本文主要是以瑞利衰落信道为模型对MIMO信道容量进行计算仿真，分别在发射端不可知的信道和发射端可知的信道两种情形下，对不同天线数目的信道容量进行了仿真实现，并进行了分析比较。-This article is based on Rayleigh fading channel model for MIMO channel capacity calculation simulation, respectively, in both cases the channel channel and transmitting end transmitting end unknowable knowable, different number of antennas channel capacity simulation implementation, and We analyzed and compared.