Weight distribution of non-binary LDPC codes
Weight distribution of non-binary LDPC codes
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DOI:
10.1109/isita.2008.4895508
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发表时间:
2008-12
期刊:
影响因子:
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通讯作者:
K. Kasai;C. Poulliat;David Declercq;T. Shibuya;K. Sakaniwa
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文献类型:
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作者:
K. Kasai;C. Poulliat;David Declercq;T. Shibuya;K. Sakaniwa
Weight distributions of binary low-density parity-check (LDPC) codes are well studied. We investigate the average distributions of symbol and binary weight for non-binary LDPC code ensemble. We derive the asymptotic growth rate and its linear approximation for small weight. Moreover, we show the typical minimum distance does not monotonically increase with the size of the field where the codes are defined.