CSI对MIMO信道容量的影响研究  

Research on the Influence of CSI on MIMO Channel System Capacity

作　　者：丁巍 肖清华 

机构地区：[1]华信咨询设计研究院有限公司,浙江杭州310014

出　　处：《邮电设计技术》2017年第3期33-36,共4页Designing Techniques of Posts and Telecommunications

摘　　要：从确定性信道、随机信道和相关性信道入手,研究信道状态信息对MIMO系统容量的影响。在给出MIMO容量与天线数量、信噪比相关的前提下,基于开环与闭环系统,利用注水算法对MIMO容量进行优化。结合发射天线和接收天线之间存在的相关性,研究了MIMO容量的减小值与相关系数的关系。最后通过Matlab搭建了一个仿真平台,验证不同信道状态信息的影响情况,有利于指导实际建网中,尤其是室分系统,如何规避MIMO容量的受损,提高用户的感知。In views of determined CSI, random CSl and correlated channels, it researched the influences of different channel states information on MIMQ channel system. Based on the relation of MIMO capacity with such factors as antenna quantity and SNR, op- timization of MIMO capacity using water pouring algorithm was researched by open and close loop system, and then it gave a result of MIMO capacity decrease due to correlation index among transmitting and receiving antennas. Finally, Matlab is used to build a simulation platform, to verify the practical effects of these influences, which will help how to avoid the MIMQ capac- ity decrease in real network building especially indoor distributed system.

关 键 词：MIMO 信道状态信息 开环 闭环 相关性 

分 类 号：TN929.5[电子电信—通信与信息系统]