Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18628
Title: A class of QC-LDPC codes with low encoding complexity and good error performance
Authors: Tam, WM
Lau, FCM 
Tse, CK 
Keywords: Approximate lower triangular structure
Encoding complexity
QC low-density-parity-check (LDPC) codes
Issue Date: 2010
Source: IEEE Communications letters, 2010, v. 14, no. 2, 5403623, p. 169-171 How to cite?
Journal: IEEE Communications Letters 
Abstract: We propose a novel approximate lower triangular structure for the parity part of the parity-check matrix of QC-LDPC codes. About half of the non-zero elements in the parity part are set to locate on the upper diagonal while the remaining non-zero elements can be located almost anywhere within the lower triangular area, provided certain rules are observed. Compared with the typical dual-diagonal structure, the proposed structure requires very similar encoding complexity and produces lower error rates over an AWGN channel.
URI: http://hdl.handle.net/10397/18628
ISSN: 1089-7798
DOI: 10.1109/LCOMM.2010.02.091930
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