| 基于PEG算法的LDPC线性时间编码 |
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| 引用本文： | 肖禺,朱冰莲. 基于PEG算法的LDPC线性时间编码[J]. 重庆理工大学学报(自然科学版), 2008, 22(4): 89-92 |
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| 作者姓名： | 肖禺 朱冰莲 |
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| 作者单位： | 重庆大学通信工程学院 重庆400044 |
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| 摘 要： | 引入PEG(Progressive-edge-growth)算法来构造适合线性时间编码的LDPC校验矩阵,译码时采用简化最小和Min-Sum译码算法实现简化译码.仿真结果表明,该方法能够构造适合LDPC码的线性时间编码的下三角校验矩阵H,并且用此方法构造的LDPC码性能非常接近原来PEG算法构造的LDPC码.同时通过采用最小和Min-Sum算法降低译码复杂度.
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| 关 键 词： | LDPC码 PEG算法 线性时间编码 |
Reaserch on Linear-Time-Encoding of LDPC Codes Based on PEG Algorithm |
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| XIAO Yu,ZHU Bing-lian. Reaserch on Linear-Time-Encoding of LDPC Codes Based on PEG Algorithm[J]. Journal of Chongqing University of Technology(Natural Science), 2008, 22(4): 89-92 |
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| Authors: | XIAO Yu ZHU Bing-lian |
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| Abstract: | In this paper,the PEG algorithm is introduced into the construction of parity-check matrix of LDPC codes suitable for linear-time-encoding,and the min-Sum algorithm is also used in decoding to realize simplified decoding.Simulation results show that the PEG algorithm can construct lower triangular matrix H for linear-time-encoding encoding,and the performance is very close to the original PEG algorithm.Due to the low-complex of encoding,this algorithm is very useful in practical applications. |
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| Keywords: | low-density parity-check(LDPC) code progressive edge growth(PEG) linaer-time-encoding |
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