Ara es mostren els items 1-20 de 33

  • A field study on satellite and cellular 

    Gete-Alonso Roldan, Oscar; Martín Escalona, Israel; Barceló Arroyo, Francisco (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
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    This article presents a statistical study on the availability of location sources. In particular, it rates the availability of cellular network base stations and GPS satellites in urban scenarios. Individual and joint ...
  • A field study on the fusion of terrestrial and satellite location methods in urban cellular networks 

    Barceló Arroyo, Francisco; Martín Escalona, Israel; Manente, Cyrille (2010-05-01)
    Article
    Accés restringit per política de l'editorial
    This work studies the improvement in service coverage obtained by three different approaches to combining two triangulation (terrestrial and satellite) location methods for cellular networks in an urban environment. The ...
  • A modification of DYMO routing protocol with knowledge of nodes’ position: proposal and evaluation 

    Zola, Enrica Valeria; Barceló Arroyo, Francisco; Martín Escalona, Israel (Springer, 2015)
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    Knowledge of the physical location of the nodes is known to improve performance in wireless networks. This is especially true in MANETs, where routing protocols face a continuously changing topology. In the past, routing ...
  • A software platform for measuring distances through round trip time in IEEE 802.11 

    Martín Escalona, Israel; Barceló Arroyo, Francisco; Zola, Enrica Valeria (IEEE Computer Society Publications, 2013)
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    Indoor positioning has focused the interest of researchers for years. Although there are several techniques proposed, they are difficult to reproduce and consequently to contrast and improve. This paper presents a modular ...
  • A topic on simulation in telecommunications engineering 

    Barceló Arroyo, Francisco; Martín Escalona, Israel; Zola, Enrica Valeria (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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    Topics on network simulation are often offered as elective topics or short seminars of programs on computer sciences and telecommunications engineering. In other programs simulation is offered as part of a general core ...
  • Chapter 4: Mobility Support 

    Barceló Arroyo, Francisco; Aguayo-Torres, M.C.; Al Begain, K.; Martín Escalona, Israel; Vassilou, V. (SPRINGER-VERLAG., 2009)
    Capítol de llibre
    Accés restringit per política de l'editorial
    Wireless access allows independency between the user’s position and the physical bearer used to access services from the network. However, this independency does not imply that wireless networks show a full ability to cope ...
  • Collaborative positioning in ad hoc networks using passive time-differences of arrival 

    Martín Escalona, Israel; Barceló Arroyo, Francisco; Zola, Enrica Valeria; Ciurana Adell, Marc (Bentham Science Publishers, 2015-04-08)
    Article
    Accés restringit per política de l'editorial
    Accuracy and scalability contribute to the quality of location solutions in wireless networks. While accuracy is a parameter addressed in all location technologies, scalability is often relegated. However, scalability ...
  • Comparative performance evaluation of IEEE 802.11v for positioning with time of arrival 

    Ciurana Adell, Marc; Barceló Arroyo, Francisco; Martín Escalona, Israel (2011-03)
    Article
    Accés restringit per política de l'editorial
    Time of Arrival (TOA) based techniques are expected to overcome performance limitations of existing WLAN positioning approaches. The upcoming IEEE 802.11v standard is expected to play a key role because it will include new ...
  • Coverage of Hybrid Terrestrial-Satellite Location in Mobile Communications 

    Barceló Arroyo, Francisco; Martín Escalona, Israel (VDE, 2004-02)
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    Accés obert
    This work studies the improvement in service coverage obtained by three different ways of hybridising (terrestrial and satellite) triangulation location methods for cellular networks. Though the authors assume that ...
  • Definición de un sistema global de información en materia de discapacidad en la universidad : Observatorio Universidad y Discapacidad 

    Guasch Murillo, Daniel; Hernández Galán, Jesús; Martín Escalona, Israel; Rico Novella, Francisco José; Guasch Murillo, Yolanda; Vállez Vidal, Raquel; Àlvarez Suau, Maria Hortènsia (2014)
    Llibre
    Accés obert
  • Discrete event simulation of wireless cellular networks 

    Zola, Enrica Valeria; Martín Escalona, Israel; Barceló Arroyo, Francisco (Sciyo.com, 2010-09)
    Capítol de llibre
    Accés obert
  • 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 ...
  • Easy Communicator: una experiencia de aprendizaje-servicio para el aprendizaje de todos 

    Guasch Murillo, Daniel; Martín Escalona, Israel (Editorial Universidad de Granada, 2015)
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    Desde la Cátedra de Accesibilidad de la Universidad Politécnica de Cataluña se coordina el proyecto Easy Communicator con la doble finalidad de proporcionar a los estudiantes de ingeniería experiencia en el desarrollo de ...
  • Enhanced vehicle navigation unit with wifi 802.11 ranging and communication capabilities 

    Tappero, Fabrizio; Ciurana Adell, Marc; Batlle, Jordi; Uijt de Haag, M.; Martín Escalona, Israel; Fernández Fernández, Daniel (2012)
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    This paper discusses the implementation of a modified IEEE 802.11 transceiver that is employed to enhance the positioning capabilities of a traditional vehicle on-board navigation unit (OBU). In this paper, we propose ...
  • 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)
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    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 ...
  • 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
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    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 ...
  • 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 ...
  • 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 ...
  • 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 ...