| 基于一些PBIBD的低密度校验码的构造 |
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| 引用本文： | 颜廷苏,黄鑫梅,孙涛,唐元生.基于一些PBIBD的低密度校验码的构造[J].通信技术,2008,41(12). |
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| 作者姓名： | 颜廷苏 黄鑫梅 孙涛 唐元生 |
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| 作者单位： | 扬州大学,数学科学学院,江苏,扬州,225002 |
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| 基金项目： | 国家自然科学基金
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教育部科学技术研究重点项目
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东南大学移动通信国家重点实验审开放课题
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| 摘 要： | 本文构造了两类部分平衡不完全区组设计.并利用它们构造了一类低密度校验码(LDPC码),其最小环长至少为6,码率的选取具有很大的灵活性,而且可以具有拟循环结构.计算机仿真结果表明这种方法构造的LDPC码,在加性高斯白噪声信道中BPSK调制下用和积迭代译码性能很好.
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| 关 键 词： | 部分平衡不完全区组设计 拟循环低密度校验码 围长 和积译码 |
Construction of Low-Density Parity-Check Codes Based on Some Partially Balanced Incomplete Block Designs |
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| YAN Ting-SU,HUANG Xin-mei,SUN Tao,TANG Yuan-sheng.Construction of Low-Density Parity-Check Codes Based on Some Partially Balanced Incomplete Block Designs[J].Communications Technology,2008,41(12). |
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| Authors: | YAN Ting-SU HUANG Xin-mei SUN Tao TANG Yuan-sheng |
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| Affiliation: | YAN Ting-su,HUANG Xin-mei,SUN Tao,TANG Yuan-sheng (Department of mathematical science,Yangzhou University,Yangzhou Jiangsu 225002,China) |
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| Abstract: | In this paper,two classes of partially balanced incomplete block designs (PBIBD) based on finite fields is constructed,and they are used to construct the regular low-density parity-check (LDPC) codes.The constructed LDPC codes are free of 4-cycles and with high flexibility for choosing the code rate.In particular,they can also be quasi-cyclic.Simulations show that the constructed LDPC codes under sum-product iterative decoding perform very well over additive white Gaussian noise (AWGN) channels with BPSK mo... |
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| Keywords: | PBIBD Quasi-cyclic LDPC codes girth sum-product decoding |
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