| 基于大衍数列的规则QC-LDPC码构造方法 |
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| 引用本文： | 黄胜,穆攀,张睿,袁建国.基于大衍数列的规则QC-LDPC码构造方法[J].电视技术,2016,40(9):77-80. |
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| 作者姓名： | 黄胜 穆攀 张睿 袁建国 |
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| 作者单位： | 重庆邮电大学光通信与网络重点实验室,重庆,400065 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 结合杨辉三角的结构形式,基于大衍数列提出了一种列重为3或4的规则准循环低密度奇偶校验(QC-LDPC)码的新构造方法.该方法构造的校验矩阵围长至少为6,码长可灵活变化,并且可节省存储空间.仿真结果表明:在相同的仿真参数下,当误码率(BER)为10-6时,所构造的列重为3的QC-LDPC(1260,620)码的净编码增益(NCG)比二次函数码改善了1 dB左右;列重为4的QC-LDPC(6056,3028)码相对于WMC-OCS、QC-OCS码分别有0.1 dB和0.2 dB的NCG提升.
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| 关 键 词： | 规则QC-LDPC码 杨辉三角 大衍数列 |
| 收稿时间： | 1/8/2016 12:00:00 AM |
| 修稿时间： | 2016/2/20 0:00:00 |
A method of construction regular QC-LDPC codes based on Dayan sequence |
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| HUANG Sheng,MU Pan,ZHANG Rui and YUAN Jianguo.A method of construction regular QC-LDPC codes based on Dayan sequence[J].Tv Engineering,2016,40(9):77-80. |
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| Authors: | HUANG Sheng MU Pan ZHANG Rui and YUAN Jianguo |
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| Affiliation: | Chongqing University of Posts and Telecommunications,Chongqing University of Posts and Telecommunications,Chongqing University of Posts and Telecommunications,Chongqing University of Posts and Telecommunications |
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| Abstract: | According to structure of Yanghui Triangle and based on the Dayan sequence, it puts forward a novel construction method of regular quasi-cyclic low-density parity-check (QC-LDPC) codes whose column weight is 3 or 4. Girth of parity- check matrix is at least 6. Length of the code can vary flexibly. And storage spaces can be saved. Under the same parameters, at the bit error rate(BER) of 10-6, simulation results show QC-LDPC(1260, 620)code with column weight 3 has a net coding gain(NCG) nearly 1dB more than quadratic function code and the NCG of QC-LDPC(6056, 3028) code with column weight 4 is 0.1dB and 0.2dB more than WMC-OCS and QC-OCS code respectively. |
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| Keywords: | regular QC-LDPC code Yanghui Triangle Dayan sequence |
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