Li-Fi technology uses visible light communication (VLC) to transmit data wirelessly using LED lights. It provides an alternative to Wi-Fi by using light-emitting diodes (LEDs) that can be used as access points to transmit data through walls and ceilings at high speeds. The seminar discussed what Li-Fi is, why it is needed as an alternative technology, how it works using LED lights as transmitting elements and photo diodes as receiving elements, its applications and benefits like being secure, green, and providing large bandwidth and fast data transfer at low cost. Challenges to the technology were also mentioned along with the conclusion that if implemented, every light bulb could function as a Li-Fi hotspot

1. SEMINAR ON
LI-FI TECHNOLOGY
Presented By: Pratibha
MCA 2nd Year

3. What is Li-Fi?
Why is it required ?
Working
Applications
Benefits
Challanges
Conclusion

4. What is Li-Fi ?

5. Why do we need an alternate
technology?

6. Transmitting Elements
LED Fluorescent Lamp

7. Receiving Elements
Photo Diode Image Sensor

18. Secure.
Green information technology.
Lighting points used as hotspots.
Fast data transfer and low cost.
Large bandwidth.
Direct binary data serving rather than topologies.
Li-Fi enabled light bulb to transmit data at speed as fast as
1 Gbps.

20. The possibilities are numerous and can be
explored further. If this technology can be
put into practical use, every bulb can be
used something like a Li-Fi hotspot to
transmit wireless data.