Results 21 to 30 of about 50,282 (262)

Subsystem Codes with High Thresholds by Gauge Fixing and Reduced Qubit Overhead

open access: yesPhysical Review X, 2021
We introduce a technique that uses gauge fixing to significantly improve the quantum-error-correcting performance of subsystem codes. By changing the order in which check operators are measured, valuable additional information can be gained, and we ...
Oscar Higgott, Nikolas P. Breuckmann
doaj   +1 more source

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

open access: yes, 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   +16 more
core   +1 more source

New Construction of Low-Density Parity-Check Codes Based on Vector Space Over Finite Fields

open access: yesIEEE 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

The Effect of Saturation on Belief Propagation Decoding of LDPC Codes

open access: yes, 2014
We consider the effect of LLR saturation on belief propagation decoding of low-density parity-check codes. Saturation occurs universally in practice and is known to have a significant effect on error floor performance.
Iyengar, Aravind   +2 more
core   +1 more source

Statistical Mechanics of Low-Density Parity Check Error-Correcting Codes over Galois Fields [PDF]

open access: yes, 2000
A variation of low density parity check (LDPC) error correcting codes defined over Galois fields ($GF(q)$) is investigated using statistical physics.
Kabashima, Yoshiyuki   +2 more
core   +3 more sources

An Efficient Method to Construct Parity-Check Matrices for Recursively Encoding Spatially Coupled LDPC Codes †

open access: yesEntropy, 2016
Spatially coupled low-density parity-check (LDPC) codes have attracted considerable attention due to their promising performance. Recursive encoding of the codes with low delay and low complexity has been proposed in the literature but with constraints ...
Zhongwei Si, Sijie Wang, Junyang Ma
doaj   +1 more source

Non Binary Low Density Parity Check Codes Decoding Over Galois Field [PDF]

open access: yes, 2015
Conventional LDPC codes have a low decoding complexity but may have high encoding complexity. The encoding complexity is typically of the order O(n2)[5]. Also high storage space may be required to explicitly store the generator matrix. For long blocknbsp
Ahuja, Y. (Yogita), Bharti, R. (Ramesh)
core  

Array Convolutional Low-Density Parity-Check Codes

open access: yes, 2013
This paper presents a design technique for obtaining regular time-invariant low-density parity-check convolutional (RTI-LDPCC) codes with low complexity and good performance. We start from previous approaches which unwrap a low-density parity-check (LDPC)
Baldi, Marco   +2 more
core   +1 more source

Data‐Driven Multi‐Objective Optimization of Large‐Diameter Si Floating‐Zone Crystal Growth

open access: yesAdvanced Theory and Simulations, EarlyView.
This study presents a surrogate‐based Multi‐Objective Optimization framework for Floating Zone silicon crystal growth. An ensemble of Neural Networks is trained on simulation data and combined with Genetic Algorithms to explore trade‐offs in process parameters.
Lucas Vieira   +3 more
wiley   +1 more source

Low-Latency QC-LDPC Encoder Design for 5G NR

open access: yesSensors, 2021
In order to meet the low latency and high throughput requirements of data transmission in 5th generation (5G) New Radio (NR), it is necessary to minimize the low power encoding hardware latency on transmitter and achieve lower base station power ...
Yunke Tian, Yong Bai, Dake Liu
doaj   +1 more source

Home - About - Disclaimer - Privacy