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Ara es mostren els items 114-133 de 201

    • Game theoretic approach for switching off base stations in multi-operator environments 

      Bousia, Alexandra; Kartsakli, Elli; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The emerging increase of the number of Base Stations causes redundant energy consumption, especially during low traffic periods, when the Base Stations capacity is underutilized. In this paper, we study energy efficiency ...

    • Game theoretic infrastructure sharing in wireless cellular network 

      Bousia, Alexandra; Kartsakli, Elli; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (IGI Global, 2015-08)
      Capítol de llibre
      Accés restringit per política de l'editorial
      The emerging traffic demand has fueled the rapid densification of cellular networks. The increased number of Base Stations (BSs) leads to augmented energy consumption and expenditures for the Mobile Network Operators ...

    • Game-theoretic infrastructure sharing in multioperator cellular networks 

      Bousia, Alexandra; Kartsakli, Elli; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2016-05)
      Article
      Accés obert
      The introduction of fourth-generation wireless technologies has fueled the rapid development of cellular networks, significantly increasing the energy consumption and the expenditures of mobile network operators (MNOs). ...

    • 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, Oriol (ETSETB UPC, 2000-11-30)
      Comunicació de congrés
      Accés obert
      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 ...

    • Goodbye, ALOHA! 

      Laya, Andrés; Kalalas, Charalampos; Vázquez Gallego, Francisco; Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2016-04-21)
      Article
      Accés obert
      The vision of the Internet of Things (IoT) to interconnect and Internet-connect everyday people, objects, and machines poses new challenges in the design of wireless communication networks. The design of medium access ...

    • "Green" distance-aware base station sleeping algorithm in LTE-advanced 

      Bousia, Alexandra; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, we propose a switch on/off algorithm for Base Stations (BSs), which exploits the knowledge of the distance between the User Equipments (UEs) and their associated BS. Our novel approach hopes to provide ...

    • GREENET – An early stage training network in enabling technologies for green radio 

      Alonso Zárate, Luis Gonzaga; Di Renzo, Marco; Fitzek, Frank H.P.; Granelli, Fabrizio; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2011)
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      In this paper, we describe GREENET (an early stage training network in enabling technologies for green radio), which is a new project recently funded by the European Commission under the auspices of the 2010 Marie Curie ...

    • Handoff functions for a distributed queuing collision avoidance medium access control protocol for wireless LANs 

      Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús; Kartsakli, Elli; Antonopoulos, Angelos; Verikoukis, Christos (2009)
      Comunicació de congrés
      Accés obert

    • Herramienta para el desarrollo de algoritmos de gestión de recursos radio en sistemas LMDS 

      Alonso Zárate, Luis Gonzaga; Pérez Romero, Jordi; Sallent Roig, Oriol; Poza, M (Universidad Carlos III de Madrid, 2003)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      El sistema Local Multipoint Distribution System (LMDS) es una de las tecnologías emergentes de acceso inalámbrico de banda ancha a la Internet. Existen algunas líneas de investigación abiertas en la actualidad que están ...

    • Hybrid access techniques for densely populated wireless local area networks 

      Alonso-Zarate, J.; Crespo, Cristian; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (INTECH, 2011-03)
      Capítol de llibre
      Accés obert

    • Impact of correlated log-normal shadowing on two-way network coded cooperative wireless networks 

      Lalos, Aristeidis; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2013-09)
      Article
      Accés restringit per política de l'editorial
      In this letter, we provide a novel theoretical framework for studying the effects of correlated shadowing, in the number of relays that are capable of helping two nodes (sources) to exchange their messages. The relays use ...

    • Improving the energy-efficiency of machine-to-machine communications with cooperative ARQ 

      Alonso Zárate, Jesús; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The energy-efficiency of Machine-to-Machine (M2M) communications can be improved by applying cooperation at the medium access control (MAC) layer. This means that machines can help each other to establish an energy-efficient ...

    • Information exchange in randomly deployed dense WSNs with wireless energy harvesting capabilities 

      Mekikis, Prodromos Vasileios; Antonopoulos, Angelos; Kartsakli, Elli; Lalos, Aristeidis; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2016-04-01)
      Article
      Accés obert
      As large-scale dense and often randomly deployed wireless sensor networks (WSNs) become widespread, local information exchange between colocated sets of nodes may play a significant role in handling the excessive traffic ...

    • Is the random access channel of LTE and LTE-A suitable for M2M communications? A survey of alternatives 

      Laya Romero, Andrés Ernesto; Alonso Zárate, Luis Gonzaga; Alonso-Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Article
      Accés restringit per política de l'editorial
      The 3GPP has raised the need to revisit the design of next generations of cellular networks in order to make them capable and efficient to provide M2M services. One of the key challenges that has been identified is the ...

    • Joint uplink and downlink cell selection in cognitive small cell heterogeneous networks 

      Mesodiakaki, Agapi; Adelantado Freixer, Ferran; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014)
      Text en actes de congrés
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      In the next few years, small cells (SCs) are about to be densely deployed to achieve sustainable capacity enhancement. Due to the expected high SC density, some SCs will not have a direct connection to the core network, ...

    • La evaluación en PBL: un caso práctico 

      García Lozano, Mario; Pérez Díaz de Cerio, David; Valenzuela González, José Luis; Gelonch Bosch, Antonio José; Alonso Zárate, Luis Gonzaga; Ruiz Boqué, Sílvia (2008)
      Text en actes de congrés
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      Las ventajas de estructurar una asignatura, un conjunto o incluso todo un plan de estudios mediante Aprendizaje Basado en Proyectos (PBL) han sido ampliamente expuestas de forma teórica y práctica ...

    • La prueba piloto de adaptación al EEES en la Escuela Politécnica Superior de Castelldefels 

      Alonso Zárate, Luis Gonzaga; Collado Gómez, Juan Carlos; Hernández Marco, Jordi; Ruiz Boqué, Sílvia; Valero García, Miguel (Universidad Jaume I, 2008)
      Comunicació de congrés
      Accés obert
      La prueba piloto de adaptación al EEES que se ha llevado a cabo en la Escuela Politécnica Superior de Castelldefels entre 2004 y 2007 ha motivado una importante actividad innovadora que nos ha permitido extraer numerosas ...

    • Low-overhead heuristic algorithms for spectrum sensing in cognitive radio networks 

      Miliotis, Vasileios; Koutsopoulos, Iordanis; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (VDE Conference Publications, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Cognitive Radio (CR) has matured as a research field and has the goal to improve the utilization of spectrum. This technology enables a CR user to function in unlicensed or licensed bands without causing interference to ...

    • LPDQ: a self-scheduled TDMA MAC protocol for one-hop dynamic lowpower wireless networks 

      Tuset-Peiro, Pere; Vázquez-Gallego, Francisco; Alonso-Zárate, Jesús; Alonso Zárate, Luis Gonzaga; Vilajosana, Xavier (Elsevier, 2015-07)
      Article
      Accés obert
      Current Medium Access Control (MAC) protocols for data collection scenarios with a large number of nodes that generate bursty traffic are based on Low-Power Listening (LPL) for network synchronization and Frame Slotted ...

    • MAC-PHY enhancement for 802.11b WLAN systems via cross-layering 

      Alonso Zárate, Luis Gonzaga; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2003)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The paper analyses the performance of a novel MAC-PHY scheme for wireless local area networks (WLAN) that makes use of distributed queues and cross-layer concepts to improve radio channel utilisation. Analytical values for ...