Ara es mostren els items 21-40 de 565

  • A long term evolution link level simulator 

    Serra Pagès, Albert (Universitat Politècnica de Catalunya, 2009-02)
    Projecte Final de Màster Oficial
    Accés obert
  • Ampliació i sobredimensionament d'una xarxa per a suportar serveis de banda ampla 

    Gràcia i Ferré, Marc de (Universitat Politècnica de Catalunya, 2007-01-20)
    Projecte/Treball Final de Carrera
    Accés obert
    Actualmente, algunas de las redes de control y gestión de distribución de servicios básicos a los hogares (por ejemplo luz, televisión por cable, telefonía, etc.) son redes de capacidad muy limitada. Esto se debe a la ...
  • An adaptive solution for Wireless LAN distributed power saving modes 

    Camps Mur, Daniel; Pérez-Costa, Xavier; Sallent Ribes, Sebastián (2009-12)
    Article
    Accés restringit per política de l'editorial
    The current trend to incorporate the Wireless LAN technology in increasingly smaller mobile devices poses new challenges, in terms of QoS and power consumption requirements, for the design of such devices. IEEE 802.11 ...
  • Análisis de las estrategias de gestión del espectro radioeléctrico en un sistema LTE con la herramienta Atoll 

    López Diaz, Eduardo José (Universitat Politècnica de Catalunya, 2012-02)
    Projecte/Treball Final de Carrera
    Accés obert
    English: the Mobile Communications Research Group as part of the Signal Theory and Communications Department of the Polytechnic University of Catalonia, in order to keep up with the latest technological trends in the mobile ...
  • Anàlisis de les interferències de la xarxa LTE sobre el servei de radiodifusió de TDT 

    Martinez Pla, Joan (Universitat Politècnica de Catalunya, 2012-07)
    Projecte/Treball Final de Carrera
    Accés obert
    [ANGLÈS] Co-channel interference analysis of an implementation of an LTE network broadcasting on the DTT network of Abertis Telecom, mainly in the channels 60 and 59.
  • Análisis de los patrones de asociación óptimos para los usuarios de las redes 802.11 

    Martin Cerruela, Ainhoa (Universitat Politècnica de Catalunya, 2017-06-06)
    Treball Final de Grau
    Accés obert
    In recent years, an increment of devices requesting an Internet connection has been seen. Due to this demand, the number of access points (APs) has increased. This increase causes situations in which a device is within ...
  • Análisis y caracterización de la ocupación espectral en entornos urbanos exteriores e interiores en el contexto de redes Cognitive Radio de acceso dinámico al espectro 

    Molina Corbacho, Susana (Universitat Politècnica de Catalunya, 2009-07-23)
    Projecte/Treball Final de Carrera
    Accés obert
    La tecnología Cognitive Radio se ha identificado recientemente como una prometedora solución al denominado problema de escasez de espectro, es decir, la creciente demanda de espectro y su actual infrautilización. La idea ...
  • Analysis and implementation of Road Works Warning in Cooperative Intelligent Transport Systems 

    Ubiñana Cortada, Marc (Universitat Politècnica de Catalunya, 2016-07-22)
    Projecte/Treball Final de Carrera
    Accés restringit per acord de confidencialitat
    Cooperative Intelligent Transport System uses the latest technology to allow vehicles to become connected to each other through wireless communications. In this project has been developed an application (RWW) for this ...
  • Analysis and synthesis of control systems over wireless digital channels 

    Reza Karimi, Hamid; Niu, Yugang; Rossell Garriga, Josep Maria; Yang, Fuwen (2017-06-01)
    Article
    Accés restringit per política de l'editorial
  • Analysis of information and power transfer in wireless communications 

    Caspers, Erick; Ho Yeung, Sai; Sarkar, Tapan K.; Garcia-Lamperez, Alejandro; Salazr, Magdalena; Lagunas Hernandez, Miguel A.; Pérez Neira, Ana Isabel (2013-06)
    Article
    Accés restringit per política de l'editorial
    An analysis of wireless information compared to power transfer over the same channel, consisting of a transmitting and receiving antenna system, is discussed. This frequency-selective additive-white-Gaussian-noise channel ...
  • Analysis of mesh router placement in wireless mesh networks using Friedman test 

