LI-FI: Information transferring through LED's

Fed up of slow speed networks, sharing your hotspot, then here's a solution which involves the use of LEDs at your place because of which speed of the networks get increased with a secured connection. Light has been a source of life and many more stuff, so here comes a new concept Li-Fi, as it is dubbed i.e., Light Fidelity. Chairperson of mobile communication at University of Edinburgh, Herald Haas, coined up, with what he calls D - Light, Data through illumination, by sending data through an LED that varies in intensity faster than human perceptibility. The light source can be a light emitting diode which is becoming popular in day to day home and infrastructures. Again it can also be used for communication purpose along with photodiodes.