Results 151 to 160 of about 11,972,773 (214)

Low-Density Parity-Check (LDPC) Codes

2012
In this chapter, low-density parity-check (LDPC) codes, a class of powerful iteratively decodable error correcting codes, are introduced. The chapter first reviews some basic concepts and results in information theory such as Shannon’s channel capacity and channel coding theorem. It then overviews the Flash memory channel model.
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Design of low-density parity-check (LDPC) codes for high order constellations

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005
In this paper, we propose a simple design of LDPC codes which combines the good properties of multilevel coding (MLC) and bit-interleaved coded modulation (BICM) schemes with Gray-mapped PAM constellations and one-shot demodulation. Through simulations, we show that it performs better than MLC/parallel independent decoding for short-medium lengths ...
Hari Sankar, Nagabhushana Sindhushayana, Krishna R. Narayanan   +2 more
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Low-density parity-check (LDPC) coded OFDM systems with M-PSK

Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367), 2003
Orthogonal frequency division multiplexing (OFDM) is a very attractive technique to achieve the high-bit-rate transmission required for future mobile communications. To improve the error rate performance of OFDM, forward error correction coding is essential.
Hisashi Futaki, Tomoaki Ohtsuki
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Low-Density Parity Check (LDPC) Codes

2022
Jun Xu, Jun Xu, Yifei Yuan, Meiying Huang, Liguang Li, Jin Xu   +5 more
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Low density parity check (LDPC) codes for optical data storage

International Symposium on Optical Memory and Optical Data Storage Topical Meeting, 2003
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 excellent performance of turbo codes, LDPC codes were rediscovered as another category of random codes approaching the Shannon capacity limit with practical decoding complexity ...
V. Bhagavatula, null Hongwei Song, null Jingfeng Liu   +2 more
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Quasi-Cyclic LDPC Codes With Parity-Check Matrices of Column Weight Two or More for Correcting Phased Bursts of Erasures

IEEE Transactions on Communications, 2021
Xin Xiao, Khaled Abdel-Ghaffar, Juane Li
exaly  

LIFTED LOW-DENSITY PARITY CHECK (LDPC) CODES

2021
RICHARDSON THOMAS JOSEPH, KUDEKAR SHRINIVAS   +1 more
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Efficient encoding of quasi-cyclic low-density parity-check codes

IEEE Transactions on Communications, 2006
Lingqi Zeng
exaly  

Cyclic and Quasi-Cyclic LDPC Codes on Constrained Parity-Check Matrices and Their Trapping Sets

IEEE Transactions on Information Theory, 2012
Qin Huang, Khaled Abdel-Ghaffar, Qiuju Diao   +2 more
exaly  

Density Evolution Analysis for 5G NR Quasi-Cyclic Low Density Parity Check (QC-LDPC) Codes

2023
Nachwan Mufti Adriansyah
exaly