LIU Lei-lei, HONG Wei. Investigations on the effects of scatterers on the MIMO channel characteristics in LOS environment[J]. 2009, 30(2): 65-70.DOI:
LOS环境下散射体对MIMO信道特性的影响
摘要
针对室外视距(LOS)传输情况下的MIMO信道
结合电磁散射分析研究了典型散射体对MIMO信道性能的影响。该模型考虑了实践中常用的微带天线
并推导出在传输路径外存在圆柱电磁散射体条件下MIMO信道矩阵的解析公式
应用该公式分析了MIMO信道容量和矩阵条件数等特征参量。仿真结果表明
该模型能够描述出不同参数下信道特性的变化
对实际MIMO系统的设计有一定的参考意义。
Abstract
The effects of scattering objects on MIMO(multiple input multiple output) channel characteristics in line-of-sight(LOS) environment were investigated.The study was focused on the outdoor LOS environment but with a scatterer.The analytical mathematical expressions were derived to describe the MIMO channel matrix
where the microstrip an-tennas and 2-D cylindrical scatterer were considered.The MIMO channel capacity and the condition number of the ma-trix were investigated.From the simulation results of the MIMO channel characteristics of the model
some suggestions for practical MIMO system design are proposed.