Li-Fi is a new wireless optical communication technology that uses light-emitting diodes (LEDs) for data transmission. It can provide wireless connections up to 100 times faster than Wi-Fi. Li-Fi transmits data through illumination by taking fiber optics and sending data through an LED light bulb. It offers benefits like very high speed, secure communication, and energy efficiency. Li-Fi complements Wi-Fi as it is ideal for areas where radio interference is a problem or for applications requiring high data density wireless coverage.

1. Li-Fi
Technology
The future is here !

2. Li-Fi
• Li-Fi is the transmission of data through illumination
by taking the fiber out of fiber optics by sending data
through a LED light bulb.
• Li-Fi is a new way to establish wireless
communication links using LED lighting network.
• It is the fast and cheap wireless communication
system which is optical version of Wi-Fi.

3. Application of Li-Fi Technology
• Airplanes
• Under water communication
• Helps in education system
• Helps in medical field.

4. Comparison between Li-Fi & Wi-Fi
• Li-Fi is a term of one used to describe
visible light communication technology
applied to high speed wireless
communication.
• It acquires this name to the similarities to
Wi-Fi, only using light instead of radio.

5. • Wi-Fi is great for general wireless
coverage within buildings and Li-Fi is
ideal for high density wireless data
coverage in confined area and for
relieving radio interference issues so the
two technology can be considered
complimentary.

6. • Technology Speed Data Density :
 Wireless (current)
 Wi-F-IEEE 150Mbps
 802.11n Bluetooth 3Mbps
 IrDA 4Mbps

7. • Technology Speed Data Density :
Wireless (future)
Wi-fi 2Gbps
Li-Fi 2Gbps to 10 Gbps.

8. How Li-Fi is different ?
• Li-Fi technology is based on LEDs for the
transfer of data.
• The transfer of data can be with the help of all
kind of light i.e. light may be invisible, ultra-
violet, or visible part of spectrum.
• The speed of internet is incredibly high and the
user everything in just a few minutes.

9. Advantages of Li-Fi technology
• It is possible to achieve more than 10
Gbps, theoretically allowing high
definition film to be downloaded in
30sec.
• Mostly powered by LEDs so it is a cost
efficient.
• Transmission of data fast and easy.

10. • It work under water and easy to
communicate.
• It also work in airways.

11. Conclusion
• The concept of Li-Fi is currently attracting a
great deal of interest, not list because it may
offer a genuine and efficient alternative to
radio based wireless.
• As a growing no. of peoples and their devices
access wireless internet , airwaves, are
becoming increasingly clogged, making it
more and more difficult to get a reliable, high
speed signal.

12. • If this technology can be put into practical
used, every bulb can be used something like a
Wi-Fi hotspot to transmit wireless data and we
will proceed towards the cleaner, greener, safer
and brighter future.