Bandwidth Efficient Cooperative Diversity Scheme Based on Relaying Superposition Symbols

被引：0

作者：

Cao, Mingwei ^{[1
]}

Bi, Guangguo ^{[1
]}

Jin, Xiufeng ^{[1
]}

机构：

[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China

来源：

2008 11TH IEEE SINGAPORE INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS (ICCS), VOLS 1-3 | 2008年

关键词：

Cooperative diversity; bandwidth efficiency; superposition symbols;

D O I：

10.1109/ICCS.2008.4737383

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A bandwidth efficient three-user cooperative diversity scheme based on relaying superposition symbols is proposed. Each user has two partners and each partner relays superposition symbols of the other two users instead of repetition. Thus, the bandwidth efficiency is improved compared to the baseline decode-and-forward cooperative diversity scheme in which each user retransmits its partner's information by employing repetition coding. The proposed scheme can also offer diversity order of two. Then, a new constellation labeling for the superposition 8PSK modulation to exploit the symbol mapping diversity is designed and it is a simple way to obtain a gain of about 2 dB.

引用

页码：1249 / 1253

页数：5

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