《计算机应用研究》|Application Research of Computers

基于离散粒子群优化的多用户MIMO用户选择

Discrete PSO user selection for multiuser MIMO systems

免费全文下载 (已被下载 次)  
获取PDF全文
作者 王丽,胡捍英,张建安,郑礼
机构 1.解放军信息工程大学 信息工程学院 通信工程系,郑州 450002;2.解放军信息工程大学 电子技术学院 昆明分院,昆明 650031
统计 摘要被查看 次,已被下载
文章编号 1001-3695(2011)12-4711-03
DOI 10.3969/j.issn.1001-3695.2011.12.083
摘要 为了在降低计算复杂度的同时获得良好的性能,给出了一种基于离散粒子群优化的多用户MIMO用户选择方法。该方法基于sum-MSE预编码,所支持的用户数目取决于接收方的子流数之和,改变了传统的用户选择方法支持的用户接收天线数之和不大于发送天线数的限制。当移动台子流个数小于接收天线数时,所研究的用户选择方法可以增加同时服务的用户个数,获得更高的系统和容量。仿真结果表明,该方法能够在系统性能和复杂度之间进行良好的折中。
关键词 多用户MIMO;用户选择;离散粒子群优化
基金项目 国家“863”计划重点资助项目(20090AA011504)
国家重大专项资助项目(2009ZX03003-008)
本文URL http://www.arocmag.com/article/1001-3695(2011)12-4711-03.html
英文标题 Discrete PSO user selection for multiuser MIMO systems
作者英文名 WANG Li, HU Han-ying, ZHANG Jian-an, ZHENG Li
机构英文名 1. Dept. of Communication Engineering, Institute of Information Engineering, PLA Information Engineering University, Zhengzhou 450002, China; 2. Kunming School, Institute of Electronic Technology, PLA Information Engineering University, Kunming 650031, Chi
英文摘要 In order to decrease computation complexity as well as maintain good performance, this paper studied a user selection method for multiuser MIMO based on discrete particle swarm optimization (PSO). The proposed user selection method based on sum-MSE precoding. It showed that with this method, it could support as many users as long as the number of total substreams was no bigger than the transmit antenna number. When the user had less substreams than receive antennas, it could support more users than BD based user selection methods and achieved larger sum rate. Simulation results indicate that this method can obtain a flexible tradeoff between computation complexity and system performance.
英文关键词 multiuser MIMO; user selection; discrete particle swarm optimization
参考文献 查看稿件参考文献
 
收稿日期
修回日期
页码 4711-4713
中图分类号
文献标志码 A