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准循环LDPC码的两种典型快速译码算法研究

刘晓健 吴晓富 赵春明

刘晓健, 吴晓富, 赵春明. 准循环LDPC码的两种典型快速译码算法研究[J]. 电子与信息学报, 2009, 31(1): 79-82. doi: 10.3724/SP.J.1146.2007.01103
引用本文: 刘晓健, 吴晓富, 赵春明. 准循环LDPC码的两种典型快速译码算法研究[J]. 电子与信息学报, 2009, 31(1): 79-82. doi: 10.3724/SP.J.1146.2007.01103
Liu Xiao-jian, Wu Xiao-fu, Zhao Chun-ming. Two Typical High Throughput Decoding Algorithms for QC-LDPC Codes[J]. Journal of Electronics & Information Technology, 2009, 31(1): 79-82. doi: 10.3724/SP.J.1146.2007.01103
Citation: Liu Xiao-jian, Wu Xiao-fu, Zhao Chun-ming. Two Typical High Throughput Decoding Algorithms for QC-LDPC Codes[J]. Journal of Electronics & Information Technology, 2009, 31(1): 79-82. doi: 10.3724/SP.J.1146.2007.01103

准循环LDPC码的两种典型快速译码算法研究

doi: 10.3724/SP.J.1146.2007.01103
基金项目: 

国家863计划项目(2006AA01Z263)资助课题

Two Typical High Throughput Decoding Algorithms for QC-LDPC Codes

  • 摘要: 该文从译码速率、硬件实现的复杂度和误码率3个方面对比研究了两种典型的高速译码算法:Turbo型和积算法与并行加权比特翻转算法。以准循环LDPC码为对象,给出了Turbo型和积算法和并行加权比特翻转算法的实现时序、硬件复杂度以及误码率性能,其中,并行加权比特翻转算法的高效时序结构是首次给出的。计算机仿真结果表明,这两种算法都能够在迭代次数较少时取得良好的性能。
  • Gallager R G. Low-density parity-check codes[J].IRE Trans. onInform Theory.1962, 8(1):21-28[2]Lan L, Zheng L Q, Tai Y Y, Lin S, and Abdel-Ghaffar K.Construction of quasi-cyclic LDPC codes for the AWGN andbinary erasure channels based on finite field and affinemappings. 2005. ISIT 2005. Proceedings. InternationalSymposium on Information Theory, 4-9 Sept. 2005:2285-2289.[3]Liu Z and Pados A. A decoding algorithm for finite-geometryLDPC codes[J].IEEE Trans. on Commun.2005, 53(3):415-421[4]Jiang M, Zhao Chunming, Shi Z, and Chen Y. Animprovement on the modified weighted bit flipping decodingalgorithm for LDPC codes[J].IEEE Commun. Lett.2005, 9(9):814-816[5]Zhang J and Fossorier M. A modified weighted bit-flippingdecoding of low-density parity-check codes[J].IEEE Commun.Lett.2004, 8(3):165-167[6]Shan M, Zhao Chunming, and Jiang M. Improved weightedbit-flipping algorithm for decoding LDPC codes. IEEProc.-Commun. 2005, 152(12): 919-922.[7]Wu Xiaofu, Zhao Chunming, and You X. Parallel weighted bit-flipping decoding[J].IEEE Commun. Lett.2007, 11(8):671-673[8]Wu Xiaofu, Ling Cong, Jiang Ming, Xu Enyang, ZhaoChunming, and You Xiaohu. Towards understandingweighted bit-flipping decoding. IEEE Int. Symp. Inform.Theory07, Nice, France, June 2007: 1561-1566.[9]Wiberg N. Codes and decoding on general graphs. [Ph.D.dissertation], Department of Electrical Engineering,Linkoping University, Linkoping, Sweden, 1996.[10]Fossorier M, Mihaljevic M, and Imai H. Reduced complexityiterative decoding of low density parity check codes based onbelief propagation[J].IEEE Trans. on Communications.1999,47(5):673-680[11]赵春明, 许恩阳, 姜明等. 双涡轮结构低密度奇偶校验码解码器. 中国发明专利, 申请号: 200610096535. 9, 2006. 9.
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出版历程
  • 收稿日期:  2007-07-02
  • 修回日期:  2007-11-25
  • 刊出日期:  2009-01-19

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