1st International ICST Workshop on Location Based Services for Health Care

Research Article

RF-OPT: A Range-Free Online Person Tracking System

  • @INPROCEEDINGS{10.1109/PCTHEALTH.2006.361677,
        author={Jing  Wang and Xueli  An and R. Venkatesha  Prasad and I.G.M.M.  Niemegeers},
        title={RF-OPT: A Range-Free Online Person Tracking System},
        proceedings={1st International ICST Workshop on Location Based Services for Health Care},
        publisher={IEEE},
        proceedings_a={LOCARE},
        year={2007},
        month={5},
        keywords={locallzation range-free health-care Tmote},
        doi={10.1109/PCTHEALTH.2006.361677}
    }
    
  • Jing Wang
    Xueli An
    R. Venkatesha Prasad
    I.G.M.M. Niemegeers
    Year: 2007
    RF-OPT: A Range-Free Online Person Tracking System
    LOCARE
    ICST
    DOI: 10.1109/PCTHEALTH.2006.361677
Jing Wang1,*, Xueli An1,*, R. Venkatesha Prasad1,*, I.G.M.M. Niemegeers1,*
  • 1: EEMCS, Delft University of Technology, The Netherlands
*Contact email: j.wang3@ewi.tudelft.nl, x.an@ewi.tudelft.nl, vprasad@ewi.tudelft.nl, ignas.n@ewi.tudelft.nl

Abstract

In this paper, we present an indoor localization scheme which is built for location-based services for context-aware applications in health-care. We set forth from our earlier work on localization using RSSI which employs range-based estimation algorithm. To circumvent the unreliability of RSSI, we explored a weighted range-free estimation algorithm. The results show that range-free estimation provides an adequate accuracy and at the same time alleviates the laborious offline measurements required by the popular range-based algorithms. We discuss some features, experiences and preliminary measurements here. The ideas presented in this paper are expected to open up the multitude of further work in the field of localization