Recent Submissions

  • 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 ...
  • 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 ...
  • 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, ...
  • 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 ...
  • Novel eICIC scheme for HetNets exploiting jointly the frequency, power and time dimensions 

    Koutlia, Aikaterini; Pérez Romero, Jordi; Agustí Comes, Ramon (2014)
    Conference lecture
    Restricted access - publisher's policy
    User demand for capacity and high data rate applications imposes the need for new technologies able to cope with these challenges. Fourth Generation cellular networks have set the initiative for a technology evolution that ...
  • Extending the LTE /LTE-A business case to professional mobile radio 

    Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    With the advent of faster 4G mobile broadband networks and the proliferation of a rich ecosystem of smartphone applications in the commercial domain, expectations and demand for much more sophisticated and high-bandwidth ...
  • Hybrid sparse two-dimensional antenna array synthesis using independent compression regions 

    Yepes, Leonardo; Covarrubias, David; Alonso, Miguel A.; Ferrús Ferré, Ramón Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    A new approach to synthesize 2D planar antenna arrays with sparseness characteristics is presented. This approach uses a recently introduced technique called Hybrid Sparse Linear Array Synthesis (HSLAS). In order to ...
  • Testing cooperative communication schemes in a virtual distributed testbed of wireless networks 

    Kormentzas, Georgios; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2009)
    Conference report
    Open Access
    It is expected that Next Generation Networks (NGNs) will offer seamless interoperability among heterogeneous access technologies in order to provide ubiquitous access. In such settings, short range technologies may be used ...

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