Browsing by Subject "Error-correcting codes (Information theory)"
Now showing items 1-20 of 34
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A vulnerability factor for ECC-protected memory
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Open AccessFault injection studies and vulnerability analyses have been used to estimate the reliability of data structures in memory. We survey these metrics and look at their adequacy to describe the data stored in ECC-protected ... -
Additive MDS Codes
(Universitat Politècnica de Catalunya, 2020-10)
Master thesis
Restricted access - author's decisionIn this master thesis, we present examples of additive nonlinear MDS codes over nonprime fields. Moreover, we prove the MDS conjecture for additive nonlinear codes for the alphabets F9 and F16, preserving linearity over ... -
Array codes and graph decompositions
(Universitat Politècnica de Catalunya, 2019-01)
Bachelor thesis
Open AccessArray codes are intended to correct bursts of errors in communication through noisy channels. As in regular codes there is a notion of maximum distance separating (MDS) array codes. A so-called Perfect One-Factorization ... -
Asymptotic MAP upper bounds for LDPC codes
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Open AccessThis paper aims at computing tight upper bounds for the maximum a posteriori threshold of low-density parity check codes in the asymptotic blocklength regime for the transmission over binary-input memoryless symmetricoutput ... -
Codes correcteurs d’erreurs pour un système de télérelevé entre compteurs électriques
(Universitat Politècnica de Catalunya, 2009)
Master thesis (pre-Bologna period)
Restricted access - author's decision
Covenantee: École nationale supérieure des télécommunications de Bretagne / ItronDeux systèmes de communications à des bandes de fréquences de 915MHz et 2.4GHz sont étudiés dans ce document. Tout d’abord une étude bibliographique de certains codes correcteurs d’erreurs a été effectuée afin de présenter ... -
Decodificación de canal asistida por protocolo
(Universitat Politècnica de Catalunya, 2016)
Master thesis (pre-Bologna period)
Open AccessThis document describes how the channel decoder at Physical layer of a communication system can benefit from information brought either by careful examination of the standard, or by already received packets. In all ... -
Determining when a truncated generalised Reed-Solomon code is Hermitian self-orthogonal
(Institute of Electrical and Electronics Engineers (IEEE), 2022-02-09)
Article
Open AccessWe prove that there is a Hermitian self-orthogonal k -dimensional truncated generalised Reed-Solomon code of length n¿q2 over Fq2 if and only if there is a polynomial g¿Fq2 of degree at most (q-k)q-1 such that g+gq has ... -
Development and evaluation in AVInspector
(Universitat Politècnica de Catalunya, 2011-12-20)
Bachelor thesis
Restricted access - author's decisionAVInspector is a software developed at Fraunhofer IDMT that allows analysis and detection of audio and video errors. The software consists of several independent modules for every kind of error and a GUI which manages the ... -
Error estimation and quality control
(John Wiley & sons, 2010-12-15)
Part of book or chapter of book
Restricted access - publisher's policy -
Evaluating built-in ECC of FPGA on-chip memories for the mitigation of undervolting faults
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Open AccessVoltage underscaling below the nominal level is an effective solution for improving energy efficiency in digital circuits, e.g., Field Programmable Gate Arrays (FPGAs). However, further undervolting below a safe voltage ... -
Exploiting asynchrony from exact forward recovery for DUE in iterative solvers
(Association for Computing Machinery (ACM), 2015)
Conference report
Open AccessThis paper presents a method to protect iterative solvers from Detected and Uncorrected Errors (DUE) relying on error detection techniques already available in commodity hardware. Detection operates at the memory page ... -
Exploiting asynchrony from exact forward recovery for DUE in iterative solvers
(2015)
Research report
Open AccessThis paper presents a method to protect iterative solvers from Detected and Uncorrected Errors (DUE) relying on error detection techniques already available in commodity hardware. Detection operates at the memory page ... -
Étude d’un émetteur-récepteur faster-than-Nyquist de faible complexité pour les communications par satellite
(Universitat Politècnica de Catalunya, 2015-10-01)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Institut Supérieur de l'Aéronautique et de l'EspaceCapacity increase in satelite communications systems is nowadays a main concern. In order to increase the spectral efficiency of such systems, a research topic consists in specifying non-orthogonal modulations called ... -
Generalized perfect codes for symmetric classical-quantum channels
(Institute of Electrical and Electronics Engineers (IEEE), 2022-09)
Article
Open AccessWe define a new family of codes for symmetric classical-quantum channels and establish their optimality. To this end, we extend the classical notion of generalized perfect and quasi-perfect codes to channels defined over ... -
Goal-oriented h-adaptivity for the Helmholtz equation: error estimates, local indicators and refinement strategies
(2011-01-14)
Article
Open AccessThis paper introduces a new goal-oriented adaptive technique based on a simple and effective post-process of the finite element approximations. The goal-oriented character of the estimate is achieved by analyzing both the ... -
Grassl–Rötteler cyclic and consta-cyclic MDS codes are generalised Reed–Solomon codes
(Springer, 2022-12-31)
Article
Open AccessWe prove that the cyclic and constacyclic codes constructed by Grassl and Rötteler in International Symposium on Information Theory (ISIT), pp. 1104–1108 (2015) are generalised Reed–Solomon codes. This note can be considered ... -
Low density parity check codes
(Universitat Politècnica de Catalunya, 2021-07)
Master thesis
Open AccessLow 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 ... -
Maximum distance separable codes
(Universitat Politècnica de Catalunya, 2014-10)
Bachelor thesis
Open AccessThe focus of this bachelor thesis are maximum distance separable codes. A code is used to communicate over noise channel so any interferences that may occur can be detected and corrected. Maximum distance separable codes ... -
MDS array codes and perfect factorizations of graphs
(Universitat Politècnica de Catalunya, 2020-07)
Master thesis
Restricted access - author's decisionArray Codes form a class of Error Correcting Codes which are specifically designed to deal with natural types of errors in communication devices which appear in clusters as opposite to randomly scattered within the string ... -
On additive MDS codes over small fields
(American Institute of Mathematical Sciences, 2022)
Article
Open AccessLet $ C $ be a $ (n,q^{2k},n-k+1)_{q^2} $ additive MDS code which is linear over $ {\mathbb F}_q $. We prove that if $ n \geq q+k $ and $ k+1 $ of the projections of $ C $ are linear over $ {\mathbb F}_{q^2} $ then $ C $ ...
