STBC-OFDM系统中空时多用户检测算法的研究  

Research of Space-time Multiuser Detection Algorithm Based on STBC-OFDM System

作　　者：王丽君[1] 

机构地区：[1]陕西国际商贸学院,陕西咸阳712046

出　　处：《山西电子技术》2012年第3期36-38,61,共4页Shanxi Electronic Technology

基　　金：陕西国际商贸学院院级科研基金项目

摘　　要：针对STBC-OFDM系统,分析了STBC-OFDM系统的MMSE检测算法和ML检测算法。考虑到最大似然多用户检测算法实现的复杂性,研究了将MMSE检测算法和ML-PDP检测算法相结合进行多用户联合检测,对其进行了仿真,仿真结果表明MMSE-ML联合检测算法与MMSE检测算法相比,计算量有所增加,但可以较大程度地提高检测系统的误码性能。Emphasizing on STBC-OFDM system,this paper analyzes the MMSE detection algorithm and ML detection algorithm.Taking into account to achieve the complexity of the maximum-likelihood multi-user detection algorithm,it studies the multi-user detection algorithm which is the combination of the MMSE detection algorithm and the ML-PDP detection algorithm.Simulation results show that the combined MMSE-ML detection algorithm compared with the MMSE detection algorithm is increasing in calculation,but also can be improved to a greater extent of the error detection system performance.

关 键 词：STBC-OFDM系统 MMSE检测算法 ML检测算法 MMSE-ML联合检测算法 

分 类 号：TN919.3[电子电信—通信与信息系统]