Now showing items 21-31 of 31

    • 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) ...
    • 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 ...
    • Runtime-guided ECC protection using online estimation of memory vulnerability 

      Jaulmes, Luc; Moreto Planas, Miquel; Valero Cortés, Mateo; Erez, Mattan; Casas Guix, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      Diminishing reliability of semiconductor technologies and decreasing power budgets per component hinder designing next-generation high performance computing (HPC) systems. Both constraints strongly impact memory subsystems, ...
    • Signature codes for weighted noisy adder channel, multimedia fingerprinting and compressed sensing 

      Egorova, Elena; Fernández Muñoz, Marcel; Kabatiansky, Grigory; Moon Ho, Lee (2019-03-01)
      Article
      Open Access
      We propose a new approach to construct noise-resistant multimedia fingerprinting codes. Our approach is based on the theory of the signature codes for multiple access channels, mainly, for a weighted noisy adder channel. ...
    • SRAM arrays with built-in parity computation for real-time error detection in cache tag arrays 

      Canal Corretger, Ramon; Sazeides, Yiannakis; Bramnik, Arkady (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      This work proposes an SRAM array with built-in real-time error detection (RTD) capabilities. Each cell in the new RTD-SRAM array computes its part of the real-time parity of an SRAM array column on-the-fly. RTD based arrays ...
    • 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 ...
    • The equivalence of codes 

      Dixon, James Edward (Universitat Politècnica de Catalunya, 2021-07)
      Master thesis
      Open Access
      When discussing equivalent codes, the literature tends to define equivalence differently for linear or nonlinear codes. For non-linear codes, one normally defines equivalence based on a permutation of coordinates and ...
    • The geometry of Hermitian self-orthogonal codes 

      Ball, Simeon Michael; Vilar Algueró, Ricard (Springer, 2021-12-20)
      Article
      Restricted access - publisher's policy
      We prove that if n>k2 then a k-dimensional linear code of length n over Fq2 has a truncation which is linearly equivalent to a Hermitian self-orthogonal linear code. In the contrary case we prove that truncations of linear ...
    • The geometry of quantum codes 

      Puig Pericas, Pablo (Universitat Politècnica de Catalunya, 2021-07)
      Master thesis
      Open Access
      Quantum particles are continuously interacting with the environment hence quantum information is always susceptible to errors. Consequently when encoding information into quantum bits a special treatment is required such ...
    • 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 ...
    • 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 ...