Ara es mostren els items 21-40 de 73

    • DYMO self forwarding: a simple way for reducing the routing overhead in MANETs 

      Zola, Enrica Valeria; Barceló Arroyo, Francisco; Martín Escalona, Israel (HINDAWI, 2017-04)
      Article
      Accés obert
      Current routing protocols in Mobile Ad hoc Networks tend to use information on the position of the nodes in order to improve their features. In fact, without this information, protocols are hardly scalable since they tend ...
    • Energy and delay-constrained routing in mobile ad hoc networks: an initial approach 

      Sánchez Miquel, Laura; Vassileva Vesselinova, Natalia; Barceló Arroyo, Francisco; Carbajo Flores, Patricia (ACM, 2005-10)
      Text en actes de congrés
      Accés obert
      Energy conservation is a critical issue regarding wireless mobile ad hoc networks, since the nodes are battery restrained and the depletion of their power defines the lifetime of the network. In this work a mechanism for ...
    • Expected bit rate for terminals moving according to the random waypoint model in a WLAN cell 

      Zola, Enrica Valeria; Barceló Arroyo, Francisco; Kassler, Andreas; Dely, Peter (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The IEEE 802.11 standard defines the different bit rates and modulation schemes to which a WLAN device may adapt according to the channel quality. User mobility may also have an impact on the available bit rate. This paper ...
    • Fusion of WLAN and GNSS observables for positioning in urban areas: the position ambiguity 

      Fernández, Daniel; Barceló Arroyo, Francisco; Martín Escalona, Israel; Ciurana Adell, Marc; Jofre, Martí; Gutiérrez, Esteban (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper proposes a positioning method that combines GPS pseudoranges and WLAN ranges when less than four GPS satellites are within sight. To enhance the positioning availability, a tight hybridization approach with both ...
    • Guard capacity implementation in OPNET modeler WiMAX suite 

      Vassileva Vesselinova, Natalia; Koucheryavy, Yevgeni; Barceló Arroyo, Francisco (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Admission Control (AC) algorithms in mobile cellular networks support continuity of active communication sessions by guaranteeing availability of free resources. In this paper, we first describe the factors that condition ...
    • Impact of mobility models on the cell residence time in WLAN networks 

      Zola, Enrica Valeria; Barceló Arroyo, Francisco (2009-03)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Several mobility models are available for simulating WLAN, with different impacts on network performance. This work deals with the impact of the assumed mobility model on two key teletraffic variables involved in the ...
    • Impact of the range and geometry estimation in the accuracy of the passive TDOA algorithm 

      Martín Escalona, Israel; Barceló Arroyo, Francisco; Zola, Enrica Valeria (2012)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The positioning ability is essential in mobile networks. Providing the position of entities is in general a complex task that becomes especially hard in ad hoc networks. In these networks, the topology cannot be planned ...
    • Impact of unreliable positioning in location-based routing protocols for MANETs 

      Martín Escalona, Israel; Perrone, Fabio; Zola, Enrica Valeria; Barceló Arroyo, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      MANETs have been focusing the interest of researchers for several years. The new scenarios where MANETs are being deployed make that several challenging issues remain open: node scalability, energy efficiency, network ...
    • Impacto del modelo de error en distancia en la simulación de sistemas de localización 

      Guardiola, Salvador; Martín Escalona, Israel; Barceló Arroyo, Francisco; Ciurana Adell, Marc (2010)
      Comunicació de congrés
      Accés obert
      Las redes inalámbricas han favorecido enormemente el interés de los usuarios, proveedores de servicio y operadores de red en el posicionamiento geográfico. Como consecuencia, se han propuesto mecanismos en la mayor parte ...
    • Implementación en el espacio de usuario del protocolo de encaminamiento AODVv2 

      Machado Sánchez, Sergio; Martín Escalona, Israel; Zola, Enrica Valeria; Barceló Arroyo, Francisco; Ozón Górriz, Francisco Javier (Jornadas de Ingeniería Telemática (JITEL), 2021)
      Text en actes de congrés
      Accés obert
      El protocolo AODV es un protocolo reactivo de encaminamiento para redes MANET que se utiliza frecuentemente como referencia tanto para desarrollar nuevos protocolos de encaminamiento en redes ad hoc como para evaluar su ...
    • Implementation and analysis of the AODVv2 routing protocol in ARM devices 

