Title
Design Of Quasi-Cyclic Ldpc Codes With Maximized Girth Property
Abstract
In this paper, we propose the construction of quasi-cyclic (QC) LDPC codes based on the modified progressive edge-growth (PEG) algorithm to achieve the maximum local girth. Although the previously designed QC-LDPC codes based on the PEG algorithm has more flexible code rates than the conventional QC-LDPC code, in the design process, multiple choices of the edges may be chosen. In the proposed algorithm, we aim to maximize the girth property by choosing the suitable edges and thus improve the error correcting performance. Simulation results show that the QC-LDPC codes constructed from the proposed method give higher proportion of high local girths than other methods, particularly, at high code rates. In addition, the proposed codes offer superior bit error rate and block error rate performances to the previous PEG-QC codes over the additive white Gaussian noise (AWGN) channel.
Year
DOI
Venue
2013
10.1587/transfun.E96.A.2128
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
Keywords
Field
DocType
QC-LDPC codes, PEG algorithm, local girth
Discrete mathematics,Low-density parity-check code,Mathematics
Journal
Volume
Issue
ISSN
E96A
11
0916-8508
Citations 
PageRank 
References 
0
0.34
8
Authors
3
Name
Order
Citations
PageRank
Watid Phakphisut112.06
Patanasak Prompakdee200.68
Pornchai Supnithi3126.12