摘要
文章分析了MIMO技术的特点,构建了MIMO系统总体框图,分析了MIMO的系统容量在有无信道状态信息下的信道容量。使用MATLAB对MIMO系统进行建模仿真,通过对其在有无信道状态信息情况下,分别进行了MIMO系统平均容量、在10%中断容量下的信道容量仿真分析。仿真结果表明:MIMO系统在低信噪比时有信道状态信息的容量更大,并且随着天线数目的增加而扩大。
This paper first analyzes the characteristics of MIMO technology,constructs a general block diagram of MIMO system,and analyzes the channel capacity of MIMO system capacity with or without channel state information.The MIMO system was modeled and simulated by MATLAB.The average capacity of MIMO system and the channel capacity under 10%outage capacity are simulated and analyzed respectively with and without channel state information.The simulation results show that the MIMO system has a larger capacity of channel state information at low signal noise ratio and increases with the increase of antenna number.
出处
《大众科技》
2020年第8期5-7,11,共4页
Popular Science & Technology
基金
2020年度湖南省自然科学基金面上项目(2020JJ4327)
2018年度湖南省教育厅科学研究一般项目(18C1063)
湖南科技学院应用特色学科建设项目。
