| LDPC码译码算法的性能分析 |
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| 引用本文： | 胡君萍,陈宁. LDPC码译码算法的性能分析[J]. 武汉理工大学学报(信息与管理工程版), 2006, 28(7): 71-74 |
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| 作者姓名： | 胡君萍 陈宁 |
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| 作者单位： | 武汉理工大学,信息工程学院,湖北,武汉,430070 |
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| 摘 要： | LDPC码是一种优良的差错控制编码.鉴于其译码算法的复杂度直接影响到编码的应用前途,阐述了LDPC码的几种译码算法.重点介绍了基于Tanner图结构的BP算法,然后分析和比较了由FOSSORIER提出的BP-based算法和CHEN J提出的两种改进算法-Normalized BP-based、offset BP-based算法以及最优译码算法在AWGN信道下的性能特性.
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| 关 键 词： | LDPC码 BP算法 AWGN信道 |
| 文章编号： | 1007-144X(2006)07-0071-04 |
| 修稿时间： | 2006-05-15 |
Performance Analysis of LDPC Decoding Algorithm |
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| Hu Junping,Chen Ning. Performance Analysis of LDPC Decoding Algorithm[J]. Journal of Wuhan University of Technology(Information & Management Engineering), 2006, 28(7): 71-74 |
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| Authors: | Hu Junping Chen Ning |
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| Abstract: | LDPC code is an excellent type of error control codes. For the complexity of decoding algorithm has a direct influence on the application future of this code,some decoding algorithms of LDPC are explained and the BP algorithm based on the structure of Tanner graph is highlighted.The BP-based algorithm presented by Fossorier and the two kinds of improved algorithms:Normalized BP-based,Offset BP-based presented by J.Chen are studied.The performances of these decoding algorithms with the best decoding algorithm over AWGN channel are analyzed are compared. |
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| Keywords: | LDPC BP algorithm AWGN channel |
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