Joint LDPC and Physical Network Coding with Power Allocation for Two Way Wireless Relaying

摘要：

In this paper, we investigate the joint design of channel and network coding with power allocation in bi-directional relaying systems and propose a combined low complexity LDPC and physical network coding scheme. For the same LDPC codes employed at both source nodes, we show that the relay can decodes the network coded code-words from the superimposed signal received from the BPSK-modulated multiple-access channel. The outage probability analysis shows that the bidirectional relaying system obtains the optimal performance while the total transmit power of the two source nodes equal to the relay node. Simulation results shown that the proposed joint LDPC and physical network coding method outperforms the existing MMSE based LDPC and network coding method over AWGN and complex MAC channel.

关键词： Joing LDPC and Physical Network Coding Two Way Wireless Relaying Channel Wireless Cooperative Networks Outage Probability.

作者: Kui Xu Youyun Xu Wenwen Liang Dongmei Zhang Zhenxing Lv

作者单位: Institute of Communications Engineering, PLAUST Nanjing, China Institute of Communications Engineering, PLAUSTNanjing, China

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）