Multiplicatively Repeated Nonbinary LDPC Codes
Multiplicatively Repeated Nonbinary LDPC Codes
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DOI:
10.1109/tit.2011.2162259
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发表时间:
2011-10
影响因子:
2.5
通讯作者:
K. Kasai;D. Declercq;C. Poulliat;K. Sakaniwa
中科院分区:
文献类型:
--
作者:
K. Kasai;D. Declercq;C. Poulliat;K. Sakaniwa
We propose nonbinary LDPC codes concatenated with multiplicative repetition codes. By multiplicatively repeating the (2,3)-regular nonbinary LDPC mother code of rate 1/3, we construct rate-compatible codes of lower rates 1/6, 1/9, 1/12,.... Surprisingly, such simple low-rate nonbinary LDPC codes outperform the best low-rate binary LDPC codes so far. Moreover, we propose the decoding algorithm for the proposed codes, which can be decoded with almost the same computational complexity as that of the mother code.