Now showing items 1-14 of 14

  • Array codes and graph decompositions 

    Vilar Algueró, Ricard (Universitat Politècnica de Catalunya, 2019-01)
    Bachelor thesis
    Open Access
    Array 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 ...
  • Códigos convolucionales de Goppa 

    Muñoz Porras, José M. (2008-04-03)
    Audiovisual
    Open Access
    Se hará una introducción a la teoría de códigos convolucionales y a continuación describiremos la construcción de códigos convolucionales como códigos de valoración en una familia uniparamétrica de curvas algebraicas. Los ...
  • Construcció de codis correctors a partir de configuracions i grafs 

    Basart i Muñoz, Josep M. (Universitat Politècnica de Barcelona. Centre de Càlcul, 1986-06)
    Article
    Open Access
    Se trata de presentar algunas de las relaciones de carácter básicamente combinatorio que es posible encontrar entre dos tipos importantes de estructuras de incidencia, como son los grafos simétricos y las t-configuraciones, ...
  • Development and evaluation in AVInspector 

    Soler Garcia, José Alberto (Universitat Politècnica de Catalunya, 2011-12-20)
    Bachelor thesis
    Restricted access - author's decision
    AVInspector 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 

    Díez, Pedro; Parés Mariné, Núria; Huerta, Antonio (John Wiley & sons, 2010-12-15)
    Part of book or chapter of book
    Restricted access - publisher's policy
  • Feasibility and implementation study of a high-throughput DVB-S2 LDPC Decoder on FPGA architecture 

    Boistault, Etienne (Universitat Politècnica de Catalunya, 2014-10-16)
    Master thesis
    Restricted access - author's decision
    [ENGLISH] The aim of this project consists in the study of the error correcting codes LDPC (Low Density Parity Check) in the context of the DVB-S2 standard (Digital Video Broadcasting for Satellite version 2) in order to ...
  • Goal-oriented h-adaptivity for the Helmholtz equation: error estimates, local indicators and refinement strategies 

    Steffens, Lindaura; Parés Mariné, Núria; Díez, Pedro (2011-01-14)
    Article
    Open Access
    This 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 ...
  • Implementación del algoritmo BCJR. Aplicación al Fingerprinting 

    Martínez Salvatella, Albert (Universitat Politècnica de Catalunya, 2016-10-21)
    Master thesis (pre-Bologna period)
    Open Access
    BCJR algorithm implementation written in Java. Obtention of the probability expressions and error correction. Capability of identifying conspiring users within dual binary Hamming codes. GUI implementation.
  • Locating-dominating codes: Bounds and extremal cardinalities 

    Cáceres, Jose; Hernando Martín, María del Carmen; Mora Giné, Mercè; Pelayo Melero, Ignacio Manuel; Puertas, M. Luz (2013-09-01)
    Article
    Restricted access - publisher's policy
    In this work, two types of codes such that they both dominate and locate the vertices of a graph are studied. Those codes might be sets of detectors in a network or processors controlling a system whose set of responses ...
  • Maximum distance separable codes 

    Albanell Sarroca, Elisabeth (Universitat Politècnica de Catalunya, 2014-10)
    Bachelor thesis
    Open Access
    The 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 ...
  • Optimization of Random Linear Network Coding protocols for multipath communications in heterogeneous networks 

    Costa Sala, Clara (Universitat Politècnica de Catalunya, 2019-04-25)
    Bachelor thesis
    Open Access
    Covenantee:  Technische Universität Dresden
    In the next upcoming mobile generation era (5G), the demands for high-data-rate transmissions is predicted to grow considerably. Among new studies focused on how to support such demands, Random Linear Network Coding (RLNC) ...
  • Parallelization of the interpolation process in the Koetter-Vardy soft-decision list decoding algorithm 

    Moreira Sánchez, José; Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel (2012)
    Conference lecture
    Open Access
    List decoding is a decoding strategy that provides a set of codewords at the output of the channel decoder. Since this technique corrects errors beyond the correcting bound of the code, upper layers in the application or ...
  • Recobriment i grafs distància-regulars 

    Rifà i Coma, Josep; Pujol Capdevila, Jaume (Universitat Politècnica de Barcelona. Centre de Càlcul, 1988)
    Article
    Open Access
    Uno de los aspectos claves en las telecomunicaciones está relacionado con el uso de los códigos correctores de errores para la transmisión de información. Actualmente se utiliza una clase muy simple de códigos; la ...
  • Use of Turbo Codes with Low-Rate Convolutional Constituent Codes in Fingerprinting Scenarios 

    Tomás Buliart, Joan; Gómez Muro, Ana; Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel (IEEE, 2011)
    Conference lecture
    Restricted access - publisher's policy
    We discuss the use of turbo codes in fingerprinting schemes. More precisely, we present a family of turbo codes that are secure against attacking coalitions of size 2. This family is build upon a class of low-rate convolutional ...