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Ara es mostren els items 10-29 de 53

    • 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)
      Text en actes de congrés
      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; Álvarez Suau, Maria Hortènsia (2014)
      Llibre
      Accés obert

    • Design and evaluation of ECO: an augmentative and alternative communication tool 

      Guasch Murillo, Daniel; Martín Escalona, Israel; Macías Iglesias, Jose Antonio; Francisco Gilmartín, Virginia; Hervás Ballesteros, Raquel; Moreno López, Lourdes; Bautista Blasco, Susana (Springer, 2021-05-20)
      Article
      Accés obert
      Current technology provides new challenges to improve skills on people with special necessities. In fact, persons with com-munications needs can take advantage of new devices and mobile applications to interact and communicate ...

    • 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)
      Text en actes de congrés
      Accés obert
      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, Maarten; Martín Escalona, Israel; Fernández Fernández, Daniel (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      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 ...

    • IEEE 802.11mc ranging performance in a real NLOS environment 

      Zola, Enrica Valeria; Martín Escalona, Israel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      Since IEEE 802.11 defined a couple of enhancements that allow accurate time measurements in COTS Wi-Fi devices, the possibility of achieving precise low-cost distance estimations in Wi-Fi has become a reality. However, ...

    • 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 ...

    • Improving fingerprint-based positioning by using IEEE 802.11mc FTM/RTT observables 

      Martín Escalona, Israel; Zola, Enrica Valeria (Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-27)
      Article
      Accés obert
      Received signal strength (RSS) has been one of the most used observables for location purposes due to its availability at almost every wireless device. However, the volatile nature of RSS tends to yield to non-reliable ...

    • 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 ...