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具有完全线性编码复杂度的QC-LDPC码的构造方法及短环优化算法 被引量：1

Construction of QC-LDPC codes with total linear encoding complexity and eliminating short cycles
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摘要 为了降低低密度奇偶校验(Low-density parity-check,LDPC)码编码实现的复杂度,提出了一种完全线性编码复杂度的准循环低密度奇偶校验(Quasi-cyclic low-density parity-check,QC-LDPC)码的构造方法,并提出了相应的短环优化算法。通过该短环优化算法,可以使得构造的QC-LDPC码具有良好的环路特性。仿真结果表明:在加性高斯白噪声(Additivewhite gaussian noise,AWGN)信道条件下,本文构造的QC-LDPC码与IEEE 802.16e标准的QC-LDPC码相比,不仅编码复杂度更低,而且性能更优。 In order to reduce the encoding complexity of Low-Density Parity Check（LDPC） codes,a method of constructing Quasi-Cyclic LDPC（QC-LDPC） codes with total linear encoding complexity and a short-cycle optimization algorithm for eliminating short cycles were proposed.Based on the short-cycle optimization algorithm,the constructed QC-LDPC codes can achieve good cycle distribution.Simulation was carried out under the Additive White Gaussian Noise（AWGN） channel.The simulation results show that the proposed QC-LDPC codes outperform the IEEE802.16e standard QC-LDPC codes in both error performance and encoding complexity.
作者 张嵩 马林华 唐红 田雨 查翔
机构地区 空军工程大学航空航天工程学院
出处 《吉林大学学报（工学版）》 EI CAS CSCD 北大核心 2013年第3期824-829,共6页 Journal of Jilin University:Engineering and Technology Edition
基金 陕西省电子信息系统综合集成重点实验室重点基金项目(2011.ZD01) 陕西省电子信息系统综合集成重点实验室基金项目(2011.02Y02)
关键词 通信技术 准循环低密度奇偶校验码 短环优化算法 线性编码复杂度 communication quasi-cyclic low-density parity-check（QC-LDPC） short-cycle optimization algorithm linear encoding complexity
分类号 TN911.22 [电子电信—通信与信息系统]
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参考文献12

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共引文献37

同被引文献15

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引证文献1

吉林大学学报（工学版）
2013年 第3期

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