| LDPC码的译码算法研究 |
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| 引用本文： | 陈燕,蔡灿辉. LDPC码的译码算法研究[J]. 通信技术, 2008, 41(12) |
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| 作者姓名： | 陈燕 蔡灿辉 |
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| 作者单位： | 华侨大学,信息科学与工程学院,福建,泉州,362021 |
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| 基金项目： | 国家自然科学基金 |
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| 摘 要： | 根据硬件实现的要求,文中研究了LPDC码的译码算法,提出了适合硬件实现的NormaIized Min-Sum译码算法的系数,并在此基础上对该算法的量化范围和量化方案的性能进行了仿真分析,仿真结果表明均匀量化比特5,6和7的选择对于误码性能影响不大,该算法大大降低了计算复杂度和硬件实现难度,具有很好的实用价值.
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| 关 键 词： | 低密度奇偶校验码(LDPC) 置信度传播 最小和 量化译码 |
Research on Decoding Algorithm of LDPC Code |
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| CHEN Yan,CAI Can-hui. Research on Decoding Algorithm of LDPC Code[J]. Communications Technology, 2008, 41(12) |
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| Authors: | CHEN Yan CAI Can-hui |
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| Affiliation: | CHEN Yan,CAI Can-hui (College of Engineering , Science,Hua Qiao University,Quanzhou Fujian 362021,China) |
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| Abstract: | Based on the demand for hardware implementation,the paper presents the decoding algorithm of LDPC code and proposes a new modification factor for Normalized Min-Sum algorithm to ease the hardware implementation.This paper describes the simulations on the performances of quantization range and quantization scheme.Simulation results show that the performances of 5,6 or 7 quantization bits are all quite close to ideal performance.This algorithm would reduce greatly the computation complexity and the difficulty... |
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| Keywords: | Low-Density Parity-Check codes (LDPC) Belief Propagation Min-Sum LDPC quantization |
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