Antenna combining for multi-antenna multi-relay channels

被引:7
作者
Fan, Yijia [1 ]
Adinoyi, Abdulkareem
Thompson, John S.
Yanikomeroglu, Halim
机构
[1] Univ Edinburgh, Inst Digital Commun, Edinburgh EH9 3JL, Midlothian, Scotland
[2] Carleton Univ, BCWS Ctr, Dept Syst & Comp Engn, Ottawa, ON K1S 5B6, Canada
来源
EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS | 2007年 / 18卷 / 06期
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1002/ett.1231
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
In this paper we analyse the performance of multiple relay channels when multiple antennas are deployed only at relays. We apply two antenna diversity techniques at relays, namely maximum ratio combining (MRC) on receive and transmit bearnforming (TB). We show that for both decode-and-forward and amplify-and-forward relaying protocols, with K relays the network can be decomposed into K diversity channels each with a different channel gain, and that the signals can be effectively combined at the destination. We assume that the total number of antennas at all relays is fixed at N. With a reasonable power constraint at the relays, the network capacity will be lower bounded by that of N relay channels each with single antenna, and upper bounded by that of single relay channel with N antennas. Copyright (c) 2007 John Wiley & Sons, Ltd.
引用
收藏
页码:617 / 626
页数:10
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