Now showing items 1-20 of 21

  • A centrality-based topology control protocol for wireless mesh networks 

    Vázquez Rodas, Andrés; Cruz Llopis, Luis Javier de la (Elsevier, 2015-01-01)
    Article
    Open Access
    Nodes in wireless multi-hop networks establish links with their neighbors, which are used for data transmission. In general, in this kind of networks every node has the possibility of acting as a router, forwarding the ...
  • A game-theoretic multipath routing for video-streaming services over mobile Ad Hoc networks 

    Aguilar Igartua, Mónica; Cruz Llopis, Luis Javier de la; Carrascal Frías, Víctor; Sanvicente Gargallo, Emilio (2011-06-25)
    Article
    Restricted access - publisher's policy
    The number of portable devices capable of maintaining wireless communications has increased considerably in the last decade. Such mobile nodes may form a spontaneous self-configured network connected by wireless links to ...
  • A joint multi-path and multi-channel protocol for traffic routing in smart grid neighborhood area networks 

    Astudillo León, Juan Pablo; Cruz Llopis, Luis Javier de la (Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-20)
    Article
    Open Access
    In order to improve the management mechanisms of the electric energy transport infrastructures, the smart grid networks have associated data networks that are responsible for transporting the necessary information between ...
  • A multimetric, map-aware routing protocol for VANETs in urban areas 

    Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica; Rebollo Monedero, David; Cruz Llopis, Luis Javier de la; Mezher, Ahmad Mohamad; Aguilar-Calderón, José Alfonso (2014-01-28)
    Article
    Open Access
    In recent years, the general interest in routing for vehicular ad hoc networks (VANETs) has increased notably. Many proposals have been presented to improve the behavior of the routing decisions in these very changeable ...
  • A multi-user game-theoretical multipath routing protocol to send video-warning messages over mobile ad hoc networks 

    Mezher, Ahmad Mohamad; Aguilar Igartua, Mónica; Cruz Llopis, Luis Javier de la; Pallarès Segarra, Esteve; Tripp Barba, Carolina; Urquiza Aguiar, Luis; Fornés Guardia, Jordi; Sanvicente Gargallo, Emilio (2015-04-17)
    Article
    Open Access
    The prevention of accidents is one of the most important goals of ad hoc networks in smart cities. When an accident happens, dynamic sensors (e.g., citizens with smart phones or tablets, smart vehicles and buses, etc.) ...
  • Circuit model for mode conversion in coplanar waveguide asymmetric series-impedances 

    Ribó i Pal, Miquel; Cruz Llopis, Luis Javier de la; Pradell i Cara, Lluís (IEE-INST ELEC ENG, 1999-10-31)
    Article
    Open Access
    A new `circuit model' for converting between even and odd modes in asymmetric series impedances in the ground plane of a coplanar waveguide is presented. The model is based on the separation of modes into two input and two ...
  • Circuit model for slotline-to-coplanar waveguide asymmetrical transitions 

    Ribó i Pal, Miquel; Cruz Llopis, Luis Javier de la; Pradell i Cara, Lluís (IEE-INST ELEC ENG, 1999-07-31)
    Article
    Open Access
    A new `circuit-model' for slotline-to-coplanar waveguide asymmetrical transitions is presented and applied to the design of slotline resonators. The model, based on the separation of coplanar-waveguide (CPW) modes into two ...
  • Contribución a la regulación del tráfico en Redes ATM: aplicación al tráfico de vídeo 

    Cruz Llopis, Luis Javier de la (Universitat Politècnica de Catalunya, 1999-02-10)
    Doctoral thesis
    Open Access
    De entre los nuevos servicios ofrecidos por las actuales redes de banda ancha, los que incluyen la transmisión de secuencias de vídeo se convertirán en un futuro próximo en algunos de los más solicitados por los usuarios. ...
  • Dimensionado dinámico de buffers para flujos de tráfico diferenciados no elásticos 

    Vázquez Rodas, Andrés; Cruz Llopis, Luis Javier de la; Aguilar Igartua, Mónica; Sanvicente Gargallo, Emilio (2013)
    Conference report
    Restricted access - publisher's policy
    El dimensionado del tamaño de los buffers de almacenamiento de paquetes en los equipos de red es un aspecto fundamental debido a sus consecuencias directas sobre la calidad de servicio observada por los usuarios finales. ...
  • Dynamic buffer sizing for wireless devices via maximum entropy 

    Vázquez Rodas, Andrés; Cruz Llopis, Luis Javier de la; Aguilar Igartua, Mónica; Sanvicente Gargallo, Emilio (2014-05-15)
    Article
    Restricted access - publisher's policy
    Buffer overflow is an important phenomenon in data networks that has much bearing on the overall network performance. Such overflow critically depends on the amount of storage space allotted to the transmission channels. ...
  • Dynamic framework with adaptive contention window and multipath routing for video-streaming services over mobile ad hoc networks 

