Home // SENSORDEVICES 2019, The Tenth International Conference on Sensor Device Technologies and Applications // View article

Cooperative Communication between Vehicles and Road Infrastructures through Visible Light

Authors:
Manuel Augusto Vieira
Manuela Vieira
Paula Louro
Pedro Vieira

Keywords: Vehicular Communication; Light Fidelity; Visible Light Communication; white LEDs; SiC photodetectors; OOK modulation scheme; Traffic control.

Abstract:
A vehicular communication system that combines illumination, signaling, communications, and positioning functions is presented. The bidirectional communication between the infrastructures (I) and the vehicles (V) is performed through Visible Light Communication using the street lamps, the traffic signals and the headlights to broadcast the information. Wavelength Division Multiplex photodetectors receive and decode the information. White polychromatic-LEDs (Light Emitting Diodes) are used for lighting and also to implement the decoding operation. This allows modulating separate data streams into four wavelengths which together multiplex to white light. A traffic scenario is proposed, along with the transmitter to receiver setup. The performance of a cooperative driving system (I2V2V2I2V) is evaluated. Streams of messages containing the physical address ID of the emitters are used, transmitting a codeword that is received and decoded by the receivers. As a proof of concept, a cooperative vehicular traffic scenario is presented and bidirectional communication established and tested. A traffic signal phasing in a light controlled crossroad is presented. The experimental results confirm that the cooperative vehicular architecture is a promising approach concerning communications between road infrastructures and cars, fulfilling data privacy.

Pages: 26 to 31

Copyright: Copyright (c) IARIA, 2019

Publication date: October 27, 2019

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-745-0

Location: Nice, France

Dates: from October 27, 2019 to October 31, 2019