Abstract:
Li-Fi, or light fidelity is an emerging technology which is bidirectional and fully networked wireless communications medium. Li-Fi uses light from light-emitting diodes (LEDs) and provides transmission of data through illumination by sending data through a LED light bulb that varies in intensity faster than the human eye can follow. Li-Fi can transmit at multiple gigabits which are under implementation process and most probably available 3rd quarter in 2019 but now li-fi may transfer signal which is more reliable, virtually interference free and uniquely more secure than radio technology such as Wi-Fi or cellular. It can provide connectivity within a very large area and with higher data rates and high speed than data that can be transmitted through Wi-Fi. It uses visible light communication or infra-red and near ultraviolet spectrum which works by switching bulbs on and off within nanoseconds. By using Li-Fi technology traffic control is possible by transmitting and receiving data through LED head-lights of lamp post. In this paper we propose a system that uses Li-Fi enabled LED lamp post, traffic signal light that can be used for traffic management and road safety by using lamp post LED to lamp post LED data transmission. The aim of designing this system is to reduce road accidents and managing traffic more accurately, smartly with less manpower.
