| 基于改进型UMP BP-Based算法的LDPC译码研究 |
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| 引用本文： | 张天瑜.基于改进型UMP BP-Based算法的LDPC译码研究[J].微型机与应用,2010,29(5). |
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| 作者姓名： | 张天瑜 |
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| 作者单位： | 无锡市广播电视大学机电工程系,江苏,无锡,214011 |
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| 摘 要： | 为了弥补UMP BP-Based译码算法相对于LLR BP译码算法的性能缺陷,提出一种改进型UMP BP-Based译码算法.该算法中的参数是在最小均方误差准则下确定的,对所有的LDPC码的译码具有通用性.仿真结果表明,在相同误码率的情况下,改进型UMP BP-Based译码算法比UMP BP-Based译码算法、Normalized BP-Based译码算法以及Offset BP-Based译码算法具有更好的LDPC译码性能.
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| 关 键 词： | LDPC码 Tanner图 最小均方误差 LLR BP译码算法 改进型UMP BP-Based译码算法 |
Research on LDPC decoding based on modified UMP BP-Based algorithm |
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| ZHANG Tian Yu.Research on LDPC decoding based on modified UMP BP-Based algorithm[J].Microcomputer & its Applications,2010,29(5). |
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| Authors: | ZHANG Tian Yu |
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| Affiliation: | ZHANG Tian Yu (Department of Mechanical , Electrical Engineering,Wuxi Radio & Television University,Wuxi 214011,China) |
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| Abstract: | In order to make up for the performance defects of UMP BP-Based decoding algorithm relative to LLR BP decoding algorithm, a modified UMP BP-Based decoding algorithm is proposed. Parameters of the proposed algorithm are confirmed according to minimum mean square error rule and it has the generality for decoding of all LDPC codes. The simulation results show that the LDPC decoding performance of modified UMP BP-Based decoding algorithm is more effective than that of UMP BP-Based decoding algorithm, Normalized... |
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| Keywords: | LDPC codes Tanner graph minimum mean square error LLR BP decoding algorithm modified UMP BP-Based decoding algorithm |
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