Abstract

Nowadays, the internet has become a major demand people are in search of Wi-Fi hot spots. Today every person is using the internet so it can easily say that this is the era of technology which works on wireless methods. When people in large numbers are accessing the internet for their requirements such as wireless networks, due to this the speed and security of the network get decrease. To improve that thing we are accomplished with WI-FI. To improve these things German physicist “Harald Hass” at TED GLOBAL talk march 2011 introduces new technology Light Fidelity (LI-FI). Where he introduces the idea of “WIRELESS DATA FROM EVERY LIGHT”. For the transmission, LI-FI used the LED lamps of visible light. In this paper, we focus on how LI-FI replaces the WI-FI. WI-FI (wireless fidelity) use for wireless coverage within building while LI-FI deals with high speed, security, feasibility. Li-Fi refers to visible light communication (VLC) that uses great speed similar to WI-FI. This provides great speed, bandwidth, security, efficiency than WI-FI.