Indoor localization system utilizing two visible light emitting diodes

Farag I.  K. Mousa; Hoa Le-Minh; Zabih Ghassemlooy; Xuewu Dai; Son T. Tran; Anthony C. Boucouvalas; Shien-Kuei Liaw

doi:10.1117/1.OE.55.11.116114

29 November 2016 Indoor localization system utilizing two visible light emitting diodes

Farag I. K. Mousa, Hoa Le-Minh, Zabih Ghassemlooy, Xuewu Dai, Son T. Tran, Anthony C. Boucouvalas, Shien-Kuei Liaw

Author Affiliations +

Optical Engineering, Vol. 55, Issue 11, 116114 (November 2016). https://doi.org/10.1117/1.OE.55.11.116114

Abstract

Indoor positioning or localization based on visible light communications (VLC) is an emerging technology with wide applications. In conventional localization schemes, the trilateration technique is widely used with at least three separate lighting sources to determine the user’s location. An indoor VLC positioning scheme based on the optical power distributions of only two light emitting diodes (LEDs) is reported for different environments. We have used two received signal strength indications to determine the user’s position based on the LEDs configuration offering less complexity. We propose comprehensive mathematical models for the VLC localization system considering the noise and its impact on the user’s location, and numerically evaluated it over a range of signal-to-noise ratios (SNRs). In addition, it is compared to the results with the exiting trilateration technique. The performance of the proposed system is evaluated with a reported accuracy of <20 cm for an SNR of >13 dB.

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Farag I. K. Mousa, Hoa Le-Minh, Zabih Ghassemlooy, Xuewu Dai, Son T. Tran, Anthony C. Boucouvalas, and Shien-Kuei Liaw "Indoor localization system utilizing two visible light emitting diodes," Optical Engineering 55(11), 116114 (29 November 2016). https://doi.org/10.1117/1.OE.55.11.116114

Published: 29 November 2016

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