磁记录信道高速率(3,l)规则QC-LDPC码的新结构

2010 16th Asia-Pacific Conference on Communications (APCC) Pub Date : 2010-10-01 DOI:10.1109/APCC.2010.5679760

M. Kupimai, V. Imtawil, Anupap Meesomboon, Puripong Suthisopapan

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引用次数: 1

摘要

本文提出了一种基于循环置换矩阵的高速率(3,l)正则QC-LDPC码的新结构。该码的奇偶校验矩阵由置换矩阵、置换矩阵的转置矩阵和单位矩阵组成。有了这个新方法，所建议的代码就不需要周长4、周长6，有时甚至不需要周长8。与已有的(3,l)正则QC-LDPC码的奇偶校验矩阵相比，本文提出的码易于构造。在磁记录信道上的仿真结果表明，所提码的误码率性能与其他(3,l)规则QC-LDPC码非常接近。

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A novel structure of high rate (3,L) regular QC-LDPC codes for magnetic recording channels

The novel structure of high rate (3,L) regular QC-LDPC codes based on circulant permutation matrices are presented in this paper. The parity-check matrix of the proposed code consists of permutation matrices, their transpose matrices and identity matrices. With this new method, the proposed code is free from girth 4, girth 6, and sometimes girth 8. The construction of parity-check matrix of the proposed codes easily is obtained comparing to those of previously found (3,L) regular QC-LDPC codes. Simulation results on magnetic recording channels show that the BER performance of the proposed codes is very closed to that of other (3,L) regular QC-LDPC codes.

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2010 16th Asia-Pacific Conference on Communications (APCC)

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