空间相关信道下酉空时码误码性能的数值计算  

The Numerical Computation of Error Performance for Unitary Space-Time Codes under Spatial Correlation

作　　者：郭永亮[1] 朱世华[1] 李锋[1] 

机构地区：[1]西安交通大学信息与通信工程系,西安710049

出　　处：《电子与信息学报》2008年第2期397-400,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60372055);博士点基金(20030698027)

摘　　要：该文旨在通过数值计算技术来分析信道空间相关对酉空时码的性能影响。基于成对错误概率给出了平均误比特率和误码字率的上界。同时给出了当MIMO信道独立时,该文结果与现有结果的等价性证明。Mento-Carlo仿真表明,酉空时码的误码性能随着信道空间相关的增加而恶化,并且恶化的程度直接决定于信道相关的强弱。The impact of spatial correlation on performance of unitary space-time codes is focused on in this paper. Based on pair-wise error probability the upper bound of bit and codeword error ratio are given in this paper. The proof of equivalence between the derived result and existed result is presented when the channels are independent. Mento-Carlo simulation results show that the spatial correlation results in performance loss and the amount of this loss depends on the extent of spatial correlation.

关 键 词：无线通信 空间相关 数值计算 成对错误概率 酉空时码 

分 类 号：TN911.22[电子电信—通信与信息系统]