Results 31 to 40 of about 38,968 (301)

Efficient Search of Compact QC-LDPC and SC-LDPC Convolutional Codes with Large Girth

, 2018
We propose a low-complexity method to find quasi-cyclic low-density parity-check block codes with girth 10 or 12 and shorter length than those designed through classical approaches.
Baldi, Marco, Battaglioni, Massimo, Chiaraluce, Franco, Tadayon, Mohammad H., Tasdighi, Alireza   +4 more
core   +1 more source

Multilevel Structured Low-Density Parity-Check Codes [PDF]

2008 IEEE International Conference on Communications, 2008
Low-density parity-check (LDPC) codes are typically characterized by a relatively high-complexity description, since a considerable amount of memory is required in order to store their code description, which can be represented either by the connections of the edges in their Tanner graph or by the non-zero entries in their parity-check matrix (PCM ...
Nicholas Bonello, Sheng Chen 0001, Lajos Hanzo   +2 more
openaire   +2 more sources

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

Advanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang, Jiaqi Zhang, Mei Cui, Wei Qi, Renliang Huang, Rongxin Su, Kai Zhang   +6 more
wiley   +1 more source

Low density parity check codes

IEICE ESS Fundamentals Review, 2021
Low Density Parity Check codes, LDPCs for short, are a family of codes which have shown near optimal error-correcting capabilites. They were proposed in 1963 by Robert Gallager in his PhD thesis. While he proved that probabilistic constructions of random LDPCs gave asymptotically good linear codes, they were largely abandoned due to the lack of ...
openaire   +4 more sources

Analysis of reaction and timing attacks against cryptosystems based on sparse parity-check codes

, 2019
In this paper we study reaction and timing attacks against cryptosystems based on sparse parity-check codes, which encompass low-density parity-check (LDPC) codes and moderate-density parity-check (MDPC) codes.
A Becker, A Nilsson, DJ Bernstein, E Berlekamp, E Eaton, E Prange, H Niederreiter, J Stern, K Kobara, M Baldi, M Baldi, P Santini, PJ Lee, Q Guo, RG Gallager, T Fabšič, T Fabšič   +16 more
core   +1 more source

AutomataGPT: Transformer‐Based Forecasting and Ruleset Inference for Two‐Dimensional Cellular Automata

Advanced Science, EarlyView.
We introduce AutomataGPT, a generative pretrained transformer (GPT) trained on synthetic spatiotemporal data from 2D cellular automata to learn symbolic rules. Demonstrating strong performance on both forward and inverse tasks, AutomataGPT establishes a scalable, domain‐agnostic framework for interpretable modeling, paving the way for future ...
Jaime A. Berkovich, Noah S. David, Markus J. Buehler   +2 more
wiley   +1 more source

ITERATIVE DECODING OF SHORT LOW-DENSITY PARITY-CHECK CODES BASED ON DIFFERENTIAL EVOLUTION

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
To ensure a given quality of service in the networks of the Internet of Things, short error-correcting codes are used, in particular, low-density parity-check codes.
Mykola Shtompel, Sergii Prykhodko
doaj   +1 more source

Ultra-Sparse Non-Binary LDPC Codes for Probabilistic Amplitude Shaping

, 2017
This work shows how non-binary low-density parity-check codes over GF($2^p$) can be combined with probabilistic amplitude shaping (PAS) (B\"ocherer, et al., 2015), which combines forward-error correction with non-uniform signaling for power-efficient ...
Böcherer, Georg, Liva, Gianluigi, Steiner, Fabian   +2 more
core   +1 more source

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

Advanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai, Barak Ratzker, Pasquale Cavaliere, Dierk Raabe   +3 more
wiley   +1 more source

Novel construction of quasi-cyclic low-density parity-check codes with variable code rates for cloud data storage systems

ETRI Journal, 2023
This paper proposed a novel method for constructing quasi-cyclic low-density parity-check (QC-LDPC) codes of medium to high code rates that can be applied in cloud data storage systems, requiring better error correction capabilities.
Vairaperumal Bhuvaneshwari, Chandrapragasam Tharini   +1 more
doaj   +1 more source