基于空间信道模型的MIMO系统建模与仿真  

Modeling and Simulation of MIMO System Based on Spatial Channel Model

作　　者：戴幻尧[1,2] 张晓芬 李冠中 赵晶[2] 

机构地区：[1]63892部队 [2]国防科技大学电子科学与工程学院 [3]沈空指挥自动化站

出　　处：《中国电子科学研究院学报》2013年第2期125-129,137,共6页Journal of China Academy of Electronics and Information Technology

基　　金：国家自然科学基金项目(60802078)

摘　　要：研究了基于空间信道模型(SCM)的空域相关矩阵,搭建了MIMO通信信道仿真平台,同时考虑时延扩散、多普勒效应、波达方向及角度扩散等多种信道参数,通过蒙特卡罗方法计算了MI-MO系统的信道容量、空时相关性、衰落特性及功率延迟分布特性。指出了在信道的去极化作用下,无线通信系统的多径衰落可以采用极化分集和天线分集等技术进行克服,平均入射角对系统性能起着关键的作用。Studied the spatial channel model （SCM） based on the spatial correlation matrix, set MIMO communication channel simulation platform, considering the time delay spread, Doppler up the effect, the direction of arrival, angle spread and other parameters of the channel, channel capacity, space-time MIMO system when the correlation, fading, and power delay profile characteristics were calculated by using the Monte Carlo method. Points out that the depolarization channel can use polarization diversity and antenna diversity techniques to overcome muhipath fading of wireless communication system, the average incidence angle on the performance of the system plays a key role.

关 键 词：空间信道模型(SCM) 多输入多输出(MIMO) 通信信道 

分 类 号：TN914[电子电信—通信与信息系统]