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Title: Visible light communications in intelligent transportation systems
Author: Kumar, Navin
Lourenço, Nuno
Terra, Domingos
Alves, Luis Nero
Aguiar, Rui Luís Andrade
Keywords: Visible light communications
Intelligent transportation systems
Vehicular communications
Issue Date: Jun-2012
Publisher: IEEE
Abstract: Emerging intelligent transportation systems (ITS) are based on several technologies. A new concept of integrating visible light communications (VLC) in ITS is introduced in this paper.VLC in ITS is a cost effective method of implementation. This paper presents a VLC broadcast system considering LED-based traffic lights. It discusses the integration of traffic light road side unit (RSUs) within the existing ITS architecture. A prototype demonstrator of the designed VLC systems is also presented. A robust modulation technique based on direct sequence spread spectrum (DSSS) sequence inverse keying (SIK) has been implemented to minimize the effect of noise sources. Experimental results show data communication range of over 40m with 200mm custom designed traffic light, even during bright sun light.
Peer review: yes
DOI: 10.1109/IVS.2012.6232282
ISBN: 978-1-4673-2119-8
ISSN: 1931-0587
Appears in Collections:DETI - Comunicações

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