适用于分布式MIMO系统的快速天线选择算法

doi:10.13190/jbupt.200703.50.135

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (3): 50-53.doi: 10.13190/jbupt.200703.50.135

适用于分布式MIMO系统的快速天线选择算法

刘慎发

北京邮电大学信息工程学院

收稿日期:2006-09-13 修回日期:2006-12-08 出版日期:2007-06-30 发布日期:2007-06-30
通讯作者: 刘慎发

Fast Antenna Selection Algorithms for Distributed MIMO Systems

LIU Shen-fa, WU Wei-ling

School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2006-09-13 Revised:2006-12-08 Online:2007-06-30 Published:2007-06-30
Contact: LIU Shen-fa

摘要/Abstract

摘要：

对分布式MIMO系统的下行发射天线选择算法进行研究，提出了基于范数和相关性的天线选择算法（NCBA）及其改进算法（NCBA-M），并与两种较低复杂度的天线选择算法进行比较，分别是基于范数的（NBA）和基于大尺度衰落的天线选择算法（LFBA）。仿真结果表明，当同一端口发送天线没有相关性时，NBA、LFBA、NCBA与最优天线选择算法性能接近。但是，当同一个端口中发送天线存在很强相关性时，NBA、LFBA算法会导致较高的容量损失，而提出的NCBA-M算法仍然接近最优选择算法的性能。

关键词: 分布式MIMO系统, 分布式天线系统, 天线选择

Abstract:

A norm and correlation based antenna selection algorithm (NCBA）and its modified version (NCBA-M) are proposed for the downlink transmit antenna selection in distributed MIMO systems. The performance of the proposed algorithms are compared with that of two low complexity antenna selection algorithms, which are norm based antenna selection algorithm (NBA) and large scale fading based antenna selection algorithm (LFBA) respectively. The simulation result shows that when no transmit antenna correlation in the same antenna port is considered, NBA, LFBA and NCBA have similar performance to the optimal antenna selection algorithms. However, NBA and LFBA result in a high capacity loss in scenarios with high correlation among transmit antennas, and NCBA-M can still approach the performance of optimal antenna selection algorithm.

Key words: distributed MIMO systems, distributed antenna systems, antenna selection

中图分类号:

TN929. 5

刘慎发. 适用于分布式MIMO系统的快速天线选择算法[J]. 北京邮电大学学报, 2007, 30(3): 50-53.

LIU Shen-fa, WU Wei-ling. Fast Antenna Selection Algorithms for Distributed MIMO Systems[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2007, 30(3): 50-53.

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适用于分布式MIMO系统的快速天线选择算法

Fast Antenna Selection Algorithms for Distributed MIMO Systems

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