      Zola, Enrica Valeria; Martín Escalona, Israel; Barceló Arroyo, Francisco; Machado Sánchez, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      AODVv2 is a well-known routing protocol used in MANETs (Mobile Ad hoc Networks). Formerly known as DYMO (DYnamic MANET On-demand), it is frequently used as a reference for routing protocols assessment. However, implementations ...
    • Implementation and performance assessment of location-based routing protocols for MANETs 

      Martín Escalona, Israel; Zola, Enrica Valeria; Perrone, Fabio; Barceló Arroyo, Francisco; Machado Sánchez, Sergio (Association for Computing Machinery (ACM), 2017)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Mobile ad-hoc networking is a topic that has caught the interest of the research community for years. Although MANETs were introduced time ago, routing in such difficult environments is still an open issue. Routing protocols ...
    • Indoor tracking in WLAN location with TOA measurements 

      Ciurana Adell, Marc; Barceló Arroyo, Francisco; Cugno, Sebastiano (ACM, 2006-10-01)
      Text en actes de congrés
      Accés obert
      Authors presented recently an indoor location technique based on Time Of Arrival (TOA) obtained from Round-Trip-Time (RTT) measurements at data link level and trilateration. This new approach uses the existing IEEE 802.11 ...
    • Inter-arrival time distribution for channel arrivals in cellular telephony 

      Sánchez Rodríguez, José Ignacio; Barceló Arroyo, Francisco; Jordán Parra, Javier (1998)
      Text en actes de congrés
      Accés obert
    • Linux-based measuring platform for time-based location observables in IEEE 802.11 networks 

      Martín Escalona, Israel; Barceló Arroyo, Francisco; Zola, Enrica Valeria (University of Bern, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Positioning has been a hot topic in research for several years. GPS is accepted as a global solution for positioning outdoors, but indoor positioning still remains an open issue. Time-based multilateration techniques are ...
    • Mean waiting time in the M/H2/s queue: application to mobile communications Systems 

      Barceló Arroyo, Francisco; Paradells Aspas, Josep; Aguilar Igartua, Mónica (Wissenschaft & Technik, 1997)
      Comunicació de congrés
      Accés obert
      In this paper a procedure to approximately calculate the mean waiting time in the M/H2/s queue is presented. The approximation is heuristic although based in the intuitive symmetry between the deterministic and balanced ...
    • Middleware for positioning in cellular networks 

      Martín Escalona, Israel; Barceló Arroyo, Francisco; Ciurana Adell, Marc (2011-04-23)
      Capítol de llibre
      Accés restringit per decisió de l'autor
    • Middleware-controlled resource consumption for location traffic in cellular networks 

      Martín Escalona, Israel; Barceló Arroyo, Francisco (2007)
      Article
      Accés restringit per política de l'editorial
      Location is valuable information for services implemented in wireless networks. Location systems often use the infrastructure of cellular networks that have already been deployed. Accordingly, location systems spend resources ...
    • Multi-objective optimization of WLAN associations with improved handover costs 

      Zola, Enrica Valeria; Barceló Arroyo, Francisco; Kassler, Andreas (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      The deployment of a large number of access points in public areas presents a new paradigm in which a given station may be served by more than one access point at a time. Recently, a network model has been proposed to derive ...
    • New trends in mobility modelling and handover prediction 

      Barceló Arroyo, Francisco; Gorawski, Michal; Grochla, Krzysztof; Martín Escalona, Israel; Polys, Konrad; Ribeiro, Andrea G.; Sofia, Rute; Zola, Enrica Valeria (Springer, 2014)
      Capítol de llibre
      Accés restringit per política de l'editorial
      Wireless networks of moving objects have drawn significant attention recently. These types of networks consist of a number of autonomous or semi-autonomous wireless nodes/objects moving with diverse patterns and speeds ...