Light-emitting diodes aided indoor localization using visible light communication technology

Manuela Vieira; Manuel A. Vieira; Paula Louro; Pedro Vieira

doi:10.1117/1.OE.57.8.087105

28 August 2018 Light-emitting diodes aided indoor localization using visible light communication technology

Manuela Vieira, Manuel A. Vieira, Paula Louro, Pedro Vieira

Author Affiliations +

Optical Engineering, Vol. 57, Issue 8, 087105 (August 2018). https://doi.org/10.1117/1.OE.57.8.087105

Abstract

This paper focuses on designing and analyzing a visible light-based communication and positioning system for indoor wireless communication under light-emitting diodes (LEDs) lighting environments. The indoor positioning system uses trichromatic white LEDs, both for illumination purposes and as transmitters, and an optical processor, based on a-SiC:H technology, as a mobile receiver. An on–off keying modulation scheme is used, proving a good trade-off between system performance and implementation complexity. The relationship between the transmitted data and the received output levels is decoded. LED bulbs work as transmitters, sending information together with different identifiers, IDs, related to their physical locations. Square and diamond topologies for the unit cell are analyzed, and a two-dimensional localization design, demonstrated by a prototype implementation, is presented. Fine-grained indoor localization is tested. The received signal is used in coded multiplexing techniques for supporting communications and navigation concomitantly on the same channel. The location and motion information are found by mapping the position and estimating the location areas.

Citation Download Citation

Manuela Vieira, Manuel A. Vieira, Paula Louro, and Pedro Vieira "Light-emitting diodes aided indoor localization using visible light communication technology," Optical Engineering 57(8), 087105 (28 August 2018). https://doi.org/10.1117/1.OE.57.8.087105

Received: 23 March 2018; Accepted: 7 August 2018; Published: 28 August 2018

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