Title :
Improved progressive-edge-growth (PEG) construction of irregular LDPC codes
Author :
Xiao, Hua ; Banihashemi, Amir H.
Author_Institution :
Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada
Abstract :
Progressive-edge-growth (PEG) algorithm is known to construct low-density parity-check codes at finite block lengths with very good performance. In this letter, we propose a very simple modification to PEG construction for irregular codes, which considerably improves the performance at high signal-to-noise (SNR) ratios with no sacrifice in low-SNR performance.
Keywords :
parity check codes; PEG; SNR; finite block lengths; irregular LDPC codes; low-density parity-check codes; progressive-edge-growth algorithm; signal-to-noise ratio; Code standards; Communication standards; Electronic mail; Floors; Iterative algorithms; Iterative decoding; Parity check codes; Performance analysis; Signal to noise ratio; Systems engineering and theory;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.839612
