Li Fi Technology: A Visible Light Communication

This technology uses visible spectra and there is no major adverse effect as we know that light is an important part of our lives. Furthermore, with this spectrum, the usable space has increased by 10,000 times as the usable space has increased by 10,000 times, and the number of available light bulbs has increased. Figure 1 shows an environment using Li-Fi technology using a bulb as a communication medium. Figure 1: Environment using LI FI technology II Practical technology Li-Fi is implemented with a white LED bulb applied to lighting by applying a constant current.

Light fidelity (Li - Fi) is a wireless communication technology that provides high speed data transmission via visible light. The term Li-Fi was created by Professor Harald Haas, CSO of PureLiFi, and refers to visible light communication (VLC) technology that provides high-speed interactive network mobile communication as well as Wi-Fi. VLC uses the visible part of the electromagnetic spectrum to transmit information. This is different from established forms of wireless communication such as Wi - Fi using radio frequency (RF) signals to transmit data.

Li-fi is about to initiate wireless visible light communication, also called LIFI (Light Fidelity), or optical fidelity technology. This is a technology to transmit data using light bulbs. A small chip formed by embedding a bulb resembles an AP (Wi - Fi hotspot) device, and the terminal can access the network at any time. LIFI invention aims to challenge the existing Wi-Fi technology, but considering the limit of this technology, recently, positive news of the Information Science and Engineering Department, the success of the world's leading communication LIFI successfully visible light inside Transmission network signal