Results 21 to 30 of about 13,970 (185)
Spatially-Coupled Random Access on Graphs [PDF]
, 2012 In this paper we investigate the effect of spatial coupling applied to the recently-proposed coded slotted ALOHA (CSA) random access protocol. Thanks to the bridge between the graphical model describing the iterative interference cancelation process of ...
Chiani, Marco +4 more
core +1 more source
BIT ERROR OPTIMIZATION OF CODED OFDM SYSTEM OVER RAYLEIGH FADING CHANNEL [PDF]
Journal of Engineering and Sustainable Development, 2019 Low Density Parity-Check (LDPC) codes are one of the hottest topics in coding theory today. This code invented in the early 1960's, and it having an amazing comeback in the last few years.
Awatif Ali Jafaar, Zainab Majeed Abid
doaj +3 more sources
On the Stopping Distance of SA-LDPC Codes by Transversal Designs
IEEE Access, 2018 In this paper, we analyze the size of the smallest stopping set (called the stopping distance) for the parity-check matrix of a superposed array low-density parity-check (SA-LDPC) code for column weights 3 and 4 by using the transversal design (TD ...
Zahra Ferdosi +2 more
doaj +1 more source
Distance verification for LDPC codes [PDF]
2016 IEEE International Symposium on Information Theory (ISIT), 2016 5 pages, 1 figure, to appear in Proceedings of ISIT 2016 - IEEE International Symposium on Information Theory ...
Dumer, Ilya +2 more
openaire +4 more sources
Differentially Encoded LDPC Codes—Part II: General Case and Code Optimization
EURASIP Journal on Wireless Communications and Networking, 2008 This two-part series of papers studies the theory and practice of differentially encoded low-density parity-check (DE-LDPC) codes, especially in the context of noncoherent detection. Part I showed that a special class of DE-LDPC codes, product accumulate
Jing Li (Tiffany)
doaj +1 more source
COMPARATIVE ANALYSIS OF LDPC AND BCH CODES ERROR-CORRECTING CAPABILITIES
Information and Telecommunication Sciences, 2014 The error-correcting capabilities of regular LDPC (Low Density Parity Check) codes and BCH (Bose-Chaudhuri-Hocquenguem) codes are examined. The qualitative analysis and the quantitative assessment of error-correcting abilities are performed for LDPC ...
Leonid O. Uryvsky, Serhii O. Osypchuk
doaj +1 more source
New Construction of Low-Density Parity-Check Codes Based on Vector Space Over Finite Fields
IEEE Access, 2020 Low-Density Parity-Check (LDPC) codes have low linear decoding complexity, which is a kind of good codes with excellent performance. Therefore, LDPC codes have great research value.
Xuemei Liu, Lihua Jia
doaj +1 more source
Finite-Length Analysis for Spatially Coupled LDPC Codes Based on Base Matrix
Entropy, 2023 Spatially coupled low density parity check (SC-LDPC) are prominent candidates for future communication standards due to their “threshold saturation” properties.
Yang Liu, Sha Sun, Yuzhi Zhang, Bin Wang
doaj +1 more source
Weight Distributions of Regular Low-Density Parity-Check Codes over Finite Fields [PDF]
, 2011 The average weight distribution of a regular low-density parity-check (LDPC) code ensemble over a finite field is thoroughly analyzed. In particular, a precise asymptotic approximation of the average weight distribution is derived for the small-weight ...
Chen, Yan +4 more
core +1 more source
From product codes to structured generalized LDPC codes [PDF]
Proceedings of the 5th International ICST Conference on Communications and Networking in China, 2010 Product codes, due to their relatively large minimum distance, are often seen as a natural solution for applications requiring low error floors. In this paper, we show by means of an ensemble weight enumerator analysis that the minimum distance multiplicities of product codes are much higher than those obtainable by other generalized LDPC (GLDPC ...
M. Lentmaier +3 more
openaire +5 more sources