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Modified Progressive Edge-Growth Algorithm for Fast-Encoding LDPC Codes

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3 Author(s)
Xueqin Jiang ; Dept. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea ; Mi Sung Lee ; Moon Ho Lee

Progressive edge-growth (PEG) algorithm is known to construct low-density parity-check (LDPC) codes at finite code lengths with large girths. A simple variation of the PEG algorithm, linear-encoding PEG (LPEG) algorithm, can be applied to generate linear encodable LDPC codes. This paper presents a modified LPEG algorithm to construct fast encodable LDPC codes with a certain girth constraint. The presented fast encodable LDPC codes facilitate the parallel encoding processes for parity bit generations. Therefore, their encoding time is much shorter than that of LPEG codes.

Published in:

Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd

Date of Conference:

6-9 Sept. 2010