Abstract
The distribution law of the random code structure of randomly constructed irregular low-density parity-check (LDPC) codes is studied. Based on the Progressive Edge-Growth (PEG) algorithm, a new algorithm which can both eliminate short cycles and keep the distribution of the random code structure is presented. The experimental results show that the performance of the irregular LDPC codes constructed by the new algorithm is superior to that of the PEG algorithm.
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Richardson T, Shokrollahi A, Urbanke R. Design of capacity-approaching irregular low-density parity-check codes. IEEE Trans Inform Theory, 2001, 47(2): 619–637
Hu X, Eleftheriou E, Arnold D M. Progressive Edge-grown tanner graphs. In: Proceedings of IEEE Globe Com. Texas, USA: IEEE, 2001, 995–2001
Richardson T, Urbanke R. The renaissance of Gallager’s low-density parity-check codes. IEEE Commun Mag, 2003, 41(8): 126–131
Tian T, Jones C, Villasenor J, et al. Construction of irregular LDPC codes with low error floors. In: Proceedings of IEEE International Conference on Communications, Anchorage, AK, USA: IEEE, 2003, 3125–3129
Oswald P, Shokrollahi A. Capacity-achieving sequences for the erasure channel. IEEE Trans Inform Theory, 2002, 48(12): 3017–3028
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Supported by the National Natural Science Foundation of China (Grant No. 60172030), Huawei Science Foundation, and Xidian ISN National Key Laboratory
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Ma, L., Chang, Y. & Wang, S. Study on the distribution law of random code structure of irregular LDPC codes and its application in eliminating short cycles. SCI CHINA SER F 50, 99–104 (2007). https://doi.org/10.1007/s11432-007-0003-z
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DOI: https://doi.org/10.1007/s11432-007-0003-z