Capacity of the isotropic fading vector channel with quantized channel direction feedback

被引：0

作者：

Jafar, SA ^{[1
]}

Srinivasa, S ^{[1
]}

机构：

[1] Univ Calif Irvine, Irvine, CA 92697 USA

来源：

CONFERENCE RECORD OF THE THIRTY-EIGHTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 | 2004年

关键词：

D O I：

暂无

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：

We explore optimality of beamforming for a vector channel with multiple transmit antennas at the base station and a single antenna at the mobile receiver. Perfect channel knowledge is assumed to be available at the receiver while the transmitter has only partial knowledge of the direction of the user's channel vector based on quantized direction feedback. We introduce necessary and sufficient conditions for the optimality of beamforming for the quantized direction feedback communication system. Using the conditions, we prove the optimality of beamforming for some particular cases of quantized direction feedback.

引用

页码：1178 / 1182

页数：5

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