Light-Fidelity: Successor of Wi-Fi
Li-Fi stands for Light-Fidelity. LI-FI is a new epoch of high intensity light source of solid state design which bring clean lighting solutions to general and specialty lighting. LI-FI is now part of the VLC as is implemented using white LED light bulbs. Data transmission takes place from this LED bulb by varying the current at extremely high speeds which undetectable by the human eye. Though WiFi gives us speed up to 150mbps as per IEEE 802.11n, it is still insufficient to accommodate no of desired users. To remedy this limitation of Wi-Fi, we are introducing concept of Li-Fi.As per germen phycist Harald Haas ―data through illumination‖ –taking the fibber out of fiber optic by sending data through an LED light bulb that varies in intensity faster than the human eye can follow. It’s the same idea band behind infrared remote controls but far more powerful. Haas says his invention, which he calls D-LIGHT, can produce data rates faster than 10 megabits per second, which is speedier than your average broadband connection. KeywordsWireless-Fidelity (Wi-Fi), Light-Fidelity (Li-Fi), Light Emitting Diode (LED), Wireless Communication, Visible Light Communication (VLC)