Now showing items 13-32 of 81

  • Channel management in a campus-wide WLAN with partially overlapping channels 

    Mengual Pérez, Ester; García Villegas, Eduard; Vidal Ferré, Rafael (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference lecture
    Restricted access - publisher's policy
    The 2.4 GHz ISM band is a battlefield where an increasingly large number of devices compete for the scarce frequency resources. IEEE 802.11 WLANs suffer the consequences of this overcrowded spectrum, especially in dense ...
  • Characteristics and evaluation of IEEE 802.11n standard 

    Garcia Gil, Sergio (Universitat Politècnica de Catalunya, 2013-07-22)
    Bachelor thesis
    Open Access
    El objetivo de este trabajo final de carrera es caracterizar y evaluar las diferentes funcionalidades y mejoras que aporta el nuevo estándar IEEE 802.11n respecto a sus antecesores. Para ello se hace un estudio teórico ...
  • Characterization of reconfigurable antennas in real Wifi environments 

    Castellanos de Rojas, Adrian (Universitat Politècnica de Catalunya, 2015-02-03)
    Bachelor thesis
    Open Access
    [ANGLÈS] The purpose of this project is to characterize two reconfigurable microstrip antennas at 5 GHz against the common Wifi monopole, by measuring them in real Wifi environments. From the measurements, conclusions on ...
  • Characterizing WLAN channel occupancy for cognitive networking 

    Vizcaino Luna, Alexandre (Universitat Politècnica de Catalunya, 2012-07-30)
    Master thesis
    Open Access
    The deployment of heterogeneous wireless networks in the same spectrum space introduces the need for dynamic spectrum access so as to increase the utilization of the available wireless resources. Dynamic spectrum access ...
  • Communication and coordination patterns to support mobile collaboration 

    Meseguer Pallarès, Roc; Ochoa, Sergio; Pino, José; Navarro Moldes, Leandro; Neyem, Andres (2008-06-10)
    Conference report
    Open Access
    Wireless communication and mobile computing technologies have brought new opportunities and challenges to the CSCW area. Traditional CSCW solutions concerning communication and coordination support are not applicable ...
  • Configuración e implantación de un sistema de gestión centralizada 

    Sanchez Abril, Angel (Universitat Politècnica de Catalunya, 2014-07-23)
    Bachelor thesis
    Restricted access - author's decision
    [ABSTRACT] This work is part of the Information Infrastructure initiative in Telefónica I+D. The initiative focuses on offering support to all the users and corporative services inside the Company, from provisioning both ...
  • Control y gestión remota de servidores bluetooth 

    Romero Gutiérrez, Gabriel (Universitat Politècnica de Catalunya, 2008-03-13)
    Master thesis (pre-Bologna period)
    Open Access
    Actualmente hay una gran competitividad entre empresas, cuya única salida es promocionarse mejor que el resto para poder darse a conocer tanto ellos mismos como a sus servicios o productos novedosos. Debido a esta situación ...
  • Cooperative download in urban vehicular networks 

    Fiore, Marco; Barceló Ordinas, José María (IEEE Computer Society Publications, 2009-10-12)
    Conference report
    Open Access
    We target urban scenarios where vehicular users can download large files from road-side Access Points (APs), and define a framework to exploit opportunistic encounters between mobile nodes to increase their transfer rate. ...
  • Cramér-Rao lower bound for breakpoint distance estimation in a path-loss model 

    Castro Arvizu, Juan Manuel; Closas Gómez, Pau; Fernández Rubio, Juan Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    This paper addresses the problem of determining the Cramér-Rao lower bound (CRLB) for the parameters and breakpoint distance in a Path-Loss Channel model for Received Signal Strength (RSS) measurements. The path loss model ...
  • Decentralised multi-access MAC protocol for ad-hoc networks 

    Realp, Marc; Pérez Neira, Ana Isabel (2003)
    Conference report
    Open Access
    In ad-hoc radio networks, mechanisms on how to access the radio channel are extremely important in order to improve network efficiency and, when needed, to guarantee QoS. Traditionally, Medium Access Control (MAC) protocols ...
  • Descobriment i comunicació entre nodes en un entorn de proximitat 

