相关MIMO Nakagami衰落信道上MQAM WCDMA系统的性能分析

Performance analysis of MQAM WCDMA systems in correlated MIMO Nakagami fading channels

使用矩生成函数(MGF)方法,推导相关MIMO Nakagami衰落信道上WCDMA系统下行链路中采用组合二维瑞克(2DRAKE)接收机和发送分集的M进制正交幅度调制(MQAM)的平均误符号率精确解析表达式。利用获得的解析表达式,研究天线阵结构(如发射天线和接收天线的数目、天线间的距离)和工作环境(如衰落系数、角度扩展、多径延迟轮廓等)对MQAM WCDMA系统性能的影响。

Using the moment generating function-based analysis average symbol-error-rate （SER） of M-ary quadrature amplitude and two-dimensional （2-D） RAKE receiver on the approach, we present new closed-form formulas for the exact modulation （MQAM） in combination with transmit diversity downlink of a WCDMA system in correlated multiple-input-multiple-output （MIMO） Nakagami fading channels in this paper. We express the average SER in terms of Lauricella＇s multivariate hypergeometric function. The results can be used to evaluate the impact of the array configuration and the operating environment parameters on the SER performance of the MQAM WCDMA system.