This book has come up with a solution of "Data through Illumination" - Light Fidelity known as Li-Fi which takes the fiber out of fiber optics by sending data through an LED light bulb that varies in intensity faster than the human eye can follow. Li-Fi is a VLC, visible light communication, which uses visible light on electromagnetic spectrum for communication. Li-Fi is part of the Visible Light Communications in PAN IEEE 802.15.7 standard. Li-Fi...