Now showing items 1-20 of 51

  • Análisis del protocolo IEEE 802.11b en un entorno celular 

    López Aguilera, M. Elena; Casademont Serra, Jordi; Rojas Espinosa, Alfonso (Universidad de Las Palmas de Gran Canaria, Servicio de Publicaciones, 2003)
    Conference report
    Open Access
    In this paper we present an analysis of the protocol IEEE 802.11b in different environments. Its performance in an indoor environment is evaluated, in terms of throughput and transmission delay, and the influence of the ...
  • A study on the influence of transmission errors on WLAN 802.11 MAC performance 

    López Aguilera, M. Elena; Casademont Serra, Jordi; García Villegas, Eduard (2010)
    Article
    Restricted access - publisher's policy
    Since the advent of the first IEEE 802.11 standard for WLANs, several papers have been presented that evaluate the IEEE 802.11 DCF access method. In realistic WLAN environments frame errors usually occur due to non-ideal ...
  • A transmit power control proposal for IEEE 802.11 cellular networks 

    López Aguilera, M. Elena; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers, 2006-05)
    Conference report
    Open Access
    Actually, the idea of designing an outdoor cellular network based on WLAN IEEE 802.11 results very attractive, due to the several advantages that this technology presents. It offers the equipment at a lower cost, operates ...
  • Cálculo de las prestaciones de un sistema de telefonía móvil celular DCA con técnicas de mejora de capacidad 

    Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 1998-01-23)
    Doctoral thesis
    Open Access
    El objetivo que ha motivado esta tesis ha sido el analizar y proponer mecanismos para incrementar la capacidad de tráfico de un sistema de acceso radio DECT (Digital Enhanced Cordless Telecommunications) en entornos de ...
  • Channel access unfairness of wireless LAN access methods 

    López Aguilera, M. Elena; Heusse, Martin; Rousseau, Franck; Duda, Andrzej; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers, 2006-06)
    Conference report
    Open Access
    In this paper, we present an evaluation of chosen wireless LAN access methods involving stations with different bit error rates: n - 1 stations in ideal transmission conditions (BER = 0) and 1 station with a given bit error ...
  • Design, development and performance evaluation of a low-cost, Low-power wake-up radio system for WSN 

    Oller Bosch, Joaquim; Seyfettin Demirkol, Ilker; Casademont Serra, Jordi; Paradells Aspas, Josep (2013-11-01)
    Article
    Restricted access - publisher's policy
    Energy-efficient operation is a challenge for wireless sensor networks (WSNs). A common method employed for this purpose is duty-cycled operation, which extends battery lifetime yet incurs several types of energy wastes ...
  • Detecting and mitigating the impact of wideband jammers in IEEE 802.11 WLANs 

    García Villegas, Eduard; Gómez, Moisés; López Aguilera, M. Elena; Casademont Serra, Jordi (2010)
    Conference report
    Open Access
    IEEE 802.11 Wireless LANs (WLANs) are highly sensitive to Denial of Service (DoS) attacks carried out with jamming devices. In this paper we focus on 2.4GHz wideband constant jammers. The interest in the wideband jammer ...
  • El protocol Mobile IP. La mobilitat a Internet (II Part) 

    Vidal Ferré, Rafael; Paradells Aspas, Josep; Casademont Serra, Jordi (2006-12)
    Article
    Open Access
  • El protocol Mobile IPv6. La mobilitat a Internet (i III Part) 

    Vidal Ferré, Rafael; Paradells Aspas, Josep; Casademont Serra, Jordi (2007-03)
    Article
    Open Access
  • Energy efficient wireless networking of sensor nodes 

    Seyfettin Demirkol, Ilker; Paradells Aspas, Josep; Oller Bosch, Joaquim; Casademont Serra, Jordi; Calveras Augé, Anna M.; Catalán Cid, María Luisa (2013)
    Conference report
    Open Access
    Wireless sensor networks have paved the way to a new era in user applications, where information can be sensed, processed, and distributed from remote environments with minimal or no human interaction. As the sensor nodes ...
  • Enhancement proposal for WLAN IEEE 802.11e: desynchronization of its working procedure 

    López Aguilera, M. Elena; Casademont Serra, Jordi; Cotrina Navau, Josep; Rojas Espinosa, Alfonso (Institute of Electrical and Electronics Engineers, 2005)
    Conference report
    Open Access
    Up to the present, several studies have been performed in order to provide prioritization of stations or classes of service for WLAN IEEE 802.11. The IEEE 802.11e draft specification aims to extend the original IEEE 802.11 ...
  • Evaluación de IEEE 802.11g en un entorno celular exterior 

    López Aguilera, M. Elena; Casademont Serra, Jordi; Cotrina Navau, Josep (2004-11)
    Conference report
    Open Access
    La mayoría de estudios que se encargan de analizar el comportamiento de IEEE 802.11 se encuentran limitados a entornos unicelulares. Sin embargo, la idea de diseñar una red celular basada en IEEE 802.11 resulta muy ...
  • Evaluating wireless LAN access methods in presence of transmission errors 

    López Aguilera, M. Elena; Heusse, Martin; Rousseau, Franck; Duda, Andrzej; Casademont Serra, Jordi (Institute of Electrical and Electronics Engineers, 2006-04)
    Conference report
    Open Access
    Several modifications of the IEEE 802.11 DCF access method have been proposed recently to improve the performance of wireless LANs. Up to now, such proposals have only been compared under ideal channel conditions. In this ...
  • Evaluation of IEEE 802.11 coexistence in WLAN deployments 

    López Aguilera, M. Elena; García Villegas, Eduard; Casademont Serra, Jordi (Springer, 2017-06-17)
    Article
    Open Access
    Wi-Fi has become a successful technology since the publication of its first WLAN standard due to continuous advances and updates while remaining always backwards compatible. Backwards compatibility among subsequent standards ...
  • Examen Final 

    Calveras Augé, Anna M.; Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 2013-06-17)
    Exam
    Restricted access to the UPC academic community
  • Examen Final 

    Casademont Serra, Jordi; Hesselbach Serra, Xavier (Universitat Politècnica de Catalunya, 2018-06-15)
    Exam
    Restricted access to the UPC academic community
  • Examen Final 

    Hesselbach Serra, Xavier; Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 2014-01-15)
    Exam
    Restricted access to the UPC academic community
  • Examen Final 

    Hesselbach Serra, Xavier; Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 2014-06-25)
    Exam
    Restricted access to the UPC academic community
  • Examen Final 

    Casademont Serra, Jordi; Hesselbach Serra, Xavier (Universitat Politècnica de Catalunya, 2015-06-05)
    Exam
    Restricted access to the UPC academic community
  • Examen Final 

    Hesselbach Serra, Xavier; Casademont Serra, Jordi (Universitat Politècnica de Catalunya, 2015-01-13)
    Exam
    Restricted access to the UPC academic community