Review Paper on Li-Fi (Light Fidelity)

Computer Engineering

Li-Fi means Light-Fidelity. Li-Fi technology, proposed by the German Scientist — Harald Haas, Harald Haas proposed the technology that transmits the data through illumination by sending data through the LED light bulb. The main aim of this paper is to develop a Li-Fi based system and measure its performance with respect to existing technology. Now days the Wi-Fi is the more popular wireless technology that cover within buildings, whereas Li-Fi is ideal for high speed wireless data transmission in confined area. Li-Fi provides higher bandwidth, efficiency, availability and security than Wi-Fi and has already achieved high speed in the lab. By using the low-cost nature of LEDs we can implement this system public internet access through street lamps to auto-piloted cars that communicate through their headlights. As the speed of light is higher hence the data transmission speed is so much faster that the existing system. In the future we can implement this technology for fast data access for the laptops, smart phones, and tablets will be transmitted through the light in a room.

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