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:
2008 International Symposium on Information Theory and Its Applications
影响因子:
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通讯作者:
K. Kasai;C. Poulliat;David Declercq;T. Shibuya;K. Sakaniwa
K. Kasai;C. Poulliat;David Declercq;T. Shibuya;K. Sakaniwa
中科院分区:
其他
文献类型:
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作者:
K. Kasai;C. Poulliat;David Declercq;T. Shibuya;K. Sakaniwa

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对二进制低密度平价检查(LDPC)代码的重量分布进行了充分的研究。我们研究了非二元LDPC代码集合的符号和二进制重量的平均分布。我们得出渐近生长速率及其线性近似小。此外,我们显示典型的最小距离并不能随着定义代码的字段大小而单调增加。
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.