Li-Fi: Surprising Internet Speed Under Visible Light

Abstract

This research work presents a review on data transferring through LI-FI technology, also known as the Internet of Things (loT). In order to achieve this, it will be necessary to go back to its beginnings in the 1900s, where the use of wireless communications started, leaving aside wired communications, to later on look into high-speed- wireless data transfer. This has given rise to a new technology that uses light as a means of transfer (LI-FI). It uses light beams through LED technology, in order to transfer large amounts of data at speeds as high as 10 G/s. LI-FI would replace the use of what has, thus far, been used as a means of wireless transfer, the WiFi. It will provide solution problems due to overload and low data transfer rates in places with large amounts of devices and users who want to access the network through WIFI. LIFI will replace this technology by solving the problems detected with the use of WIFI; this new technology has been studied since 2010 at the University of Edinburgh, Scotland by Professor PhD. Harald Haas, and it has been marketed since 2011. Many countries have already implemented this type of technology in their networks; however, this technology is hampered by some problems. In this article we will briefly review this technology and discuss some of these problems as well as their possible solutions.