On Application of a Positioning System Using Photosensors with User Mobility Support in HealthCare System

Biswas, S., Ghassemlooy, Fary, Le Minh, Hoa, Chattopadhyay, S., Tang, X. and Lin, B. (2023) On Application of a Positioning System Using Photosensors with User Mobility Support in HealthCare System. Proceedings of the National Academy of Sciences, India Section A: Physical Sciences, 93 (1). pp. 121-133. ISSN 0369-8203

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Official URL: https://doi.org/10.1007/s40010-022-00792-x


An indoor visible light positioning system using the received signal strength intensity method and the trilateration technique with user mobility support is proposed for applications, e.g. healthcare. Accurate position information of medical staffs and patients is required for data transmission, tracking, navigation, etc. Seamless data transmission while user is on the move has been conceptualized considering the optical network formed by photosensor (light emitting diode)-based transmitters. Efficiency of these services depends on the position accuracy. To investigate factors contributing to higher position errors in a practical environment, the proposed system is evaluated. Evaluation is done through simulation and experiment for different channel conditions, and the receiver rotation due to user mobility. Simulation results show an average two-dimensional position error of 0.32 m in a channel with a strong background light illumination level of − 60 dBm. Experimental results show that the mean position error is 0.7 m in a normal daytime indoor light condition.

Item Type: Article
Uncontrolled Keywords: Visible Light Positioning, Position Error, Rx Sensitivity, Noise, Incidence Angle, Mobility
Subjects: B800 Medical Technology
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: John Coen
Date Deposited: 18 Aug 2022 07:49
Last Modified: 24 Jun 2023 03:30
URI: https://nrl.northumbria.ac.uk/id/eprint/49891

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