Upcoming new technology- update version of Wi-Fi

1. DEPARTMENT OF AUTOMOBILE
ENGINEERING
PRESENTATION BY
S. USHA NANDHINI

2. Contents
Introduction to Li-Fi
Li-Fi Construction / Working
Features of Li-Fi Technology
Advantages of Li-Fi Technology
Applications of Li-Fi Technology
1
Li-Fi Vs Wi-Fi
Drawbacks & Ongoing Research

3. Light Fidelity
VLC(Visible Light Communication)
Wi-Fi
 Prof. Harald Haas

4. Wi-Fi Vs Li-Fi
 Radio Waves Communication
 Maximum Speed:150 Mbps
 Bandwidth: Limited
 Efficiency: Moderate
 Capacity: Limited & expensive
 Security: can be intercepted &
misused
 Light waves Communication
 Maximum Speed:1Gbps
 Bandwidth: Exceptional
 Efficiency: Very Low
 Capacity:10000 times than Wi-Fi
 Security: No interception
Technology Connection Security Reach Cost Bandwidth
Expansion
Speed
Wi-Fi Wireless- EMF Good Good Good Limited 150
Mbps
Li-Fi Wireless- Light Excellent Excellent Low Exceptional 1gbps

5. Radio waves Visible lights

6.  Li-Fi, or light fidelity, refers to 5G visible light
communication system
 optical orthogonal frequency-division multiplexing (O-
OFDM)
The LIFI product consists of 4 primary sub-assemblies:
Enclosure
RF power
amplifier
circuit (PA)
Printed
Circuit
Board(PCB)
Bulb

7. •
Working…

8. 18
Applications of Li-Fi Technologies

9. 19
Applications of Li-Fi Technologies

10. Applications of Li-Fi Technologies
20

11. Applications of Li-Fi Technologies
21

12. Applications of Li-Fi Technologies
22

13. Applications of Li-Fi Technologies
23

14.  Long service life
 Energy Saving
 High security
 Easy to use
 Fast data transfer
 Harmless
 Low-cost
 Capacity
 Interferences of
external light
sources
 Initial setup cost.
 Presence of light is
essential.
Advantages disadvantages