Joint adaptive modulation scheme for two-way relay channel

被引：1
|
作者：
Zhao, Y. [1 ]
Wang, X. [1 ]
Li, S. [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Universal Wireless Commun, Beijing 100088, Peoples R China
来源：
ELECTRONICS LETTERS | 2011年 / 47卷 / 11期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
D O I：
10.1049/el.2011.0469
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：
A novel joint adaptive modulation scheme for the broadcast phase of a two-way relay channel is presented. Over Rayleigh flat fading channels, by jointly encoding and modulating the messages from both users according to each user's instantaneous channel quality, the relay can greatly improve its bits-per-symbol throughput during the broadcast phase. Also, each user can receive at the data rate decided by its instantaneous channel quality under the target average bit error ratio constraint by interference cancellation using its own information. Computer simulation shows the proposed scheme provides about 3 dB gain over the network coding based adaptive modulation scheme.
引用
收藏
页码：674 / 675
页数：2
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