Weighted k-nearest neighbour model for indoor VLC positioning

Van, Manh The, Tuan, Nguyen Van, Son, Tran The, Le Minh, Hoa and Burton, Andrew (2017) Weighted k-nearest neighbour model for indoor VLC positioning. IET Communications, 11 (6). pp. 864-871. ISSN 1751-8628

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Official URL: https://doi.org/10.1049/iet-com.2016.0961

Abstract

This study introduces a weighted k-nearest neighbour model for user positioning in a visible light communications (VLC) system. The new model offers a higher degree of accuracy compared with conventionally existing techniques in VLC, such as trilateration. In the proposed model, the current position of the receiver is estimated based on the positions of the k-NN (known as reference points) pre-defined and recorded in a lookup table. The Euclidean distances from the actual receiver to the reference points are weighted in order to improve accuracy. Simulation results show that the proposed model outperforms the trilateration method by 36 and 50% accuracy with and without ambient light interference, respectively.

Item Type: Article
Uncontrolled Keywords: free-space optical communication, indoor navigation, optical receivers, table lookup
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 31 May 2017 08:15
Last Modified: 31 May 2017 11:26
URI: http://nrl.northumbria.ac.uk/id/eprint/30910

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