Abstract: Widespread adoption of indoor positioning systems based on WiFi fingerprinting is at present hindered by the large efforts required for measurements collection during the offline phase. Two approaches were recently proposed to address such an issue: crowdsourcing and RSS radiomap prediction, based on either interpolation or propagation channel model fitting from a small set of measurements. RSS prediction promises better positioning accuracy when compared to crowdsourcing, but no systematic analysis of the impact of system parameters on positioning accuracy is available. This paper fills this gap by introducing ViFi, an indoor positioning system that relies on RSS prediction based on Multi-Wall Multi-Floor (MWMF) propagation model to generate a discrete RSS radiomap ( virtual fingerprints). Extensive experimental results, obtained in multiple independent testbeds, show that ViFi outperforms virtual fingerprinting systems adopting simpler propagation models in terms of accuracy, and allows a seven-fold reduction in the number of measurements to be collected, while achieving the same accuracy of a traditional fingerprinting system deployed in the same environment. Finally, a set of guidelines for the implementation of ViFi in a generic environment, that saves the effort of collecting additional measurements for system testing and fine tuning, is proposed.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    ViFi : virtual fingerprinting WiFi-based indoor positioning via multi-wall multi-floor propagation model


    Beteiligte:

    Erscheinungsdatum :

    2020-01-01


    Anmerkungen:

    1536-1233 ; IEEE transactions on mobile computing. Institute of Electrical


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    006 / 629



    Parking lot vehicle searching method and system based on WiFi indoor positioning technology

    SUN WEI / ZOU QUNXIN | Europäisches Patentamt | 2021

    Freier Zugriff



    An Example of Indoor Positioning Possibility Using WiFi Network and Mobile Phone

    Grgic, Kresimir / Balic, Luka / Krizanovic, Visnja et al. | IEEE | 2022


    Accurate and Efficient Wi-Fi Fingerprinting-Based Indoor Positioning in Large Areas

    Ramires, Moises / Torres-Sospedra, Joaquin / Moreira, Adriano | IEEE | 2022