li fi technology ppt

1. Li-Fi Technology
By
SURAJ KUMAR YADAVA
(1173713051)
IT

2. Contents
 Abstract
 Introduction
 Drawbacks Of Before Technologies
 Difference Between The Technologies
 Working process
 Applications
 Advantages
 Conclusion

3. Abstract
One germen phycist Harald Haas has
come up with a solution he calls “data
through illumination”
–taking the fiber out of fiber optic by
sending data through an LED light
bulb that varies in intensity faster than
the human eye can follow. It’s the
same idea band behind infrared
remote controls but far more
powerful. Haas says his invention,
which he calls D- LIGHT, can
produce data rates faster than 10
megabits per second, which is
speedier than your average broadband
connection.

4. Introduction
 Li-Fi means “Light Fidelity”.
 The heart of this technology is a new
generation of high brightness light-emitting
diodes.
 It is possible to encode data in the light
by varying the rate at which the LEDs
flicker on and off to give different
strings of 1s and 0s.

6. Drawbacks Of Before Technologies

9. Difference Between The Technologies

10. Working process
LIFI offers an integrated light source that is straightforward
to integrate into a projector. In this example LIFI consists
of 5 primary sub-assemblies:
 Printed circuit board (PCB)
 RF power amplifier (PA)
 Bulb
 Optics
 Enclosure

12. Availability
Applications
Capacity
Efficiency Security

14. Advantages
 High Security
 Easy To Use
 Fast Data Transfer
 Reliable
 Harmless ness
 Low Cost

15. Conclusion
 The possibilities are numerous and can be
explored further. If his technology can be put
into practical use, every bulb can be used
something like a Wi-Fi hotspot to transmit
wireless data and we will proceed toward the
cleaner, greener, safer and brighter future.
 As a growing number of people and their
devices access wireless internet, the air waves
are becoming increasingly clogged, making it
more and more difficult to get a reliable, high-speed
signal.

16. Reference
http://www.ted.com/talks/harald_haas_wir
eless_data_from_every_light_bulb.html

17. Any Queries ?

18. Thanks
For Your Precious Time
and Kind Attention.