| LLR-BP算法的简化译码算法研究 |
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| 引用本文： | 王冬梅.LLR-BP算法的简化译码算法研究[J].科学技术与工程,2010,10(12). |
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| 作者姓名： | 王冬梅 |
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| 作者单位： | 1. 大庆石油学院电气信息工程学院,大庆,163318
2. 中国环境管理干部学院,秦皇岛,066004 |
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| 摘 要： | 研究了基于Gallager方案的LLR-BP算法及其简化的译码算法,应用Matlab仿真比较了基于Gallager方案的LLR-BP算法及其三种简化译码算法的性能,仿真结果表明:基于Gallager方案的LLR-BP算法与归一化BP算法和偏置BP算法的误码率性能相差不多,当信噪比大于2dB时,归一化BP算法和偏置BP算法比基于Gallager方案的LLR-BP算法的误码率性能稍好,最小和算法误码率性能相对最差。
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| 关 键 词： | 低密度奇偶校验码 偏置BP算法 可信程序对数可能比例（Log-likehood-ratio-based-progration LLR-BP）算法 |
| 收稿时间： | 1/26/2010 4:35:24 PM |
| 修稿时间： | 1/26/2010 4:35:24 PM |
The Simplified Decoding Algorithm Research of LLR-BP algorithm |
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| wangdongmei.The Simplified Decoding Algorithm Research of LLR-BP algorithm[J].Science Technology and Engineering,2010,10(12). |
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| Authors: | wangdongmei |
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| Institution: | Faculty of Electricity and Information Engineering/a>;Daqing Petroleum Institute/a>;Daqing 163318/a>;P.R.China/a>;Environment Management College of China1/a>;Qinhuangdao 066004/a>;P.R.China |
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| Abstract: | The LLR-BP algorithm based on Gallager-approach and its simplified decoding algorithm is studied. The performance of LLR-BP algorithm based on Gallager-approach and its three simplified decoding algorithm are simulated by Matlab.The simulation results indicated that.The BER performance of LLR-BP algorithm based on Gallager-approach,normalized BP algorithm and offset BP algorithm are very similar, and when the SNR is larger than 2 dB, the BER performance of Normalized BP algorithm and offset BP algorithm is ... |
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| Keywords: | LDPC codes offset BP-based algorithm LLR-BP algorithm |
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