TY - GEN
T1 - Bi-directional communication between infrastructures and vehicles through visible light
AU - Vieira, M. A.
AU - Vieira, M.
AU - Louro, Paula
AU - Vieira, Pedro
N1 - UID/EEA/00066/2019
IPL/2018/II&D_CTS/UNINOVA_ISEL
IPL/IDI&CA/2018/LAN4CC/ISEL
Sem PDF conforme despacho
PY - 2019
Y1 - 2019
N2 - In this paper a vehicular communication system that incorporates illumination, signaling, communications, and positioning functions is presented. The bidirectional communication between the infrastructures and the vehicles (I2V), between vehicles (V2V) and from the vehicles to the infrastructures (V2I) is performed through Visible Light Communication (VLC) using the street lamps and the traffic signaling LEDs to broadcast the information. As receivers and decoders, pin/pin SiC Wavelength Division Multiplex (WDM) photodetectors, with light filtering properties, are being used. White polychromatic-LEDs are used for lighting and to implement the WDM. This allows modulating separate data streams on four colors 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 is evaluated. To achieve cooperative vehicular communications (I2V2V2I2V), streams of messages containing the ID physical address of the emitters are used, transmitting a codeword that is received and decoded by the receivers. As a proof of concept, a I2V2V2IV traffic scenario is presented, bidirectional communication between the infrastructures and the vehicles is established and tested. The experimental results confirm that the cooperative vehicular VLC architecture is a promising approach concerning communications between road infrastructures and cars, fulfilling data privacy.
AB - In this paper a vehicular communication system that incorporates illumination, signaling, communications, and positioning functions is presented. The bidirectional communication between the infrastructures and the vehicles (I2V), between vehicles (V2V) and from the vehicles to the infrastructures (V2I) is performed through Visible Light Communication (VLC) using the street lamps and the traffic signaling LEDs to broadcast the information. As receivers and decoders, pin/pin SiC Wavelength Division Multiplex (WDM) photodetectors, with light filtering properties, are being used. White polychromatic-LEDs are used for lighting and to implement the WDM. This allows modulating separate data streams on four colors 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 is evaluated. To achieve cooperative vehicular communications (I2V2V2I2V), streams of messages containing the ID physical address of the emitters are used, transmitting a codeword that is received and decoded by the receivers. As a proof of concept, a I2V2V2IV traffic scenario is presented, bidirectional communication between the infrastructures and the vehicles is established and tested. The experimental results confirm that the cooperative vehicular VLC architecture is a promising approach concerning communications between road infrastructures and cars, fulfilling data privacy.
KW - Light Fidelity
KW - OOK modulation scheme
KW - SiC photodetectors
KW - Traffic control
KW - Vehicular Communication
KW - Visible Light Communication
KW - white LEDs
UR - http://www.scopus.com/inward/record.url?scp=85074284516&partnerID=8YFLogxK
U2 - 10.1117/12.2526500
DO - 10.1117/12.2526500
M3 - Conference contribution
AN - SCOPUS:85074284516
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Fourth International Conference on Applications of Optics and Photonics
A2 - Costa, Manuel F. M.
PB - SPIE-International Society for Optical Engineering
T2 - 4th International Conference on Applications of Optics and Photonics, AOP 2019
Y2 - 31 May 2019 through 4 June 2019
ER -