Recent Submissions

  • Model-based processing for acoustic scene analysis 

    Nadeu Camprubí, Climent; Chakraborty, Rupayan; Wolf, Martin (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    The analysis of acoustic scenes requires several functionalities, being perhaps recognition (speech, speaker, other acoustic events) and spatial localization the two most relevant ones. For a reduced invasiveness, ...
  • On the feasibility of Bluetooth, Zigbee and IEEE 802.15.4 technologies on board high speed trains 

    Higuera Portilla, Jorge Eduardo; Kartsakli, Elli; Valenzuela González, José Luis; Alonso Zárate, Luis Gonzaga (2011)
    Conference report
    Open Access
    This paper studies the feasibility of using low-power wireless technologies such as Bluetooth, IEEE 802.15.4 and ZigBee in high-speed railway scenarios that involve bidirectional land-to-train communication. The presented ...
  • QoS guarantee for wireless LAN with heterogeneous traffic 

    Alonso Zárate, Luis Gonzaga; Kartsakli, Elli; Alonso Zárate, Jesús; Verikoukis, Christos (2009)
    Conference report
    Open Access
    Distributed Queuing Collision Avoidance (DQCA) is an efficient MAC protocol designed for infrastructure Wireless LANs. In this paper, four algorithms are proposed that alter the FIFO scheduling order of DQCA in order to ...
  • Evaluación de algoritmos Cross-Layer para la optimización de sistemas de comunicaciones inalámbricas 

    Alonso Zárate, Jesús; Ramos, I.; Kartsakli, Elli; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (TELECOM I+D 2006, 2006-12-31)
    Conference lecture
    Restricted access - publisher's policy
    En el presente trabajo se proponen siete diferentes técnicas cross-layer diseñadas para mejorar la eficiencia de redes inalámbricas ad hoc, operando con el protocolo de acceso al medio definido en el estándar 802.11. ...
  • A near-optimum medium access protocol based on the distributed queueing random access protocol (DQRAP) for a CDMA third generation mobile communication system 

    Alonso Zárate, Luis Gonzaga; Agustí Comes, Ramon; Sallent Roig, José Oriol (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Conference report
    Restricted access - publisher's policy
    This paper presents and analyses a new near– optimum random access protocol. The proposed access scheme is suitable for a CDMA environment and minimises the total number of spreading codes needed to achieve a certain ...
  • Capacity and coverage tradeoff in WCDMA environments with repeaters deployment 

    García, Lozano M; Alonso Zárate, Luis Gonzaga; Casadevall Palacio, Fernando José; Ruiz Boqué, Sílvia (Institute of Electrical and Electronics Engineers (IEEE), 2005-09-30)
    Conference lecture
    Restricted access - publisher's policy
    This paper derives the analytic expression of the feasibility condition for the uplink of a WCDMA mobile communications system with repeaters in a multiservice environment with a general heterogeneous layout. In particular, ...
  • Gestión distribuida con calidad de servicio garantizada para sistemas de transmisión por paquetes en entornos CDMA 

    Alonso Zárate, Luis Gonzaga; Agustí Comes, Ramon; Sallent Roig, José Oriol (ETSETB UPC, 2000-11-30)
    Conference lecture
    Open Access
    En esta comunicación se presenta una estrategia de gestión distribuida para poder garantizar una cierta calidad de servicio en conexiones cuya transmisión se realiza en modo paquete. El entorno de trabajo son los sistemas ...
  • Análisis de un mecanismo de ahorro de energía mediante lógica fuzzy para la mejora de sistemas WLAN 802.11 

    Otal, B; Alonso Zárate, Luis Gonzaga (Univ. Jaen, 2004)
    Conference lecture
    Restricted access - publisher's policy
    La mayoría de los protocolos de acceso al medio, los llamados protocolos MAC (Medium Access Control), para sistemas WLAN (Wireless Local Area Network), fijan una potencia de transmisión constante sin considerar técnicas ...
  • Persistent RCSMA: a MAC protocol for a distributed cooperative ARQ scheme in wireless networks 

    Alonso-Zárate, Jesús; Kartsakli, Elli; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (HINDAWI, 2008-04-09)
    Article
    Open Access
    The persistent relay carrier sensing multiple access (PRCSMA) protocol is presented in this paper as a novel medium access control (MAC) protocol that allows for the execution of a distributed cooperative automatic ...
  • Development and experimentation towards a multicast-enabled Internet 

    Careglio, Davide; Papadimitriou, Dimitri; Agraz Bujan, Fernando; Sahhaf, S; Perelló Muntan, Jordi; Tavernier, W; Spadaro, Salvatore; Colle, Didier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    In this paper, we report our development experience and experimentation studies of two multicast routing schemes for the Internet, namely, PIM-SSM and GCMR. We detail their implementation over the Quagga open ...

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