改进型Jakes模型在MIMO信道建模中的运用  

Application of Improved Jakes Model in MIMO Channel Modeling

作　　者：汪成[1] 薛团结 贾林虎 马鹏辉[1] 

机构地区：[1]河海大学计算机与信息学院,江苏南京211100

出　　处：《微型电脑应用》2016年第12期57-59,共3页Microcomputer Applications

摘　　要：多入多出(MIMO)传输技术是第四代移动通信系统的关键技术之一,信道的仿真对于MIMO系统的整体设计和性能的评估起着重要作用。由于天线间隔受限及周围散射环境等的影响,天线各单元间的接收信号不可能满足理想的独立同分布。尽管经典Jakes的仿真在很大程度上得到使用,但是在多路径衰落传播的实际环境下,理论分析和仿真发现其仍然存在一些缺陷。这里对Jakes仿真模型进行改进,使其在同一衰落路径的有理想的数字相关特性及不同衰落路径之间满足相互独立,这样能够用来MIMO信道的仿真。Multiple input multiple out （MIMO） transmission technology is one of the key technologies of the fourth generation mobile communication system. Channel simulation plays an important role in the overall design and performance evaluation of MIMO sys- tem. Because of the influence of the antenna spacing and the surrounding scattering environment, The received signals from each unit of the antenna can not meet the ideal independent and identically distributed. Despite the simulation of the classical Jakes＇ model is largely used, it also have some important limitations in MIMO channels. The improved Jakes＇ model can get ideal digital correlation property in the same fading path and remain independence in the different fading path, which can be used to simulate the MIMO channel.

关 键 词：MIMO Jakes仿真模型 衰落信道 信道建模 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]