| AWGN信道基于高阶调制的LDPC码译码算法研究 |
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| 引用本文： | 钟竞东,梁钊. AWGN信道基于高阶调制的LDPC码译码算法研究[J]. 五邑大学学报(自然科学版), 2006, 20(2): 28-32 |
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| 作者姓名： | 钟竞东 梁钊 |
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| 作者单位： | 五邑大学,信息学院,广东,江门,529020 |
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| 基金项目： | 广东省自然科学基金;广东省江门市科技计划 |
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| 摘 要： | 介绍了AWGN信道基于高阶调制的软解调算法，研究了LDPC码的和一积译码算法原理，并对高阶调制的和一积算法及其简化算法进行了研究与性能仿真．仿真结果表明采用高阶调制的λ-min和-积简化算法译码在降低了译码复杂度的同时可实现高速率数据的可靠传输。
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| 关 键 词： | QAM调制 LDPC码 Gray影射 和-积算法 二部图 λ-min算法 |
| 文章编号： | 1006-7302(2006)02-0028-05 |
| 修稿时间： | 2005-09-21 |
A Study of Decoding Algorithm for LDPC Codes Based on High Order Modulation over AWGN Channel |
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| ZHONG Jing-Dong,LIANG Zhao. A Study of Decoding Algorithm for LDPC Codes Based on High Order Modulation over AWGN Channel[J]. Journal of Wuyi University(Natural Science Edition), 2006, 20(2): 28-32 |
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| Authors: | ZHONG Jing-Dong LIANG Zhao |
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| Abstract: | In this paper,first,the high order soft demodulation algorithms based on AWGN were introduced.Then the basic encoding and decoding principles of LDPC codes were studied,and the sum-product algorithms with its reduced complexity algorithms were presented based on high order soft demodulation.Simulation result shows that the coded-modulation algorithms can work reliably in high speed digital communication. |
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| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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