Now showing items 1-20 of 44

    • A field study on satellite and cellular 

      Gete-Alonso Roldán, Óscar; Martín Escalona, Israel; Barceló Arroyo, Francisco (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Conference report
      Restricted access - publisher's policy
      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
      Restricted access - publisher's policy
      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)
      Conference report
      Restricted access - publisher's policy
      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 Robust user association, backhaul routing and switching off model for a 5G network with variable traffic demands 

      Zola, Enrica Valeria; Martín Escalona, Israel (Institute of Electrical and Electronics Engineers (IEEE), 2020-05-13)
      Article
      Open Access
      With the expected increase in data traffic (e.g., video) and in the user devices generating new traffic (e.g., device-to-device communication, Internet of Things, etc.), the evolution of next-generation mobile networks ...
    • 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)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference report
      Restricted access - publisher's policy
      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 ...
    • A user space implementation of the AODVv2 routing protocol 

      Machado Sánchez, Sergio; Martín Escalona, Israel; Zola, Enrica Valeria; Barceló Arroyo, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      Ad hoc On Demand Distance Vector Routing (AODV) protocol is a reactive MANET routing protocol frequently used as reference for either developing new ad hoc routing protocols or performance assessment purposes. Although it ...
    • Chapter 4: Mobility Support 

      Barceló Arroyo, Francisco; Aguayo-Torres, M.C.; Al Begain, K.; Martín Escalona, Israel; Vassilou, V. (SPRINGER-VERLAG., 2009)
      Part of book or chapter of book
      Restricted access - publisher's policy
      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
      Restricted access - publisher's policy
      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
      Restricted access - publisher's policy
      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)
      Conference report
      Open Access
      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)
      Book
      Open Access
    • 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
      Open Access
      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)
      Part of book or chapter of book
      Open Access
    • 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
      Open Access
      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)
      Conference report
      Open Access
      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)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference report
      Open Access
      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)
      Conference lecture
      Restricted access - publisher's policy
      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 ...