On optimum MIMO with antenna selection

被引：23

作者：

Blum, RS ^{[1
]}

Winters, JH ^{[1
]}

机构：

[1] AT&T Labs Res, Wireless Syst Res Dept, Middletown, NJ 07748 USA

来源：

2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS | 2002年

关键词：

D O I：

10.1109/ICC.2002.996881

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Wireless communication systems with transmit and receive antenna arrays are studied when antenna selection is used. A case with very limited feedback of information from the receiver to the transmitter is considered, where the only information fed back is the selected subset of transmit antennas to be employed. It is shown that the optimum signaling, for largest ergodic capacity of a single isolated link with given interference and antenna selection, is generally different from that which is optimum without antenna selection for some range of signal-to-noise ratios (SNRs). In cases with interference, the improvement obtained from using the true optimum signaling approach tends to increase for this range of SNRs. Further the optimum approach for cases without antenna selection tends to be optimum in fewer cases as interference power is increased.

引用

页码：386 / 390

页数：5

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