capacity of Correlated Rayleigh Fading Channels Using Two-Branch Diversity Reception

作　　者：李光球[1] 

机构地区：[1]杭州电子工业学院通信工程分院,浙江杭州310037

出　　处：《电子学报》2003年第7期1018-1021,共4页Acta Electronica Sinica

基　　金：国家自然科学基金 (No 69972 0 1 4 );教育部<高等学校骨干教师资助计划>资助项目;浙江省自然科学基金 (No 60 0 0 68)

摘　　要：本文研究采用两条支路最大比合并 (MRC)或选择合并 (SC)分集接收的相关瑞利衰落信道理论容量推导恒定发射功率自适应M进制正交幅度调制 (M QAM)的频谱效率 ,并将它们与独立同分布瑞利信道理论容量进行比较 ,其结果对收发信机之间无视距分量路径。Closed-form solutions for the correlated Rayleigh fading channel capacity under maximum ratio combining (MRC)or selection combining (SC)diversity reception are obtained. A comparison between the correlated Rayleigh fading channel capacity and independent Rayleigh fading channel capacity is presented. The performance of constant-power adaptive M-ary quadrature amplitude modulation (M-QAM) schemes over correlated Rayleigh channels under MRC or SC diversity reception is investigated. Closed-form expressions for spectral efficiency assuming perfect channel estimation and negligible time delay are derived.

关 键 词：相关瑞利衰落信道 信道容量 分集接收 最大比合并 选择合并 

分 类 号：TN911.2[电子电信—通信与信息系统]