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
K. Kasai;D. Declercq;C. Poulliat;K. Sakaniwa
中科院分区:
计算机科学2区
文献类型:
--
作者:
K. Kasai;D. Declercq;C. Poulliat;K. Sakaniwa

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我们提出了非二进制LDPC码与乘法重复码连接。通过对速率为1/3的(2,3)正则非二进制LDPC母码进行乘法重复,构造了速率为1/ 6,1 / 9,1 /12,....的速率兼容码令人惊讶的是,这种简单的低速率非二进制LDPC码比迄今为止最好的低速率二进制LDPC码性能更好。此外,我们还提出了译码算法,该译码算法的计算复杂度几乎与母码相同。
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.