Abstract: Li-Fi stands for Light Fidelity. This technology is very new and it was proposed by the German physicist Harald Haas in 2011. It Provides transmission through illumination by sending data through a LED bulb which varies in intensity faster than the perception of human eye. This paper, discuss about the light technology in detail and also implements a Li-Fi system for data transmission through Visible Light Communication (VLC). Li-Fi is ideal for high density wireless data coverage in confined area where there are no obstacles. It is a wireless optical networking technology that uses Light Emitting \Diodes (LEDs) for transmitting the data. In Li-Fi visible light is used as medium to deliver high speed communication in a manner similar to Wi-Fi. Li-Fi provides better bandwidth, efficiency, availability and security than Wi-Fi. This paper will give a detailed study on Li-Fi technology of transferring data (i.e.., audio, video, text etc.) through Li-Fi technology by using both in software and hardware modules.

Keywords- Li-Fi, Visible Light Communication (VLC), Data Transmission

| DOI: 10.17148/IARJSET.2021.8671