| 基于拉丁方阵的准循环LDPC码构造 |
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| 引用本文： | 陈集炜,赵泽茂,包建荣.基于拉丁方阵的准循环LDPC码构造[J].杭州电子科技大学学报,2011(5):54-57. |
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| 作者姓名： | 陈集炜 赵泽茂 包建荣 |
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| 作者单位： | 杭州电子科技大学通信工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(61001133); 浙江省大学生科技成果推广资助项目(R407054) |
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| 摘 要： | 针对环长分布对LDPC码性能的影响,该文提出了一种基于拉丁方阵的QC-LDPC码构造方法.该方法借鉴了Steiner三元系与拉丁方阵的性质,在消除短环的同时,还改进了原算法构造码字时码率不灵活的缺点.仿真结果表明,所提方法构造的短码性能优于PEG算法的短码；在构造中长码时,也有与PEG相近的性能,且具有QC-LDPC码...
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| 关 键 词： | 准循环低密度奇偶校验码 斯坦纳三元系 拉丁方阵 环长 |
Construction of QC-LDPC Codes Based on Latin Squares |
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| CHEN Ji-wei,ZHAO Ze-mao,BAO Jian-rong.Construction of QC-LDPC Codes Based on Latin Squares[J].Journal of Hangzhou Dianzi University,2011(5):54-57. |
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| Authors: | CHEN Ji-wei ZHAO Ze-mao BAO Jian-rong |
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| Affiliation: | CHEN Ji-wei,ZHAO Ze-mao,BAO Jian-rong(School of Communication Engineering,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China) |
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| Abstract: | A method for constructing QC-LDPC codes is proposed according to reaction on the performance of LDPC codes based on Latin squares.It can eliminate short cycles and also improve the shortcomings of original algorithm that the bit rate is not flexible when constructing codes by using property of Steiner triple systems and Latin squares.Simulation results show that the proposed method is superior to short code PEG algorithm when constructing short codes;in the construction of long codes,it also have similar pe... |
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| Keywords: | QC-LDPC Steiner triple system Latin square girth |
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