Progress report on visible light communication in intelligent transportation environment

Abstract

With the continuous and rapid development of modernization and motorization, the number of cars in China has maintained a high growth, which leads to problems such as increased traffic congestion and frequent accidents. The emergence of intelligent transportation system can effectively solve problems and contradictions between people, vehicles and roads in real time. In recent years, the development of visible light communication in the intelligent transportation environment has been more and more rapid. This paper briefly summarizes the research and development of visible light communication in the intelligent transportation environment. First of all, the main interference factors of outdoor visible light communication are summarized: background light and atmospheric turbulence. Then, some methods and techniques to suppress or weaken them, such as the average aperture and channel coding mainly reduce the influence of atmospheric turbulence on outdoor optical communication, and the error rate of the outdoor environment experiment system is 10-3-10-7. Adaptive optical MIMO technology mainly inhibits the communication interference caused by background light. In the outdoor background light environment, the communication distance can reach 15m and the bit error rate is 10-4. Finally, the research direction of outdoor visible light communication technology and its application in the field of intelligent transportation are prospected.