Now showing items 1-20 of 47

  • A diffusion-based distributed EM algorithm for density estimation in wireless sensor networks 

    Silva Pereira, Silvana; López Valcarce, Roberto; Pagès Zamora, Alba Maria (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    We address the problem of distributed estimation of a parameter from a set of noisy observations collected by a sensor network, assuming that some sensors may be subject to data failures and report only noise. In such ...
  • A diffusion-based em algorithm for distributed estimation in unreliable sensor networks 

    Silva Pereira, Silvana; López Valcarce, Roberto; Pagès Zamora, Alba Maria (2013-01)
    Article
    Restricted access - publisher's policy
    We address the problem of distributed estimation of a parameter from a set of noisy observations collected by a sensor network, assuming that some sensors may be subject to data failures and report only noise. In such ...
  • A Game Theoretical algorithm for joint power and topology control in distributed WSN 

    Closas Gómez, Pau; Pagès Zamora, Alba Maria; Fernández Rubio, Juan Antonio (2009)
    Conference lecture
    Open Access
    In this paper, the issue of network topology control in wireless networks using a fully distributed algorithm is considered. Whereas the proposed distributed algorithm is designed applying game theory concepts to design ...
  • A novel architecture to model non-linear systems 

    Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A. (1994)
    Conference report
    Open Access
    This paper shows a new architecture specially thought to model non-linear systems (NLSs). At first, it was applied only to memoryless systems but then it developed to solve a more general problem, NLSs with memory. The ...
  • Blind multiclass ensemble classification 

    Traganitis, Panagiotis; Pagès Zamora, Alba Maria; Giannakis, Georgios B. (2018)
    Article
    Open Access
    The rising interest in pattern recognition and data analytics has spurred the development of innovative machine learning algorithms and tools. However, as each algorithm has its strengths and limitations, one is motivated ...
  • Capacity of MIMO Channels: asymptotic evaluation under correlated fading 

    Mestre Pons, Francesc X.; Rodríguez Fonollosa, Javier; Pagès Zamora, Alba Maria (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-06-30)
    Article
    Open Access
    This paper investigates the asymptotic uniform power allocation capacity of frequency nonselective multiple-input multiple-output channels with fading correlation at either the transmitter or the receiver. We consider ...
  • Consensus for distributed EM-based clustering in WSNs 

    Silva Pereira, Silvana; Barbarossa, Sergio; Pagès Zamora, Alba Maria (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference lecture
    Open Access
    A distributed EM algorithm with consensus is proposed for density estimation and clustering using WSNs in the presence of mixtures of Gaussians. The EM algorithm is a general framework for maximum likelihood estimation in ...
  • Consensus in random WSNs with correlated symmetric links 

    Silva Pereira, Silvana; Pagès Zamora, Alba Maria (2011)
    Conference lecture
    Restricted access - publisher's policy
    In this paper we study the convergence of consensus algorithms in wireless sensor networks with random topologies and instantaneous symmetric links which exist with different probabilities independently in time but correlated ...
  • Counting Malaria parasites with a two-stage EM based algorithm using crowdsourced data 

    Cabrera-Bean, Margarita; Pagès Zamora, Alba Maria; Diaz Vilor, Carles; Postigo Camps, Maria; Cuadrado Sánchez, Daniel; Luengo Oroz, Miguel Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    Malaria eradication of the worldwide is currently one of the main WHO’s global goals. In this work, we focus on the use of human-machine interaction strategies for lowcost fast reliable malaria diagnostic based on a ...
  • D6.2 Report of Final validation in snow avalanches 

    Santiago Montilla, Leonardo Alberto; Giménez Febrer, Pedro Juan; Pagès Zamora, Alba Maria (2015-04-10)
    External research report
    Open Access
    Once the RESCUECELL system was integrated, all the functionalities were tested in terms of accuracy, and performance under real scenarios in collapsed structures 1 and snow. For this purpose, a set of tests and ...
  • Design and implementation of a DVB on-Board multi-carrier demodulator 

    Sala Álvarez, José; Pagès Zamora, Alba Maria; Sergio, Calvo; Prat Gomà, Josep Joan (1998)
    Conference report
    Open Access
    A description of the signal processing stage of an on-board integrated VLSI multi-carrier demodulator at the demultiplexing level is presented, along with a description of the optimization procedure that has been developed ...
  • Desplegament de recursos en línea per a l’avaluació i l’autoaprenentage dels alumnes, i foment de l’especialització i competències transversals en el màster MERIT 

