Visible light based high accuracy indoor localization using the extinction ratio distributions of light signals

In this article, we propose an indoor location estimation algorithm that uses the signal extinction ratio distribution of LED‐based visible light communication.To improve the positioning accuracy, we use the received extinction ratio from different LED transmitters. In order to mitigate interference between transmitters, a location code was sent using time division multiplexing (TDM). We verified the feasibility of the proposed position estimation algorithm with an experimental demonstration. The proposed algorithm provided positioning accuracy with a 1.5787‐cm mean distance error for a given equilateral triangle cell with three 60‐cm sides. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1385–1389, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27575

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