基于Matlab的3D MIMO信道空间相关性仿真  

Simulation on Spatial Correlation of Channel for 3D MIMO Based on Matlab

作　　者：刘燕莉[1] 景小荣[1,2] 于秀兰[1,2] 张祖凡[1,2] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]移动通信技术重庆市重点实验室,重庆400065

出　　处：《计算机仿真》2013年第12期187-190,268,共5页Computer Simulation

基　　金：国家科技重大专项(2013ZX03003008-005);重庆市然科学基金(2010BB2417;2013JJB0114);重庆市教委科研项目(KJ110526)

摘　　要：研究三维天线优化设计问题,采用传统MIMO技术的小区边缘用户,数据传输率远远低于3GPP LTE标准所规定的峰值速率。为此,ARTIST4G工作组提出三维多输入多输出(3-Dimension Multiple Input Multiple Output,3D MIMO)技术。提出用WINNER簇延迟线(Clustered Delay Line,CDL)模型,对3D MIMO信道进行建模。针对非视距传播环境,从理论上推导出3D MIMO信道空间相关函数的解析表达式,再利用Matlab平台对3D MIMO信道空间相关特性及对应的波数谱进行数值仿真,并分析了空间相关性与天线间距、离开方位角(Azimuth Angle of Departure,AAoD)、离开仰角(Elevation Angle of Departure,EAoD)及天线倾斜角的关系。实验结果表明,重建的模型能够有效地表征3D MIMO信道的空间特性。The data transmission rate of users located at cell edge using conventional MIMO technology is far below the peak rate specified by the 3GPP LTE standard, so the ARTIST4G working group proposed the 3 - Dimension Multiple Input Multiple Output（3D MIMO） technology. Based on the WINNER- CDL model,the 3D MIMO channels were firstly modeled in the paper, then the analytical spatial correlation function of the 3D MIMO channel was derived theoretically for the none - line - of - sight environments. Finally, the spatial correlation of 3 D MIMO channel and the corresponding wave number spectrum was studied by numerical simulations based on Matlab, and the rela- tionship between the spatial correlation, the antenna spacing, azimuth angle of departure （AAoD） and elevation an- gle of departure （EAoD） and the tilt angle of the antenna was analyzed. The overall results show that the model can characterize the spatial correlation of 3D MIMO channel effectively

关 键 词：三维多入多出 簇延迟线 空间特性 波数谱 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]