多输入多输出宽带时变信道分布散射模型研究  

Distributed scattering model for MIMO wideband and time-variation channel

作　　者：张蕊[1] 张利军[1] 原梦钰[2] 康士峰[1] 赵振维[1] 

机构地区：[1]中国电波传播研究所,电波环境特性及模化技术重点实验室,山东青岛266107 [2]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电波科学学报》2011年第1期73-78,共6页Chinese Journal of Radio Science

基　　金：国家科技重大专项新一代宽带无线移动通信网(2009ZX03007-003-02)

摘　　要：基于多输入多输出(MIMO)窄带分布式散射模型和Kronecker信道模型,导出了宽带分布式散射模型的信道冲激响应矩阵,并利用蒙特卡洛方法和离散傅里叶变换,分别得到随机的时域信道矩阵和频域信道矩阵,建立了MIMO宽带分布式散射模型。在此基础上,通过对复高斯白噪声进行多普勒滤波的方法,实现了对MI-MO时变、宽带信道时域衰落特性的仿真。上述结果可用于分析和评估MIMO宽带移动通信系统的性能。The channel impulse response matrix formula for multiple-input-multiple-output（MIMO） wideband distributed scattering model is derived based on narrowband distributed scattering model and Kronecker model, and random channel matrices in time domain and frequency domain are obtained by using of Monte Carlo methods and discrete Fourier transform respectively to develop a MIMO distributed scattering model for wideband channel. On this basis, the simulation of time-do- main fading characteristics for MIMO wideband and time-variation channel is obtained by filtering uncorrelated complex white Gaussian processes. The results in this paper can be used for analysis and evaluation of MIMO wideband mobile communication system performance.

关 键 词：MIMO 分布式散射模型 宽带 时变 信道容量 多普勒滤波 

分 类 号：TN929.5[电子电信—通信与信息系统]