摘要
Massive MIMO也称为大规模多输入多输出系统,是通过在基站端布置上百根的天线,利用天线数的增多来提升通信效率,进而获得极大的增益。在Massive MIMO系统中,影响系统性能的一个主要问题是导频复用造成的导频污染,文章对Massive MIMO信道模型和导频污染进行分析,深入研究了导频分配技术,并通过仿真验证了其抑制导频污染的可行性。
Mass MIMO also known as large-scale multiple-input multiple-output system,is to arrange hundreds of antennas at the base station,using the increase of the number of antennas to improve the communication efficiency,and then get a great gain.In the mass MIMO system,one of the main problems that affect the performance of the system is pilot pollution caused by pilot multiplexing.This paper analyzes the channel model and pilot pollution of the mass MIMO system,deeply studies the pilot allocation technology,and verifies its feasibility of suppressing pilot pollution through simulation.
作者
杨济海
刘兴
杨涛
薛鹏
Yang Jihai;Liu Xing;Yang Tao;Xue Peng(State Grid Jiangxi Information&Telecommunication Company,Nanchang 330096,China;School of Electrical Engineering,Northeast Electric Power University,Jilin 132012,China)
出处
《无线互联科技》
2020年第4期16-17,共2页
Wireless Internet Technology
