LI-FI: A New Era Of Wireless Communication Data Sharing

There is significant increase in traffic on the network and hence its complexity increases . Due to which there is shortage of radio bandwidth. Wireless communication is something which has to be fast, safe, reliable and free from error. LI-FI or "light fedility" is the method which is derived to overcome these problems. A new era in wireless communication is soon going to hit the word. A German physicist, Herald Hass who evolve a method to transfer data through illumination which he called it as D-light (or LI-FI). LI-FI which is a very advanced version of WI-FI is basically "light fedility" which uses visible light communication instead of radio wave communication as in WI-FI. As speed of light is way faster than radio waves hence it can be used with a speed of around 250 times more than any high speed broadband. Day by day use of internet is increasing and hence traffic is increasing. The disadvantage of WIFI: 1. It covers Small distance 2. More traffic slower speed 3. costly These limitations are overcome by LI-FI which can be used for: 1. large coverage of area 2. traffic handling capacity 3. cheaper Now the question arises that how it transmit data? It transmit data through LED"s (light emitting diode"s) which changes it"s intensity faster than human eye and that intensity is captured by a detector . Estimated transmition of data is around 10GBps. A recent project in foreign universities proved that: The Ultra-Parallel Visible Light Communications Project in which several universities together has achieved 3.5GBps of the three primary colors from a small LED. Combined, this makes a total in excess of 10GBps of what is known as "LiFi".