A study on indoor visible light communication localization based on manchester code using walsh code

Title & Authors
A study on indoor visible light communication localization based on manchester code using walsh code
Kim, Won-yeol; Park, Sang-gug; Cho, Woong-ho; Noh, Duck-soo; Seo, Dong-hoan;

Abstract
In this paper, we propose an indoor visible light communication(VLC) localization using Walsh code which can identify overlapped signals transmitted from the different LED sources as each of orthogonal signal at a receiver and using Manchester code which can eliminate the flicker of LED light and maintain a constant brightness. The proposed system can estimate the relative position of the receiver by using Lambertian radiation properties and trilateration method that are applied to the location information of fixed LED sources and the received signals from them. In order to verify the feasibility of the proposed system, we carried out the simulation in an indoor space with $\small{6{\times}6{\times}1.5m^3}$ installed LED lamps of 16. The simulation result shows that the proposed method achieves an average positioning error of 0.0536 m and a maximum positioning error of 0.2977 m.
Keywords
Visible light communication;Indoor localization;Trilateration;Walsh code;Manchester code;
Language
Korean
Cited by
1.
A study on 3-D indoor localization based on visible-light communication considering the inclination and azimuth of the receiver, Journal of the Korean Society of Marine Engineering, 2016, 40, 7, 647
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