Performance of OFDM-based dual-hop amplifily-and-forward relaying

被引：35
|
作者：
Suraweera, Himal A.
Armstrong, Jean
机构：
[1] Victoria Univ, Ctr Telecommun & Microelect, Melbourne, Vic 8001, Australia
[2] Monash Univ, Dept Elect & Comp Syst Engn, Melbourne, Vic 3800, Australia
来源：
IEEE COMMUNICATIONS LETTERS | 2007年 / 11卷 / 09期
关键词：
OFDM; amplify-and-forward relaying; multihop transmission; Rayleigh fading; bit error rate;
D O I：
10.1109/LCOMM.2007.070639
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, the end-to-end BER performance of a dual-hop OFDM-based relay system is investigated. The relay terminal operates in the Amplify-and-Forward (AF) mode. We derive the bit error rate (BER) of AF relaying with average power scaling (APS) constraint valid for source-relay link high signal-to-noise ratio conditions. We also study a frequency diversity technique that improves the performance of single antenna AFAPS relaying. The theoretical BER expressions are verified by computer simulations for a 4-QAM modulated OFDM system.
引用
收藏
页码：726 / 728
页数：3
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