Browsing by Author "Alwin, Poulose"

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    A Combined PDR and Wi-Fi Trilateration Algorithm for Indoor Localization
    (IEEE, 2019) Alwin, Poulose; Odongo, Steven Eyobu; Han, Dong Seog
    Indoor localization using Wi-Fi or pedes- trian dead reckoning (PDR) has several limitations in terms of Wi-Fi signal fluctuations and PDR drift errors. To overcome these limitations, we propose a sensor fusion framework for Wi-Fi and PDR systems. The pro- posed sensor fusion will overcome the PDR drift errors by analysing the Wi-Fi signal strength and the PDR results will compensate the Wi-Fi signal fluctuations. Based on the experiments conducted, results show that the proposed fusion indoor positioning algorithm shows high position accuracy over Wi-Fi localization and PDR systems when used independently. Our proposed combined position estimation algorithm achieves an improved average localization accuracy of 1.6 m when compared to the Wi-Fi and PDR systems when used independently.