| 基于隐马尔科夫模型的多元LDPC联合译码 |
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| 引用本文： | 赵旦峰,王诗力,周相超.基于隐马尔科夫模型的多元LDPC联合译码[J].电子科技,2013,26(8):4-6. |
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| 作者姓名： | 赵旦峰 王诗力 周相超 |
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| 作者单位： | (哈尔滨工程大学 信息与通信工程学院,黑龙江 哈尔滨 150001) |
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| 摘 要： | 采用隐马尔科夫模型对信源估计,对基于多进制LDPC码的联合信源信道译码算法展开研究。该算法通过对传统的多进制LDPC译码算法的改进,在迭代过程中加入通过估计算法得到的信源冗余,校正了迭代软信息,提高译码性能。仿真结果表明,在AWGN信道中,改进算法相比传统译码算法性能优越。
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| 关 键 词： | 隐马尔科夫模型 多进制LDPC码 信源信道联合译码 |
Joint Decoding of Non-binary LDPC Code Based on HMM |
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| ZHAO Danfeng
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WANG Shili
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ZHOU Xiangchao.Joint Decoding of Non-binary LDPC Code Based on HMM[J].Electronic Science and Technology,2013,26(8):4-6. |
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| Authors: | ZHAO Danfeng WANG Shili ZHOU Xiangchao |
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| Affiliation: | (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | This paper focuses on the joint source-channel decoding algorithm based on Non-binary LDPC code,by source estimation of HMM.Aiming at augmenting the performance,this algorithm improves the conventional decoding algorithm of Non-binary LDPC code by adding source redundancy estimated and modifying the iterative soft information in the iterative process.The result of emulation shows its superiority over conventional methods in AWGN channel. |
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| Keywords: | hidden markov model non binary LDPC code joint source channel decoding |
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