Ad Hoc Networks. 7th International Conference, AdHocHets 2015, San Remo, Italy, September 1–2, 2015, Proceedings

Research Article

From the Characterization of Ranging Error to the Enhancement of Nodes Localization for Group of Wireless Body Area Networks

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  • @INPROCEEDINGS{10.1007/978-3-319-25067-0_15,
        author={Anis Ouni and Jihad Hamie and Claude Chaudet and Arturo Guizar and Claire Goursaud},
        title={From the Characterization of Ranging Error to the Enhancement of Nodes Localization for Group of Wireless Body Area Networks},
        proceedings={Ad Hoc Networks. 7th International Conference, AdHocHets 2015, San Remo, Italy, September 1--2, 2015, Proceedings},
        proceedings_a={ADHOCNETS},
        year={2015},
        month={9},
        keywords={Body Area Networks Group Navigation Ultra Wideband Ranging error localization EKF},
        doi={10.1007/978-3-319-25067-0_15}
    }
    
  • Anis Ouni
    Jihad Hamie
    Claude Chaudet
    Arturo Guizar
    Claire Goursaud
    Year: 2015
    From the Characterization of Ranging Error to the Enhancement of Nodes Localization for Group of Wireless Body Area Networks
    ADHOCNETS
    Springer
    DOI: 10.1007/978-3-319-25067-0_15
Anis Ouni1,*, Jihad Hamie1, Claude Chaudet1, Arturo Guizar2, Claire Goursaud2
  • 1: Telecom ParisTech, CNRS LTCI UMR 5141
  • 2: University of Lyon, INRIA, INSA Lyon, CITI-INRIA
*Contact email: anis.ouni@telecom-paristech.fr

Abstract

Time-based localization in Wireless Body Area Networks (WBANs), has attracted growing research interest for the last past years. Nodes positions can be estimated based on peer-to-peer radio transactions between devices. Indeed, the accuracy of the localization process could be highly affected by different factors, such as the WBAN channels where the signal is propagating through, as well as the nodes mobility that bias the peer-to-peer range estimation, and thus, the final achieved localization accuracy. The goal of this paper consists in characterizing the impact of mobility and WBAN channel on the ranging and localization estimation, based on real mobility traces acquired through a motion capture system. More specifically, the ranging error is evaluated over all the WBANs links (i.e. on-body, off-body and body-to-body links), while an impulse Radio UltraWideband (IR-UWB) physical layer, as well as a TDMA-based Medium Access Control (MAC) are playing on. The simulation results show that the range measurement error can be modeled as a Gaussian distribution. To deal with the gaussianity observation of ranging error and to provide high positioning accuracy, an adjustable extended Kalman Filter (EKF) is proposed.