Joint physical network coding and LDPC decoding for two way wireless relaying

被引:3
作者
Xu, Kui [1 ]
Lv, Zhenxing [1 ]
Xu, Youyun [1 ]
Zhang, Dongmei [1 ]
Zhong, Xinyi [1 ]
Liang, Wenwen [1 ]
机构
[1] PLAUST, Inst Commun Engn, Nanjing 210007, Jiangsu, Peoples R China
基金
中国国家自然科学基金; 美国国家科学基金会;
关键词
Joint network coding and LDPC decoding; Two-way wireless relaying channel; Wireless cooperative networks;
D O I
10.1016/j.phycom.2013.01.002
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 investigate the joint design of channel and network coding in bidirectional relaying systems and propose a combined low complexity physical network coding and LDPC decoding scheme. For the same LDPC codes employed at both source nodes, we show that the relay can decode the network coded codewords from the superimposed signal received from the BPSK-modulated multiple-access channel. Simulation results show that this novel joint physical network coding and LDPC decoding method outperforms the existing MMSE network coding and LDPC decoding method over the AWGN and complex MAC channel. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:43 / 47
页数:5
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