Simulation of fingerprinting based Visible Light Positioning without the need of prior map generation

Felix Lichtenegger; Claude Leiner; Christian Sommer; Andreas P. Weiss; Franz P. Wenzl; Ziad Salem

doi:10.1117/12.2596841

12 September 2021 Simulation of fingerprinting based Visible Light Positioning without the need of prior map generation

Felix Lichtenegger, Claude Leiner, Christian Sommer, Andreas P. Weiss, Franz P. Wenzl, Ziad Salem

Proceedings Volume 11874, Illumination Optics VI; 118740I (2021) https://doi.org/10.1117/12.2596841
Event: SPIE Optical Systems Design, 2021, Online Only

Abstract

Fingerprinting-based Visible Light Positioning is a promising candidate to perform large-scale indoor positioning tasks. In fingerprinting, signal characteristics are grouped in a fingerprint map together with the respective locations inside the indoor environment. By comparing live signal measurements with the fingerprint map, the closest match is selected as the current position estimate. However, the fingerprint map has to be generated beforehand in the so-called offline phase, which is the time-consuming process of sampling the environment, in which the positioning task is desired, for signal characteristics. Here, we propose a fingerprint-based positioning approach for which we mitigate the need for the offline phase by taking advantage of the VLC data transmission capabilities of the LED luminaires of the obligatory room lighting. Based on the transmitted data on room and luminaire configurations to the receiving device, the illumination characteristics in the room can be calculated by simplified analytical formalisms, substituting the need for an experimentally measured offline phase. We demonstrate the effectiveness of our approach with the help of ray-tracing simulations and under the assumption that the receiving device is equipped with an angular sectored receiver. The results of the ray-tracing simulations mimic real world measurements with the receiver in the online phase. We show that decimeter level accuracies down to centimeter level accuracies are achievable for such an approach.

Conference Presentation

Citation Download Citation

Felix Lichtenegger, Claude Leiner, Christian Sommer, Andreas P. Weiss, Franz P. Wenzl, and Ziad Salem "Simulation of fingerprinting based Visible Light Positioning without the need of prior map generation", Proc. SPIE 11874, Illumination Optics VI, 118740I (12 September 2021); https://doi.org/10.1117/12.2596841

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