室内双极化MIMO系统信道特性  

Channel Characteristics of Dual-Polarized MIMO System for Indoor Scenario

作　　者：李艺伟[1] 汤璇[1] 林邦姜[1] 张士灏 LI Yi-wei TANG Xuan LIN Bang-jiang ZHANG Shi-hao(Quanzhou Institute of Equipment Manufacturing, Haixi Institutes, Chinese Academy of Sciences, Fujian Quanzhou 362200, Chin)

机构地区：[1]中国科学院海西研究院泉州装备制造研究所,福建泉州362200

出　　处：《北京邮电大学学报》2016年第6期53-56,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61501427;61601439)

摘　　要：为了研究双极化多输入多输出(MIMO)系统的信道特性,进行了室内信道测量实验,通过Elektrobit多维信道探测器获得视距和非视距场景下的信道冲激响应.对功率时延谱、均方根时延扩展、信道容量和交叉极化鉴别率等信道参数进行分析,得出电波在水平极化、垂直极化和双极化下不同的传播机理.仿真结果表明,双极化MIMO系统有利于多径分量的产生,相比于单极化系统有显著的信道容量优势.仿真结果对于室内MIMO系统的设计以及系统级和链路级仿真有一定的参考价值.For research on channel characteristics of dual-polarized multiple input multiple output（ MIMO） system,the channel measurements were carried out using Elektrobit multi-dimensional radio channel sounder for line-of-sight and non-line-of-sight routes in indoor office. The channel characteristics were investigated by the power delay profile,root mean square delay spread,channel capacities and cross polarization discrimination. It can be found that the parameters have different propagation behaviors in horizontal polarized,vertical polarized and dual-polarized case. The simulation results show that dual-polarized MIMO system will increase the multipath components,and the channel capacity can be significantly improved compared to single-polarized. The results in this paper are critical for indoor MIMO system design as well as for link and system level simulations.

关 键 词：多输入多输出信道 双极化 传播机理 

分 类 号：TN011[电子电信—物理电子学]