Data Communication Using Li-Fi

Abstract

Wireless data transmission demand is increased over the years. But due to lack of radio frequency spectrum and hazardous electromagnetic waves comes out from it Li-Fi appears as a new cheaper, greener, and healthier alternative to traditional Wi-Fi. Presently there are two trends being seen in the world of Wireless communication: First, the enrichment or extension of wireless services & second being increased in demand by users for these services. The need is fulfilled by RF spectrum but the usage is very limited. So the emerging technology-Li-Fi came into picture, which uses visible light as a source of communication. The recent advancement in the wireless communication world has made VLC as one of the high-speed, efficient, secured and cheaper optical wireless communication technology. [12] This research paper focuses on required hardware for transmission of text Li-Fi system. The PCB of Transmitter and Receiver are designed by using PCB Artist 4.0 tool. The Microcontroller ATMega16 has been used for the purpose of performing operation at transceiver section. Its programming is done by using AVR studio. Successful transmission and reception of text is carried out on the transceiver. Hence this research paper shows an innovative way of designing a transceiver with low cost electronic hardware components and using already available white LED light bulb. This Li-Fi technology envisions a future where data for smart phones, laptops and tablets will be transmitted in an economic and ecofriendly medium of light in room.