LED 헤드램프 기반 차량용 가시광통신 시스템

We propose the vehicular visible light communication system using LED headlamp for ITS. In this paper, the communication between photo-detector and the LED headlamp is approached using LED headlamp as the transmitter, and photo-detector as the receiver. The LEDs in the transmitter are emitted using I-4PPM(inverse 4-pulse position modulation) method and those emitting LEDs are captured by a photo diode for conducting synchronous communication method. Also, this system is accessible on daytime. Experimental results using appropriate images and figures showed the effectiveness for the proposal.