    Oda, Tetsuya; Barolli, Admir; Spaho, Evjola; Barolli, Leonard; Xhafa Xhafa, Fatos (2014)
    Text en actes de congrés
    Accés obert
    In this paper, we deal with connectivity and coverage problem in Wireless Mesh Networks (WMNs). We used Friedman test to compare Genetic Algorithm (GA) and Tabu Search (TS). We found out that GA and TS have difference in ...
  • Analysis of mesh router placement in wireless mesh networks using Friedman test considering different meta-heuristics 

    Oda, Tetsuya; Liu, Yi; Sakamoto, Shinji; Elmazi, Donald; Barolli, Leonard; Xhafa Xhafa, Fatos (2015)
    Article
    Accés obert
    In this paper, we deal with connectivity and coverage problem in wireless mesh networks (WMNs). We used Friedman test to compare genetic algorithm (GA), tabu search (TS), hill climbing (HC) and simulated annealing (SA). ...
  • Analysis of the hidden and exposed terminal effects in wireless networks with cooperative ARQ 

    Alonso Zárate, Luis Gonzaga; Kormentzas, George; Verikoukis, Christos (Springer, 2010)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Cooperative Automatic Retransmission Request (C-ARQ) schemes allow those users which overhear a transmission to act as spontaneous relays when a packet has been received with errors at destination. When these users ...
  • Analysis of the hidden and exposed terminal effects in wireless networks with cooperative ARQ 

    Alonso-Zarate, J.; Alonso Zárate, Luis Gonzaga; Kormentzas, Georgios; Verikoukis, Christos (Springer, 2012)
    Article
    Accés restringit per política de l'editorial
    Cooperative Automatic Retransmission Request (C-ARQ) schemes allow those users which overhear a transmission to act as spontaneous relays when a packet has been received with errors at destination. When these users assist ...
  • Analysis of the social effort in multiplex participatory networks 

    Vega d'Aurelio, Davide; Meseguer Pallarès, Roc; Freitag, Fèlix (Springer, 2014)
    Text en actes de congrés
    Accés obert
    Community networks are participatory connectivity solutions for citizens where all the resources are owned, managed and controlled by the participants. As a natural evolution, in recent years some initiatives have flourished ...
  • Analysis of WiFi Traffic Traces for D2D Support 

    Garcia Aldao, Enric (Universitat Politècnica de Catalunya, 2015-07)
    Projecte/Treball Final de Carrera
    Accés obert
    The explosive growth of the smartphone users is causing a massive increase in traffic in the cellular network. Recent studies have proposed Device-to-Device (D2D) communications as a key feature of the next-generation ...
  • Analysis of WMN-HC simulation system data using Friedman test 

    Sakamoto, Shinji; Lala, Algenti; Oda, Tetsuya; Kolici, Vladi; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés obert
    With the fast development of wireless technologies, Wireless Mesh Networks (WMNs) are becoming an important networking infrastructure due to their low cost and increased high speed wireless Internet connectivity. In this ...
  • Analytical and experimental performance evaluation of BLE neighbor discovery process including non-idealities of real chipsets 

    Pérez Díaz de Cerio, David; Hernández, Ángela; Valenzuela González, José Luis; Valdovinos, Antonio (MDPI AG, 2017-03-03)
    Article
    Accés obert
    The purpose of this paper is to evaluate from a real perspective the performance of Bluetooth Low Energy (BLE) as a technology that enables fast and reliable discovery of a large number of users/devices in a short period ...
  • Analytical model of large data transactions in CoAP networks 

    Ludovici, Alessandro; Di Marco, Piergiuseppe; Calveras Augé, Anna M.; Johansson, Karl H. (2014-08-01)
    Article
    Accés obert
    We propose a novel analytical model to study fragmentation methods in wireless sensor networks adopting the Constrained Application Protocol (CoAP) and the IEEE 802.15.4 standard for medium access control (MAC). The blockwise ...
  • An Analysis of Space-Time codes/channel codes combination 

    Carrasco Reyes, Rocío (Universitat Politècnica de Catalunya, 2014-09-12)
    Projecte/Treball Final de Carrera
    Accés obert
    [ANGLÈS] In wireless communications are used several techniques to improve the reliability of transmitted data. Space-time coding technique (as Alamouti scheme) is one of them. This technique does not necessarily lead to ...