Base station transmitting antenna arrays for multipath environments

被引：76

作者：

Gerlach, D

Paulraj, A

机构：

[1] Information Systems Laboratory, Department of Electrical Engineering, Stanford University, Stanford

来源：

SIGNAL PROCESSING | 1996年 / 54卷 / 01期

关键词：

adaptive antenna; wireless communication; mobile communication; feedback; forward link;

D O I：

10.1016/0165-1684(96)00093-X

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Adaptive transmitting antenna arrays can increase the capacity of mobile radio networks by reusing a channel among several users. To reuse bandwidth, a transmitting antenna array can exploit feedback information from the mobile receivers in order to track changes in the multipath environment. When the mobile is moving rapidly, the required feedback rates can become significant. We present a new method for transmission beamforming, which, by exploiting the subspace structure present in the spatial channel, requires much lower feedback data rates than previous methods. We consider antenna arrays at the base only, and the mobile has a single omnidirectional antenna.

引用

页码：59 / 73

页数：15

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