• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Design and Realization of Precise Indoor Localization Mechanism for Wi-Fi Devices

Vol. 10, No.12, December 31, 2016
10.3837/tiis.2016.12.016, Download Paper (Free):

Abstract

Despite the abundant literature in the field, there is still the need to find a time-efficient, highly accurate, easy to deploy and robust localization algorithm for real use. The algorithm only involves minimal human intervention. We propose an enhanced Received Signal Strength Indicator (RSSI) based positioning algorithm for Wi-Fi capable devices, called the Dynamic Weighted Evolution for Location Tracking (DWELT). Due to the multiple phenomena affecting the propagation of radio signals, RSSI measurements show fluctuations that hinder the utilization of straightforward positioning mechanisms from widely known propagation loss models. Instead, DWELT uses data processing of raw RSSI values and applies a weighted posterior-probabilistic evolution for quick convergence of localization and tracking. In this paper, we present the first implementation of DWELT, intended for 1D location (applicable to tunnels or corridors), and the first step towards a more generic implementation. Simulations and experiments show an accuracy of 1m in more than 81% of the cases, and less than 2m in the 95%.


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Cite this article

[IEEE Style]
Weideng Su, Erwu Liu, Anna Calveras Augé, Eduard Garcia-Villegas, Rui Wang and Jiayi You, "Design and Realization of Precise Indoor Localization Mechanism for Wi-Fi Devices," KSII Transactions on Internet and Information Systems, vol. 10, no. 12, pp. 5985-6004, 2016. DOI: 10.3837/tiis.2016.12.016

[ACM Style]
Su, W., Liu, E., Augé, A. C., Garcia-Villegas, E., Wang, R., and You, J. 2016. Design and Realization of Precise Indoor Localization Mechanism for Wi-Fi Devices. KSII Transactions on Internet and Information Systems, 10, 12, (2016), 5985-6004. DOI: 10.3837/tiis.2016.12.016