Browsing by Subject "Codis correctors d'errors (Teoria de la informació)"

Now showing items 1-12 of 12

    • A vulnerability factor for ECC-protected memory 

      Jaulmes, Luc; Moreto Planas, Miquel; Valero Cortés, Mateo; Casas, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Fault 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 ...

    • Asymptotic MAP upper bounds for LDPC codes 

      Matas Navarro, David; Lamarca Orozco, M. Meritxell (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Open Access
      This 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 

      Ruiz del Rio, Patricia (Universitat Politècnica de Catalunya, 2009)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Covenantee:   École nationale supérieure des télécommunications de Bretagne / Itron
      Deux 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 

      Moreno Lozano, Daniel (Universitat Politècnica de Catalunya, 2016)
      Master thesis (pre-Bologna period)
      Open Access
      This 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 ...

    • Evaluating built-in ECC of FPGA on-chip memories for the mitigation of undervolting faults 

      Salami, Behzad; Unsal, Osman Sabri; Cristal Kestelman, Adrián (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Voltage 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 

      Jaulmes, Luc; Casas Guix, Marc; Moreto Planas, Miquel; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (Association for Computing Machinery (ACM), 2015)
      Conference report
      Open Access
      This 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 

      Jaulmes, Luc; Casas Guix, Marc; Moreto Planas, Miquel; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (2015)
      Research report
      Open Access
      This 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 

      Abelló Barberán, Albert (Universitat Politècnica de Catalunya, 2015-10-01)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Institut Supérieur de l'Aéronautique et de l'Espace
      Capacity 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 

      Blasco Coll, Andreu; Vázquez Vilar, Gonzalo; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2022-09)
      Article
      Open Access
      We 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 ...

    • Performance of direct-oversampling correlator-type receivers in chaos-based DS-CDMA systems over frequency non-selective fading channels 

      Nguyen, Xuan Quyen; Barlet Ros, Pere (2017-03-08)
      Article
      Open Access
      In this paper, we present a study on the performance of direct-oversampling correlator-type receivers in chaos-based direct-sequence code division multiple access systems over frequency non-selective fading channels. At ...

    • State estimation and decoupling of unknown inputs in uncertain LPV systems using interval observers 

      Rotondo, Damiano; Cristofaro, Andrea; Johansen, Tor Arne; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (2017-06-13)
      Article
      Open Access
      This paper proposes a linear parameter varying (LPV) interval observer for state estimation and unknown inputs decoupling in uncertain continuous-time LPV systems. Two different problems are considered and solved: (1) the ...

    • Understanding error control coding 

      Sanvicente Gargallo, Emilio (Springer, 2019)
      Book
      Restricted access - publisher's policy
      This book is addressed to newcomers to error control coding (ECC), making the subject easy to understand and to apply in a variety of cases. The book begins by presenting in a detailed, step-by-step manner the plethora ...