Voronoi Tessellation Based Interpolation Method for Wi-Fi Radio Map Construction

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The fingerprint-based approach for positioning in WLAN has been drawing great attention these days. However, the approach usually requires tremendous time and efforts to collect location fingerprints for the target area. In this paper, we propose an interpolation method based on Voronoi tessellation to significantly reduce such calibration efforts and to improve accuracy. Unlike other interpolation methods, our method refines the propagation model for each cell of the target area tessellated by a higher-order Voronoi diagram. Consequently, our method can take into account the signal fading caused by walls and obstacles more accurately. The proposed method significantly outperformed other interpolation methods in accuracy.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2012-03
Language
English
Article Type
Article
Keywords

MINIMIZATION

Citation

IEEE COMMUNICATIONS LETTERS, v.16, no.3, pp.404 - 407

ISSN
1089-7798
DOI
10.1109/LCOMM.2012.020212.111992
URI
http://hdl.handle.net/10203/98139
Appears in Collection
CS-Journal Papers(저널논문)
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