双发射天线选择正交空时码分集系统性能分析  

Performance analysis of two transmit antenna selection and orthogonal space-time code diversity systems

作　　者：吕西午[1] 刘开华[1] 马永涛[1] 于洁潇[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《电波科学学报》2012年第1期117-121,共5页Chinese Journal of Radio Science

基　　金：新一代宽带无线移动通信网科技重大专项(No.2009ZX03007-003)

摘　　要：针对任意Nakagami衰落信道,分析了多输入多输出(MIMO)系统中采用双发射天线选择正交空时码的平均误码率(ASER)性能。利用矩生成函数方法,推导出采用相干检测的二进制相移键控/二进制频移键控(BPSK/BFSK)、多进制相移键控(MPSK)和多进制正交幅度调制(MQAM)的精确ASER闭合解析式,对不同条件下的系统性能做了数值仿真,验证了分析结果的正确性。Average symbol error rate（ASER）of multiple-input multiple-output（MIMO）systems employing two transmit antenna selection and orthogonal space time codes over arbitrary Nakagami fading channels is investigated in this paper.Using the moment generating function based method,we derived the exact ASER closed-form expressions of binary phase shift keying/frequency shift keying（BPSK/BFSK）,multiple phase shift keying（MPSK） and multiple quadrature amplitude modulation（MQAM） with coherent detection.Then the system performance under different conditions was evaluated through numerical simulations.The accuracy of the analytical results was verified.

关 键 词：NAKAGAMI衰落 发射天线选择 正交空时码 误码率 

分 类 号：TN911[电子电信—通信与信息系统]