Home // SENSORDEVICES 2023, The Fourteenth International Conference on Sensor Device Technologies and Applications // View article

Automated Guidance Based on Indoors Visible Light Communication

Authors:
Paula Louro
Manuela Vieira
Manuel Augusto Vieira

Keywords: Visible Light Communication; positioning; footprint map, On-Off keying, Mancheste coding.

Abstract:
Wireless communication devices have generated growing interest in indoor navigation over the past few years. The Internet of Things (IoT) and the inherent connectivity of billions of devices are making indoor localization and proximity detection increasingly attractive. Global Positioning System (GPS) has poor, unreliable performance when used in closed spaces, requiring alternative techniques and wireless technology. Due to the unlicensed free spectrum, optical wireless technologies are currently playing an important role in this field. Light Emitting Diodes (LEDs) are the basis for Visible Light Communication (VLC) technology due to their ability to simultaneously provide low energy consumption light and enable the possibility of wireless communication. These features empowered VLC as an effective communication technology due to the ubiquity of the illumination spots, especially in indoor applications. We propose the use of Visible Light Communication (VLC) to support guidance and communication for signaling in an indoor environment. The research focuses on developing guidance VLC systems, transmitting control data information, and decoding techniques. The communication system uses RGB white LEDs as emitters and pinpin photodiodes with selective spectral sensitivity as receivers. The downlink communication occurs between the infrastructure and the mobile user, while uplink communication occurs in the opposite direction. Different modulation methods, such as On-Off keying and Manchester codes, are used, allowing a comparison between them. The decoding strategy is based on accurate calibration of the output signal. We will discuss coding schemes, modulation formats, and decoding algorithms in this paper, as well as the characteristics of transmitters and receivers.

Pages: 42 to 46

Copyright: Copyright (c) IARIA, 2023

Publication date: September 25, 2023

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-68558-091-9

Location: Porto, Portugal

Dates: from September 25, 2023 to September 29, 2023