    Aguilar Igartua, Mónica; Carrascal Frías, Víctor; Cruz Llopis, Luis Javier de la; Sanvicente Gargallo, Emilio (2012-06-01)
    Article
    Restricted access - publisher's policy
    The number of portable electronic devices capable of maintaining wireless communications increases day by day. Such mobile nodes may easily self-configure to form a Mobile Ad Hoc Network (MANET) without the help of any ...
  • Emergency aware congestion control for smart grid neighborhood area networks 

    Astudillo León, Juan Pablo; Cruz Llopis, Luis Javier de la (Elsevier, 2019-10-01)
    Article
    Restricted access - confidentiality agreement
    The evolution of traditional electricity distribution infrastructures towards Smart Grid networks has generated the need to carry out new research. There are many fields that have attracted the attention of researchers, ...
  • Importance Sampling based on Adaptive Principal Component Analysis 

    Rosell Gratacòs, Jan; Cruz Llopis, Luis Javier de la; Pérez, Alexander; Suárez Feijóo, Raúl (IEEE, 2011)
    Conference report
    Open Access
    Sampling-based approaches are currently the most efficient ones to solve path planning problems, being their performance dependant on the ability to generate samples in those areas of the configuration space relevant to ...
  • Load splitting in clusters of video servers 

    Cruz Llopis, Luis Javier de la; Vázquez Rodas, Andrés; Sanvicente Gargallo, Emilio; Aguilar Igartua, Mónica (2012-03-07)
    Article
    Restricted access - publisher's policy
    Nowadays, video on demand is one of the services more highly appreciated and demanded by customers. As the number of users increases, the capacity of the system that provides these services must also be increased to guarantee ...
  • MAX-MIN based buffer allocation for VANETs 

    Urquiza Aguiar, Luis; Vázquez Rodas, Andrés; Tripp Barba, Carolina; Aguilar Igartua, Mónica; Cruz Llopis, Luis Javier de la; Sanvicente Gargallo, Emilio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Many proposals have studied the optimization of the EDCA mechanism used by the IEEE 802.11p MAC layer to provide QoS. In this work, we focus on the queuing process done by the different Access Categories (ACs). We propose ...
  • Multi channel allocation and congestion control for smart grid neighborhood area networks 

    Astudillo León, Juan Pablo; Cruz Llopis, Luis Javier de la (Association for Computing Machinery (ACM), 2018)
    Conference report
    Restricted access - publisher's policy
    The evolution of traditional electricity distribution infrastructures towards Smart Grid networks has generated the need to carry out new research. There are many fields that have attracted the attention of researchers, ...
  • Optimized path selection in a game-theoretic routing protocol for video-streaming services over MANETs 

    Mezher, Ahmad Mohamad; Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica; Martín Faus, Isabel Victoria; Cruz Llopis, Luis Javier de la; Sanvicente Gargallo, Emilio (2013)
    Conference report
    Restricted access - publisher's policy
    Mobile ad hoc networks (MANETs) are infrastructureless networks formed by wireless mobile devices. Recently, the demand over multimedia services such as video streaming has increased specially since the number of mobile ...
  • Redes, sistemas y servicios de comunicación : exámenes resueltos 

    Cruz Llopis, Luis Javier de la; Martín Faus, Isabel Victoria; Melus Moreno, José Luis; Pallarès Segarra, Esteve; Sanvicente Gargallo, Emilio (Iniciativa Digital Politècnica, 2010)
    Book
    Open Access
    Aquest llibre és una recopilació d'exàmens resolts corresponents als exàmens finals de l'assignatura Xarxes Sistemes i Serveis de Comunicació de la ETSETB, en la qual s'imparteixen els coneixements bàsics per a l'anàlisi, ...
  • Redes, sistemas y servicios de comunicación : problemas resueltos 

    Cruz Llopis, Luis Javier de la (Edicions UPC, 2002)
    Book
    Restricted access to the UPC academic community
    Este libro es una recopilación de problemas resueltos de Redes, Sistemas y Servicios de Comunicación, asignatura troncal de segundo ciclo de los estudios de ingeniería de telecomunicación en la Escola Tècnica Superior ...
  • The TAMESIS project: enabling technologies for the health status monitoring and secure exchange of clinical record 

    Pegueroles Vallés, Josep R.; Cruz Llopis, Luis Javier de la; Vera del Campo, Juan Victoriano; Hernández Serrano, Juan; León Abarca, Olga (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    Personal Health Systems (PHS) allow to move the point of care from hospitals to the patient's home. Moreover, a PHS usually handles much more information and provides more appropriate diagnostic and personalized treatments ...