Li-Fi Implemented Data Transfer

Light Fidelity (Li-Fi) is a budding technology that has emerged in several recent years, yet it needs further development and experimentation to prove its capability to be an alternative to Wi-Fi technology. Li-Fi uses light as a mode of transfer of data rather than the conventional radio frequencies that are inculcated in Wi-Fi. Li-Fi technology has crucial features differing from those of Wi-Fi, like its high data density in limited space and decreased interference issues as that of Wi-Fi. A wireless data transfer model is put together using two PCs and Li-Fi technology in this project. Data is transferred from the transmitter PC via an array of nine white LEDs connected to Arduino UNO. The data is transferred and received using an LED array and a photodiode respectively, each connected to an Arduino UNO, which in turn is connected to a PC. The Arduino boards encrypt and decrypt the data to be transferred using an algorithm mentioned further in the paper.