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http://dx.doi.org/10.9717/kmms.2017.20.8.1330

A Method to Construct a Cut-off Fingerprint Map to Improve Accuracy in Indoor Positioning Scheme  

Kim, Dongjun (Dept. of Computer Engineering, Graduate School, Korea Maritime and Ocean University)
Son, Jooyoung (Div. of Marine IT Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Korea Multimedia Society / v.20, no.8, 2017 , pp. 1330-1337 More about this Journal
Abstract
In off-line phase of the preliminary Cut-off indoor positioning scheme, which is one of the indoor positioning scheme using the fingerprint, relative ranks of peak RSSIs received from beacons at each reference point are stored in the fingerprint map. In some reference points, signals of multiple beacons may be received. In this case, the relative ranks may be different when constructing fingerprint and when receiving signals in real-time. To solve this problem, we propose a method to utilize only up to five beacons with high ranking when constructing a fingerprint and when receiving signals in real-time and comparing them with stored information of a fingerprint. Experiments were conducted on the estimation probabilities and the average error when using this method. Those are compared with the previous methods. Experimental results show that the estimation probabilities and the average error are improved by removing only the remaining five beacons at each reference point of the fingerprint.
Keywords
Indoor Positioning; Fingerprint Map; Beacon; Reference Point; Cut-off;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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