摘要
本文重点对多输入多输出（MIMO）无线通信系统的信道模型、空时分组码（Alamouti）以及垂直分层空时码（V—BLAST）空间复用技术进行了仿真分析。首先利用Matlab在信道建模中实现了基于瑞利环境下的信道容量仿真图，同时仿真并分析了天线相关性对信道容量的影响；然后进行了Alamouti方案和最大比接收合并（MRRC）之间的仿真分析；最后对V—BLAST系统中的线性检测（ZF）算法和最小均方误差（MMSE）算法做了仿真比较，从而得出V—BLAST系统优于非V—BLAST体系下的误码性能。
This paper focuses on the simulation and analysis of the channel model in MIMO wireless system, Alam- outi STBC and V - BLAST space multiplexing technology. Firstly, using Matlab, the paper implements the simula- tion of the channel capacity which is based on the situation of Rayleigh, at the same time simulates the effect of the channel capacity which is caused by antenna correlation. Secondly, it accomplishes simulation analysis between the Alamouti STBC and MRRC （Maximal -Ratio Receiver Combining）. Finally, it fulfils the comparison of simulation of the BER performance between the ZF （Zero Forcing） algorithm and the MMSE （ Minimum Mean Square Error） algorithm, both of which are embedded in the scheme of V - BLAST, the result shows that the V - BLAST systemis better than that of non V - BLAST system.
出处
《西安铁路职业技术学院学报》
2014年第4期1-3,共3页
Journal of Xi’an Railway Vocational & Technical Institute
