发射天线选择空时分组码的误符号率分析  

Symbol error probability analysis for transmit antenna selection using orthogonal space-time block codes

作　　者：李光球[1] 江林超[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：《电波科学学报》2010年第2期291-296,共6页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(No.60772067);浙江省教育厅科技计划重点项目(20060268)

摘　　要：研究瑞利衰落信道上使用发射天线选择和空时分组编码的多输入多输出系统的误码性能。使用矩生成函数法和Apell超几何函数、Lauricella多变量超几何函数,推导采用相干检测的M进制相移键控(MPSK)和广义矩形M进制正交幅度调制(GR-MQAM)的平均符号错误概率(SEP)的精确闭合表达式。数值计算结果表明:增加发射天线或/和接收天线数可以改善MIMO瑞利衰落上MPSK和GR-MQAM的平均SEP性能。Error rate performance of multiple-input multiple-output（MIMO）systems employing transmit antenna selection and orthogonal space-time codes（STBCs）over Rayleigh fading channels is investigated in this paper.By using the moment generating function-based analysis approach,Apell hypergeometric function and Lauricella＇s multivariate hypergeometric function,we derived the exact closed-form expressions for the average symbol error probability（SEP）for M-ary phase shift keying（MPSK）and general rectangular M-ary quadrature amplitude modulation（GR-MQAM）with coherent detection.The numerical results show that the average SEP performance of MPSK and GR-MQAM over MIMO Rayleigh fading channels can be improved with the increase of the number of transmit antennas and/or receive antennas.

关 键 词：天线选择 多输入多输出系统 空时分组码 正交幅度调制 符号错误概率 

分 类 号：TN911[电子电信—通信与信息系统]