| 联合LDPC码和网络编码的协作通信技术 |
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| 引用本文： | 朱联祥,行彦辉,李祥,代改荣,王朝璋.联合LDPC码和网络编码的协作通信技术[J].重庆邮电大学学报(自然科学版),2011,23(3):262-265. |
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| 作者姓名： | 朱联祥 行彦辉 李祥 代改荣 王朝璋 |
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| 作者单位： | 重庆邮电大学 信号与信息处理重庆市重点实验室，重庆 400065 |
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| 基金项目： | 信号与信息处理重庆市市级重点实验室建设项目（CSTC，2009CA2003）；重庆市科委自然科学基金项目（2008BB2087）； 重庆市教委自然科学基金项目（KJ080502） |
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| 摘 要： | 结合信道编码和网络编码的思想,提出了一种在两用户协作情况下联合LDPC(low-density parity-check)码和网络编码的协作分集方案,该方案在接收端通过基于整体H矩阵的置信传播算法实现LDPC码和网络编码的联合译码,并对该方案在瑞利慢衰落信道下的性能进行了MATLAB仿真.仿真结果表明:与编码协作和不协...
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| 关 键 词： | 网络编码 协作分集 低密度校验码(LDPC) 联合译码 |
| 收稿时间： | 9/5/2010 12:00:00 AM |
Joint LDPC codes and network coding cooperative communication technology |
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| ZHU Lian-xiang,XING Yan-hui,LI Xiang,DAI Gai-rong,WANG Zhao-zhang.Joint LDPC codes and network coding cooperative communication technology[J].Journal of Chongqing University of Posts and Telecommunications,2011,23(3):262-265. |
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| Authors: | ZHU Lian-xiang XING Yan-hui LI Xiang DAI Gai-rong WANG Zhao-zhang |
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| Institution: | Chongqing Key Laboratory of Signal and Information Processing (CQKLS&IP), Chongqing University of Posts and Telecommunications, Chongqing, 400065, China |
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| Abstract: | Combining the idea of channel coding and network coding, a joint LDPC codes and network coding cooperative diversity scheme in the scenarios of two-user collaboration is proposed in this paper. The joint decoding of LDPC codes and network coding is implemented by using belief propagation algorithm on its overall H matrix in the receiver. The bit error rate performance of the system in Rayleigh slow fading channel was verified through MATLAB simulation, which shows a significant improvement of the proposed scheme over the non collaboration and coding cooperation systems. |
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| Keywords: | network coding cooperative diversity low-density parity-check(LDPC) codes joint decoding |
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