相关衰落信道上广义矩形MQAM的性能  

Performance of General Rectangular QAM over Correlated Fading Channels

作　　者：江林超[1] 李光球[1] 

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《通信技术》2009年第3期60-61,64,共3页Communications Technology

基　　金：浙江省自然科学基金青年科技人才培养基金资助项目(R105473);浙江省教育厅重点科研基金资助项目(20060268)

摘　　要：研究相关多输入多输出Nakagami衰落信道上的正交空时分组编码广义矩形M进制正交幅度调制(MQAM)方案,使用矩生成函数方法推导其平均误符号率(SEP)的精确闭合表达式。比较了独立同分布Nakagami衰落信道上和相关Nakagami衰落信道上广义矩形MQAM的平均SEP性能。数值计算结果阐明Nakagami衰落系数和天线间的相关性对正交空时分组编码广义矩形MQAM平均SEP性能的影响。Exact expressions for the average symbol error probability （SEP） of orthogonal space-time block coding with general rectangular Mary quadrature amplitude modulation（MQAM） over correlated multiple-input multiple-output（MIMO） Nakagami-m fading channels are derived by using the moment-generating function-based analysis approach. The average SEPs of general rectangular MQAM over independent and correlated Nakagami fading channels are also presented. Numerical results have proved the effects of Nakagami fading parameter and correlation between the antennas on the average SEPs of general rectangular MQAM.

关 键 词：NAKAGAMI衰落 正交幅度调制 正交空时分组码 误符号率 

分 类 号：TN911.4[电子电信—通信与信息系统]