    Arellano Cobos, Raquel; García Martínez, Tamara (Universitat Politècnica de Catalunya, 2010-10-04)
    Bachelor thesis
    Open Access
  • Desenvolupament d'una plataforma basada en Android d'accés a dades en edificis en cas d'emergència 

    Bestard Martí, Jaume (Universitat Politècnica de Catalunya, 2013-07-25)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    [ANGLÈS] This project aims to address the creation of an application targeted for mobile platforms to access important information on emergency scenarios. This application will enable the person who uses it to get a quick ...
  • Diseño de filtros modo común para sistemas balanceados basados en metamateriales 

    Pachón Muñoz, Arturo (Universitat Politècnica de Catalunya, 2010)
    Master thesis (pre-Bologna period)
    Open Access
    Los actuales servcios de radiofrecuencia presentan una mayor dificultad, desde el punto de vista de compatibilidad electromagnética, debido a la necesidad de compactarlos lo máximo posible. Para mitigar los efectos que ...
  • Diseño y configuración de una red IP para distribución de señal TDT 

    Escudero Embid, Jorge (Universitat Politècnica de Catalunya, 2013-05-23)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] The purpose of this project is to implement a terrestrial transmission network based on multicast technology, designed to deliver a signal Digital Terrestrial Television to different emitting centers. The network ...
  • Diseño y desarrollo de una red BAN Bluetooth para la monitorización en enfermos de parkinson 

    Rica Escriche, Adrià (Universitat Politècnica de Catalunya, 2013-12)
    Bachelor thesis
    Open Access
    Este trabajo final de grado se ha desarrollado en el Centre Tecnològic de Recerca per a la Dependència i la Vida Autònoma (CETpD). El CETpD es un centro de investigación, cuyo objetivo es ayudar a personas con dependencia ...
  • Diseño y planificacion de la red de datos de un colegio con capacidad de 860 personas y 3060 m2 edificados 

    Domínguez Sagra, Verónica (Universitat Politècnica de Catalunya, 2011-03-25)
    Bachelor thesis
    Open Access
    El objetivo principal de este proyecto es realizar el diseño de de la red de voz y datos del colegio CEIP. Plaça dels Països Catalans., ubicado en Lleida. Inicialmente se han especificado los requisitos principales que ...
  • Disseny d'una xarxa per a dispositius industrials en el campus de l'aeroport de Barajas amb equips Hirschmann 

    Tena Hernandez, Javier (Universitat Politècnica de Catalunya, 2012-12-10)
    Bachelor thesis
    Open Access
    When we think in a common airport, the first thing that comes in mind is the image of a airplane, but it's more than this what lies behind this infrastructure. Needs in the field of telecommunications requiring any airport ...
  • Disseny i actualització d'una xarxa de comunicacions industrial 

    Ferrero Alcals, Lluís (Universitat Politècnica de Catalunya, 2013-06-27)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    [ANGLÈS] The complexity of the industrial network due to increased number of devices and control networks, and the obsolescence of some equipment and control applications requires rethinking the design of a new communications ...
  • Disseny, desplegament i configuració d'un testbed de xarxa amb eines de monitorització 

    Rodríguez Reboredo, Oscar (Universitat Politècnica de Catalunya, 2010-12-02)
    Bachelor thesis
    Open Access
    El monitoratge de les xarxes de dades és necessari per tal d’avaluar el seu rendiment i el grau de servei que ofereix. Aquest ajuda a conèixer l’estat dels dispositius (elements de commutació o encaminament) per entendre ...
  • Energy-aware topology control strategy for human-centric wireless sensor networks 

    Meseguer Pallarès, Roc; Molina, Carlos; Ochoa, Sergio; Santos, Rodrigo (2014-02-07)
    Article
    Open Access
    The adoption of mobile and ubiquitous solutions that involve participatory or opportunistic sensing increases every day. This situation has highlighted the relevance of optimizing the energy consumption of these solutions, ...