空时MIMO无线通信系统随机信道模型的仿真研究与实现  

Simulation study of channel model for MIMO radio communication

作　　者：杜江[1] 彭启琮[1] 

机构地区：[1]电子科技大学通信与信息工程学院,四川成都610054

出　　处：《系统工程与电子技术》2004年第10期1518-1522,共5页Systems Engineering and Electronics

摘　　要：对智能天线、空间分集和MIMO OFDM等多天线技术的信道传输特征进行了分析,提出了一种用于第三代及多天线MIMO无线通信系统的信道模型。该信道模型不仅涉及到接收信号的功率水平分布和多普勒频移,还考虑了信道衰落系数间的相关性以及智能天线阵列的几何分布和到达角度等特性。用3GPP通信协议基于Matlab实现了一个完整的MIMO信道仿真器。最后,通过实验验证了不同无线通信环境下MIMO模拟的信道容量与Shan non理论容量的一致性,从而说明了该仿真器的有效性和实用性。The experimental and theoretical research results on space-time MIMO channel characteristics are investigated and an MIMO channel (simulator) is developed. The simulator can generate various MIMO channel models complying with ITU standards and antenna arrays with specific geometric configuration, which can be used as a testbed for analysis of algorithms (and performance) for MIMO receivers. The computer simulation results demonstrate that the Shannon capacity of the channel is highly dependent on the considered enviroments, through which the feasibbility of the simulator is (validated.)

关 键 词：MIMO信道 智能天线 空间分集 信号处理 

分 类 号：TN911[电子电信—通信与信息系统]