计算机技术与发展2016，Vol.26Issue(9)：154-157,4.DOI:10.3969/j.issn.1673-629X.2016.09.034
基于截断多项式展开的大规模MIMO预编码
A Precoding Algorithm Based on Truncated Polynomial Expansion for Massive MIMO System
摘要
Abstract
The implementation of precoding algorithm for massive Multiple-Input Multiple-Output ( MIMO) system is discussed. The computational precoding complexity increases with its dimensions in MIMO system. In view of this problem,a precoding scheme based on the truncated polynomial expansion is proposed and the superiority of it is analyzed compared with the conventional regularized zero forc-ing precoding. Using the random matrix theory,the optimal precoding weights coefficient is derived for tradeoff between system through-put and precoding complexity. Under different channel conditions,the simulation shows that the average achievable rate will increase infi-nitely approaches the regularized zero forcing precoding in a certain order. The complexity of the proposed algorithm does not change with the increase of the number of users and antennas,which is easy to realize.关键词
大规模多输入多输出/预编码/截断多项式展开/正则迫零Key words
massive MIMO/precoding/truncated polynomial expansion/regularized zero-forcing分类
信息技术与安全科学引用本文复制引用
李波..基于截断多项式展开的大规模MIMO预编码[J].计算机技术与发展,2016,26(9):154-157,4.基金项目
陕西省科学技术研究发展计划项目(2013JC2-17,2013JK1163) （2013JC2-17,2013JK1163）
