高频段下新MIMO时域均衡算法仿真研究  

Novel Time Domain MIMO Equalization Algorithm for High Frequency Spectrum

作　　者：许文涛[1] 刘勃[1] 熊箭[1] 归琳[1] 

机构地区：[1]上海交通大学无线通信研究所,上海200240

出　　处：《电视技术》2011年第15期117-121,共5页Video Engineering

基　　金：国家"863"计划项目(2009AA011505);国家自然科学基金项目(60902018;60625103);高等学校学科创新引智计划项目(B07022);上海科技启明星人才计划项目(10QA1403600);上海市数字媒体处理与传输重点实验室资助项目

摘　　要：借鉴V-BLAST的MIMO检测思想,针对高频段信道提出了一种新的MIMO时域均衡算法,该算法基于特定的判决反馈均衡器结构,滤波器的系数可通过信道估计计算得到。新算法通过迭代进行分层均衡,前一层均衡出的发射信号可用于后一层均衡时的干扰消除。仿真表明,这一新算法不但计算复杂度低,还能有效地改善系统的误码性能。In this paper, a novel time dcmain MIMO equalization algorithm is proposed with respect to the high-trequency domain, which is referring to the detection algorithm of V-BLAST system. The new algorithm is based on the special structure of decision feedback equalization, the coefficients of which is obtained by channel estimation. With layered equalization, the earlier recovered transmit signals can be used for the interference cancellation of next layer equalization. The results of simulation show that the proposed algorithm can provide better symbol error rate with a relatively low calculation complexity.

关 键 词：高频段 多输入多输出系统 时域判决反馈均衡器 干扰消除 

分 类 号：TN911.5[电子电信—通信与信息系统]