A Decode-and-Forward Scheme for LDPC Coded Three-Way Relay Fading Channels

被引：0

作者：

YE Xia ^{[1
]}

GAO Feifei ^{[2
]}

机构：

[1] Department of Computer Science & Information Management,Wenzhou Medical University

[2] Department of Automation, Tsinghua University, State Key Lab of Intelligent Technologies and Systems, Tsinghua National Laboratory for Information Science and Technology (TNList)

来源：

China Communications | 2015年 / 12卷 / 08期

基金：

中国国家自然科学基金;

关键词：

three-way relay channel; physical layer network coding; LDPC codes; decodeand forward;

D O I：

暂无

中图分类号：

TN911.22 [信道编码理论];

学科分类号：

070104 ; 081101 ;

摘要：

In this paper a low-density pairwise check(LDPC) coded three-way relay system is considered, where three user nodes desire to exchange messages with the help of one relay node. Since physical-layer network coding is applied, two time slots are sufficient for one round information exchange. In this paper, we present a decode-and-forward(DF) scheme based on joint LDPC decoding for three-way relay channels, where relay decoder partially decodes the network code rather than fully decodes all the user messages. Simulation results show that the new DF scheme considerably outperforms other common schemes in three-way relay fading channels.

引用

页码：46 / 54

页数：9

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