| 基于联合迭代译码的LDPC编码协作系统 |
| |
| 引用本文： | 张顺外,仰枫帆,宗鹏.基于联合迭代译码的LDPC编码协作系统[J].西南交通大学学报,2011,46(3):469-474,487. |
| |
| 作者姓名： | 张顺外 仰枫帆 宗鹏 |
| |
| 作者单位： | 1. 南京航空航天大学电子信息工程学院,江苏,南京,210016
2. 南京航空航天大学航天学院,江苏,南京,210016 |
| |
| 基金项目： | 航空基金资助项目，东南大学移动通信国家重点实验室开放研究基金资助项目，江苏省自然科学基金资助项目 |
| |
| 摘 要： | 为提高系统性能,提出了分别采用正规LDPC(low-density parity-check code)和非正规系统LDPC码的编码协作通信系统,并给出了用于源节点和中继点的双LDPC码的构造方法.导出了基于双LDPC码的总体校验矩阵,据此校验矩阵给出了相应的双层结构Tanner图,目的点采用基于该双层结构Tanner图的联合迭代译码新算法译码.理论分析和数值模拟表明,在相同条件下,理想LDPC编码协作系统的性能明显优于编码非协作系统的性能,当误比特率为10-5、译码迭代10次时,理想正规LDPC码和非正规系统LDPC码编码协作系统较相应的编码非协作系统分别具有1.0和0.6 dB增益.
|
| 关 键 词： | 协作技术 LDPC码 双层Tanner图 联合迭代译码 |
LDPC-Coded Cooperative System Based on Joint Iterative Decoding |
| |
| ZHANG Shunwai,YANG Fengfan,ZONG Peng.LDPC-Coded Cooperative System Based on Joint Iterative Decoding[J].Journal of Southwest Jiaotong University,2011,46(3):469-474,487. |
| |
| Authors: | ZHANG Shunwai YANG Fengfan ZONG Peng |
| |
| Institution: | ZHANG Shunwai1,YANG Fengfan1,ZONG Peng2 (1.College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China,2.College of Astronautics,China) |
| |
| Abstract: | In order to improve the performances of a communication system,new coded cooperative communication schemes employing regular LDPC(low-density parity-check code) and irregular systematic LDPC codes respectively were proposed,and the methods of constructing the double LDPC codes used by source and relay nodes were given.The overall parity-check matrix corresponding to the double LDPC codes was deduced,then the bilayer Tanner graph of the deduced parity-check matrix was given.A new joint iterative decoding alg... |
| |
| Keywords: | cooperation technique LDPC(low-density parity-check code) bilayer Tanner graph joint iterative decoding |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
