Now showing items 1-15 of 15

  • A ranging method with IEEE 802.11 data frames for indoor localization 

    Ciurana Adell, Marc; Barceló Arroyo, Francisco; Izquierdo Moreno, Fernán (IEEE, 2007-03-15)
    Conference lecture
    Open Access
    IEEE 802.11 networks constitute a suitable infrastructure for accurate indoor positioning. However, existing approaches based on fingerprinting present drawbacks that make them not suitable for most of applications. This ...
  • 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 ...
  • Contributions to TOA-based location with wlan 

    Ciurana Adell, Marc (Universitat Politècnica de Catalunya, 2010-07-15)
    Doctoral thesis
  • 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)
    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 ...
  • 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)
    Conference lecture
    Open Access
    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 ...
  • Indoor tracking in WLAN location with TOA measurements 

    Ciurana Adell, Marc; Barceló Arroyo, Francisco; Cugno, Sebastiano (ACM, 2006-10-01)
    Conference report
    Open Access
    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 ...
  • Middleware for positioning in cellular networks 

    Martín Escalona, Israel; Barceló Arroyo, Francisco; Ciurana Adell, Marc (2011-04-23)
    Part of book or chapter of book
    Restricted access - author's decision
  • On the Resolution of position ambiguity when integrating GNSS and WLAN observables 

    Fernández, Daniel; Ciurana Adell, Marc; Jofre, Martí; Gutiérrez, Esteban; Chester, Ed; Barceló Arroyo, Francisco; Martín Escalona, Israel (2010)
    Conference report
    Restricted access - publisher's policy
    This contribution proposes a positioning system that fuses GPS pseudoranges and WLAN ranges when fewer than four GPS satellites are available. In order to enhance as much as possible the positioning availability, a tight ...
  • Performance evaluation of a TOA-based trilateration method to locate terminals in WLAN 

    Izquierdo Moreno, Fernán; Ciurana Adell, Marc; Barceló Arroyo, Francisco; Paradells Aspas, Josep; Zola, Enrica Valeria (IEEE, 2006-01)
    Open Access
  • Performance of a time-of-arrival technique for positioning WLAN terminals 

    Izquierdo, F; Ciurana Adell, Marc; Barceló Arroyo, Francisco; Paradells Aspas, Josep (2006-06-30)
    Conference report
    Open Access
    Nowadays, several systems are available for outdoor location (i.e GPS, cellular networks based…). However, there is no proper location system for indoor scenarios. The technique presented in this paper proposes the use of ...
  • Performance stability of software ToA-based ranging in WLAN 

    Ciurana Adell, Marc; Giustiniano, Domenico; Neira, Albert; Barceló Arroyo, Francisco; Martín Escalona, Israel (2010)
    Conference report
    Restricted access - publisher's policy
    This article proposes a set of strategies to improve the performance stability and reliability of purely software ToA-based ranging with off-the-shelf WLAN equipment. Taking as starting point the core design lines proposed ...
  • Positioning terminals in mobile computing networks 

    Barceló Arroyo, Francisco; Martín Escalona, Israel; Ciurana Adell, Marc (2013-03-27)
    Article
    Open Access
  • Sistema de geolocalització de vehicles indoor / outdoor 

    Ciurana Adell, Marc (Universitat Politècnica de Catalunya, 2014-12)
    Master thesis (pre-Bologna period)
    Restricted access - confidentiality agreement
    Solució de posicionament precís ubic i en temps real per a vehicles, basat en l'ús de xarxes Wi-Fi i de posicionament per satèl·lit. Es desplega en la pròpia unitat embarcada del vehicle. La principal característica ...
  • SofTOA: software ranging for TOA-based positioning of WLAN terminals 

    Ciurana Adell, Marc; López Bueno, David; Barceló Arroyo, Francisco (Springer Verlag, 2009)
    Conference report
    Restricted access - publisher's policy
    TOA-based trilateration constitutes an interesting choice to locate terminals employing WLAN networks. A major limitation of this technique is the requirement for hardware modifications in the WLAN device in order to achieve ...