TR2006-055

Two-Dimensional Correction for Min-Sum Decoding of Irregular LDPC Codes

    •  Zhang, J., Fossorier, M., Gu, D., Zhang, J., "Two-Dimensional Correction for Min-Sum Decoding of Irregular LDPC Codes", IEEE Communications Letters, Vol. 10, No. 3, pp. 180-182, March 2006.
      BibTeX TR2006-055 PDF
      • @article{Zhang2006mar,
      • author = {Zhang, J. and Fossorier, M. and Gu, D. and Zhang, J.},
      • title = {Two-Dimensional Correction for Min-Sum Decoding of Irregular LDPC Codes},
      • journal = {IEEE Communications Letters},
      • year = 2006,
      • volume = 10,
      • number = 3,
      • pages = {180--182},
      • month = mar,
      • issn = {1089-7798},
      • url = {https://www.merl.com/publications/TR2006-055}
      • }
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    Communications

Abstract:

Two-Dimensional (2-D) correction schemes are proposed to improve the performance of conventional min-sum (MS) decoding of irregular low density parity check codes. An iterative procedure based on parallel differential optimization is presented to obtain the optimal 2-D factors. Both density evolution analysis and simulation show that the proposed method provides a comparable performance as belief propagation (BP) decoding while requiring less complexity. Interestingly, the new method exhibits a lower error floor than that of BP decoding. With respect to conventional MS and 1-D normalized MS decodings, the 2-D normalized MS offers a better performance. The 2-D offset MS decoding exhibits a similar behavior.

 

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