| 引用本文: | 刘宁庆,王焜,孙浩伟.一种改进的PS-LDPC码构造法[J].哈尔滨工业大学学报,2011,43(3):29.DOI:10.11918/j.issn.0367-6234.2011.03.006 |
| LIU Ning-qing,WANG Kun,SUN Hao-wei.An Improved algorithm for constructing PS-LDPC codes[J].Journal of Harbin Institute of Technology,2011,43(3):29.DOI:10.11918/j.issn.0367-6234.2011.03.006 |
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| 摘要: |
| 为提高校验矩阵的构造效率,对子矩阵的移位系数的选择提出了合理的理论准则,并提供了一种直观且合理的寻找矩阵中闭合环路的方法以简化构造过程.以AWGN信道仿真考察了采用这种改进方法构造的PS-LDPC码的译码性能.仿真结果证明采用此改进算法构造的PS-LDPC码具有更优的BER性能. |
| 关键词: PS-LDPC码 移位矩阵 周长 最小距离 闭合环路 |
| DOI：10.11918/j.issn.0367-6234.2011.03.006 |
| 分类号:TN911.2 |
| 基金项目: |
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| An Improved algorithm for constructing PS-LDPC codes |
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LIU Ning-qing1, WANG Kun1, SUN Hao-wei2
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1.Institute of Communication Technology,Harbin Institute of Technology,150080 Harbin,China;2.Military Representative Office of PLA in Harbin for Naval Equipment,150046 Harbin,China)
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| Abstract: |
| Partition-and-Shift codes have been paid much attention in the area of error correction in telecommunication system,because of its ideal girth and min-distance property.An Improved algorithm for constructing PS-LDPC codes is presented to improve constructing efficiency,by employing a precise criterion for choosing the shift parameters in shift matrix and a perspicuous and reasonable method to search for closed paths simply.Finally,the improved PS-LDPC codes are simulated over AWGN channel and a better BER performance is obtained. |
| Key words: Partition-and-Shift codes shift matrix girth min-distance closed path |
