Home // ALLSENSORS 2022, The Seventh International Conference on Advances in Sensors, Actuators, Metering and Sensing // View article

VLC Footprint Maps for Positioning and Guidance

Authors:
Paula Louro
Manuela Vieira
Manuel Augusto Vieira

Keywords: Visible Light Communication; Indoor guidance; White LEDs; Lambertian model; navigation cell

Abstract:
Visible Light Communication (VLC) is currently a research topic due to the possibility to handle the general, worldwide demanding need for communication. VLC uses Light Emitting Diodes (LED), operating in the visible part of the electromagnetic spectrum, as optical sources for optical wireless communication. The technology simultaneous lighting and communication, providing high data rates, reliability and a secure data transmission compared to other wireless technologies (such as Wi-Fi). This paper explores the use of VLC to establish different optical communication links for bidirectional communication between vehicles and infrastructures, using 2 links, namely Infrastructure-To-Vehicle (I2V) and Vehicle-To-Infrastructure (V2I) communication. The proposed application uses VLC to support autonomous navigation of mobile robots inside an automated warehouse, providing guidance and management services. Specific coding schemes are used in each optical link. In the I2V link, RGB white LEDs are used to allow simultaneous modulation of the emitters embedded in each LED, which enables wavelength division multiplexing of the transmitted optical signals. The detection is based on an a-SiC:H pin-pin photodetector with tunable sensitivity in the visible range. Different indoors communication scenarios are presented and bit error rate is discussed using a parity check bits for error control.

Pages: 25 to 29

Copyright: Copyright (c) IARIA, 2022

Publication date: June 26, 2022

Published in: conference

ISSN: 2519-836X

ISBN: ISBN: 978-1-61208-987-4

Location: Porto, Portugal

Dates: from June 26, 2022 to June 30, 2022