Adaptive Power Loading for Multi-Relay OFDM Regenerative Networks with Relay Selection

被引：11

作者：

Amin, Osama ^{[1
]}

Uysal, Murat ^{[2
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

[2] Ozyegin Univ, Fac Engn, TR-34794 Istanbul, Turkey

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2012年 / 60卷 / 03期

关键词：

OFDM; cooperative diversity; power allocation; detect-and-forward relaying; relay selection; WIRELESS NETWORKS; DIVERSITY;

D O I：

10.1109/TCOMM.2011.122111.100197A

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：

In this paper, we propose an adaptive power loading algorithm for an OFDM (orthogonal frequency division multiplexing)-based multi-relay regenerative network with relay selection. The proposed scheme is based on selecting the "best" relay(s) according to different strategies and distributing the power adaptively among the subcarriers of source and selected relay(s) as to minimize an upper bound on the bit error rate (BER). Our Monte Carlo simulation results demonstrate superior performance gains through power loading with respect to conventional equal power loading schemes. The effects of imperfect channel estimation and relay location on the BER performance are further discussed.

引用

页码：614 / 619

页数：6

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