Low-density parity check (LDPC codes, first introduced by Gallager (1962), are error-
correcting codes based on very sparse parity check matrices. Recently, in the wake of …

Recently, turbo codes and low-density parity check (LDPC) codes with iterative soft
decoding have been heavily investigated as potential candidates for low-SNR, high-density …

Low density parity check (LDPC) codes with iterative decoding based on belief propagation
(IDBP) achieve astonishing error performance close to the Shannon limit. Until now there …

Low density parity check (LDPC) codes are forward error-correction codes, invented by
Robert Gallager in his MIT Ph. D. dissertation, 1960. The LDPC codes are ignored for long …

In this paper, we present a method for constructing irregular LDPC (low density parity check)
codes based on the optical orthogonal codes. The resulting codes are quasi-cyclic codes …

LDPC codes were invented in 1960 by R. Gallager. They were largely ignored until the
discovery of turbo codes in 1993. Since then, LDPC codes have experienced a renaissance …

For reliable data transmission or storage system, channel coding is necessary. LDPC codes
are defined as parity-check matrices that consist almost entirely of zeros and small number …

This dissertation presents a new class of irregular low-density parity-check (LDPC) codes of
moderate length and high rate. The codes in this class admit low-complexity encoding and …

This paper is concerned with investigating the performance of regular and irregular,
randomlike and structured generalized low-density parity-check (GLDPC) codes for long …

In this paper, we compare performance of three classes of forward error correction schemes
for 40-Gb/s optical transmission systems. The first class is based on the concatenation of …