Li Fi (Light Fidelity)

By

Asif Vindhani

Existing System•Wi Fi

•Drawback of Wi Fi•What we can do to overcome this drawbacks?

•Solution

•Why Visible Light?

//Spectrum Diagram

4

Working Technology of Li Fi

Transmitting Elements

LED Fluorescent Lamp

6

Receiving Elements

Photo Diode Image Sensor

7

How Li Fi Works

Real Time Usage of Li Fi

Wi-Fi 150 Mbps

Bluetooth 3 Gbps

IrDA 4 Gbps

Comparison between Various Technologies

Wired

Wireless(Current)

Wireless(Future)

Fire wire 800 Mbps

USB 3.0 5 Gbps

Thunderbolt 20 Gbps

Li-Fi 10 Gbps

Giga-IR 1 Gbps

Wi-Gig 2Gbps

Applications of Li FiAirways:

Applications of Li Fi

Application:2

//Image

Applications of Li Fi

Application:3

//Image

Advantages of Li Fi

•Green information technology

•Lighting points Used as Hotspots

•Can be used in hospitals and even underwater

Drawbacks of Li Fi

•Li-Fi doesn’t work in the dark or outdoors.

•Li-Fi has a big drawback compared to Wi-Fi, unlike wi-Fi we cannot move to other rooms

unless there are wired bulbs too.

Thank You !!