| 多边类型LDPC码删余方案的设计 |
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| 引用本文： | 游莹. 多边类型LDPC码删余方案的设计[J]. 福建师大福清分校学报, 2013, 0(5): 11-17 |
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| 作者姓名： | 游莹 |
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| 作者单位： | 福建师范大学福清分校数学与计算机科学系,福建福清350300 |
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| 摘 要： | 根据多边类型低密度奇偶校验码的结构优势，提出了简化的分组选择删余算法，设计了码率自适应的多边类型低密度奇偶校验码。仿真结果表明，相较于码率自适应不规则低密度奇偶校验码以及可有效编码的码率自适应的低密度奇偶校验码，本文设计的码率自适应的多边类型低密度奇偶校验码在BER=10-6时有0.1-0.2dB范围的增益；同时在混合自动重传方案中，当吞吐量为0.71b/s/Hz时分别有0.6dB，1.2dB的增益。
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| 关 键 词： | 分组选择删余 删余算法 码率自适应 多边类型低密度奇偶校验码 混合自动重传方案 |
The Design of Multiedge-type LDPC Codes Puncturing Scheme |
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| YOU Ying. The Design of Multiedge-type LDPC Codes Puncturing Scheme[J]. Journal of Fuqing Branch of Fujian Normal University, 2013, 0(5): 11-17 |
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| Authors: | YOU Ying |
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| Affiliation: | YOU Ying ( Fuqing Branch of Fujian Normal University, Fuqing, Fujian 350300) |
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| Abstract: | Considering the structure advantage of Multi-edge-type low density parity check （LDPC） codes over conventional LDPC codes, the traditional puncturing algorithm based on grouping and sorting is improved and simplified in this paper. It can be applied to obtain rate-compatible irregular LDPC codes and efficiently-encodable rate-compatible LDPC codes, RC-METLDPC codes possess nearly the rang from 0.1 dB to 0.2dB performance gain at the BER=10-6 ; meanwhile 0.6 dB and 1.2dB performance gain were achieved respectively at the throughout=0.71b/s/Hz in HARQ scheme. |
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| Keywords: | grouping and sorting puncturing algorithm rate-compatible multi-edge-type LDPC HARQ |
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