Paper Info
Title
Decoder-Optimised Progressive Edge Growth Algorithms for the Design of LDPC Codes with Low Error Floors
Abstract
A novel construction for irregular low-density parity-check (LDPC) codes based on a modification of the Progressive Edge Growth (PEG) algorithm is presented. Edge placement of the PEG algorithm is enhanced by use of the Sum-Product algorithm in the design of the parity-check matrix. The proposed algorithm is highly flexible in block length and rate. The codes constructed by the proposed methods are tested in the AWGN channel and significant performance improvements are achieved. The flexibility of the proposed decoder optimisation operation is then shown by its use in modifying the Improved PEG (IPEG) algorithm to achieve further performance gains.
Year
DOI
Venue
2012
10.1109/LCOMM.2012.042312.112220
Communications Letters, IEEE
Keywords
Field
DocType
AWGN channels,channel coding,decoding,matrix algebra,optimisation,parity check codes,AWGN channel,IPEG algorithm,LDPC code design,block length,decoder optimisation,decoder-optimised progressive edge growth algorithm,edge placement,improved PEG algorithm,irregular low-density parity check codes,low error floors,parity check matrix,performance gains,sum-product algorithm,Low-density parity-check codes,Progressive Edge Growth (PEG) algorithm
Error floor,Algorithm design,Matrix (mathematics),Low-density parity-check code,Computer science,Signal-to-noise ratio,Algorithm,Communication channel,Decoding methods,Additive white Gaussian noise
Journal
Volume
Issue
ISSN
16
6
1089-7798
Citations 
PageRank 
References 
20
0.71
10
Authors
2
Name
Order
Citations
PageRank
Cornelius T. Healy1200.71
de Lamare, R.C.265233.42