A construction of the high-rate regular quasi-cyclic LDPC codes

被引：0
作者：
Qi Meng
Jia Xiang Zhao
Wei Xu
Liang Li
机构：
[1] College of Electronic Information and Optical Engineering,
[2] Nankai University,undefined
[3] Tianjin Polytechnic University,undefined
[4] IP Technology Research Department,undefined
[5] Huawei Technologies,undefined
来源：
EURASIP Journal on Wireless Communications and Networking | / 2019卷
关键词：
High-rate; Regular; Quasi-cyclic; Low-density parity-check (LDPC) code;
D O I：
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学科分类号：
摘要：
In this paper, a scheme to construct the high-rate regular quasi-cyclic low-density parity-check (QC-LDPC) codes is developed based on the finite geometry low-density parity-check (LDPC) codes. To achieve this, we first decompose the EG-LDPC code into a set of the block submatrices with each of them being cyclic. Utilizing the decomposed structure, we then construct an auxiliary matrix to facilitate us for identifying and eliminating 6-cycles of the block submatrices. In the simulation, seven regular QC-LDPC codes with code rates being 4/5, 7/8, 10/11, 11/12, and 12/13 of moderate code lengths are constructed with this scheme. The performances of these codes demonstrate the effectiveness of the proposed scheme.
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