Now showing items 1-16 of 16

    • Additive MDS Codes 

      Gamboa Quintero, Guillermo Andres (Universitat Politècnica de Catalunya, 2020-10)
      Master thesis
      Restricted access - author's decision
      In 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 

      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 ...
    • 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, ...
    • 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 ...
    • 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 ...
    • MDS array codes and perfect factorizations of graphs 

      Vilar Algueró, Ricard (Universitat Politècnica de Catalunya, 2020-07)
      Master thesis
      Restricted access - author's decision
      Array 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 ...
    • 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 ...