I. Introduction
Professor Harald Haas coined Li-Fi (light fidelity) at TED Global in 2011 Li-Fi is an optical system that uses light emitting diodes to communicate. The electronic device uses Li-Fi that connects to the network without using wire. The transceiver is responsible for helping Li-Fi to communicate between nodes by transmitting and receiving data. By modulating the transceiver, Utilizes the light to carry data on the LED. High speed data transmission done through LED bulbs. LED bulbs can have very high data rates and have very high intensity [9]. The coming of Li-Fi is to get the better of current advancement. Due to the shortage of radio frequency wealth, the usage of Wi-Fi has been reduced. As this fresh technology comes, the use of the internet has increased.