    Pradell i Cara, Lluís; Cardama Aznar, Ángel; Canal Bienzobas, Fernando; Jofre Roca, Lluís; Junyent Giralt, Gabriel; Herranz Luis, Jaime; Mallorquí Franquet, Jordi J.; Nadeu Camprubí, Climent; Pagès Zamora, Alba Maria; Pradell i Cara, Lluís; Rius Casals, Juan Manuel; Rodríguez Fonollosa, Javier; Romeu Robert, Jordi; Coderch Collell, Marcel; Kerans, Mary Ellen; Law, Carolyn; García Hernández, Antonio; Gutiérrez Martos, David; Hernández Bonet, Antoni; Ferrer Bosch, Anna; Pérez Trufero, Javier; Torre Lara, Jordi de la; Torres Matabosch, Núria (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-02-11)
    Conference lecture / Conference report
    Open Access
    El projecte es desenvolupa en el marc de la titulació oficial de màster MERIT del Departament de Teoria del Senyal i Comunicacions. El màster, orientat a la recerca i integrat dins del programa Erasmus Mundus, presenta ...
  • Distributed AOA-based source positioning in NLOS with sensor networks 

    Giménez Febrer, Pedro Juan; Pagès Zamora, Alba Maria; Silva Pereira, Silvana; López Valcarce, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference lecture
    Open Access
    This paper focuses on the problem of positioning a source using angle-of-arrival measurements taken by a wireless sensor network in which some of the nodes experience non lineof-sight (LOS) propagation conditions. In ...
  • Distributed multivariate regression with unknown noise covariance in the presence of outliers: an MDL approach 

    López Valcarce, Roberto; Romero Gonzalez, Daniel; Sala Álvarez, José; Pagès Zamora, Alba Maria (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    We consider the problem of estimating the coefficients in a multivariable linear model by means of a wireless sensor network which may be affected by anomalous measurements. The noise covariance matrices at the different ...
  • Distributed TLS estimation under random data faults 

    Silva Pereira, Silvana; Pagès Zamora, Alba Maria; López Valcarce, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    This paper addresses the problem of distributed estimation of a parameter vector in the presence of noisy input and noisy output data, as well as data faults, performed by a wireless sensor network in which only local ...
  • Distributed Total Least Squares estimation over networks 

    López Valcarce, Roberto; Silva Pereira, Silvana; Pagès Zamora, Alba Maria (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    We consider Total Least Squares (TLS) estimation in a network in which each node has access to a subset of equations of an overdetermined linear system. Previous distributed approaches require that the number of equations ...
  • Efficient bit-level design of an on-board digital TV demultiplexer 

    Sala Álvarez, José; Pagès Zamora, Alba Maria; Vázquez Grau, Gregorio (1998)
    Conference report
    Open Access
    A bit-level description of the signal processing stage of an on-board integrated VLSI multi-carrier demodulator is presented in this paper, along with a description of the optimization procedure that has been developed for ...
  • Equalization of non-minimum phase channels with a non-linear architecture 

    Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A. (1994)
    Conference report
    Open Access
    The equalization of non-minimum phase channels by means of a transversal filter becomes quite complicated when the real conditions are different from the ideal ones. The optimum delay that must be applied to the reference ...
  • Experimental result for a sdma mobile communications antenna array system 

    Goldberg, Jason Matthew; Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A.; Rodríguez Fonollosa, Javier; Vázquez Grau, Gregorio (EE PUBL. EE PUBL., 1996)
    Conference report
    Open Access
    This paper presents experimental results for a Spatial Division Multiple Access cellular mobile communications system. The basestation antenna array testbed used to obtain the results is described in addition to sophisticated ...
  • Experimental results for an SDMA mobile communication's antenna array system 

    Goldberg, Jason Matthew; Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A.; Rodríguez Fonollosa, Javier; Vázquez Grau, Gregorio (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Conference report
    Open Access
    This paper presents experimental results for a SpatialDivision Multiple Access cellular mobile communicationssystem. The basestation antenna array testbedused to obtain the results is described in addition tosophisticated ...