Visible light communication for intelligent transportation in road safety applications

• Autor(es): Kumar, N. ; Terra, D. ; Lourenço, N. ; Alves, L. N. ; Aguiar, R.L.
• Data: 2011
• Identificador Persistente: http://hdl.handle.net/10773/5254
• Origem: RIA - Repositório Institucional da Universidade de Aveiro
• Assunto(s): DSSS; ITS; Vehicular communication; Visible light communication; Artificial light source; Direct sequence spread spectrum techniques; Intelligent transportation; Low data rates; Medium range; Modulation schemes; Road safety; Simulation result; Spread spectrum modulation; Transmitter and receiver; Vehicular communications; Visible light communications; Accident prevention; Communication systems; Intelligent vehicle highway systems; Light emitting diodes; Light sources; Mobile computing; Roads and streets; Signal processing; Signal receivers; Spectroscopy; Wireless telecommunication systems; Spread spectrum communication
• Tipo de Documento: Objeto de conferência
• Idioma: Inglês

Descrição

This paper discusses the implementation of a light emitting diode based visible light communication system, for intelligent transportation in road safety applications. The signal processing of both, transmitter and receiver are realized in a field programmable gate array using two Spartan-3E development kits. The implemented modulation scheme is based on direct sequence spread spectrum techniques. The performance of the overall system is evaluated and results are presented. It is found that the system is well suited for traffic broadcast at low data rate and medium range. The simulation results also show that spread spectrum modulation techniques mitigate the effect of noise produced by ambient artificial light sources. © 2011 IEEE.