Jayam college of engineering and technology

1. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”

2. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
ABSTRACT:-
 Li-Fi, as coined by Prof. Harald Haas during his TED Global
talk, is bidirectional, high speed and fully networked
wireless communications similar to Wi-Fi.
Li-Fi is a subset of optical wireless communication (OWC)
and can be a complement to RF communication (Wi-
Fi or Cellular network), or a replacement in contexts of data
broadcasting.

3. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
CONTENTS:-
• INRODUCTION
• Li-Fi WORKS
• OUTLOOK OF LIFI
• LI-FI COMMUNICATIONS
• CONCLUSION
• REFERENCES

4. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
INRODUCTION:-
Li-Fi can be thought of as a light-based Wi-Fi
Uses light instead of radio waves to transmit
information
500 megabytes per second using a standard
white-light LED
Light Communications (VLC) PAN IEEE 802.15.7
standard
Transmission of around 10Mbps
UK broadband 123Mbps

5. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
Li-Fi WORKS:-

6. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”

7. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
OUTLOOK OF LI-FI:-

8. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
LI-FI COMMUNICATIONS:-
IEEE 802.15.7 standard
outdoor application and works from11.67
kbit/s to 267.6 kbit/s
Scalability to 10+ Gbps,
High physical link security
data transfer rate is slow

9. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
LIFI USING

10. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
ADVANTAGE:-
 Green information technology
 Lighting points Used as Hotspots
 Can be used in hospitals and even
underwater

11. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
DISADVANTAGES:-
These signals cannot penetrate walls. So
the person needs wired bulb in that room
also.
Only works if there is direct line of sight
between source and receiver.
Used for broadcast and it is difficult to
uplink.

12. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
CONCLUSION:-
5G Li-Fi technology
1.4 million light bulbs
 cheaper and brighter future of
technologies
Other networks

13. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”
REFERENCES:-
http://www.ijstr.org/final-print/oct2014/Li-
fi-A-New-Era-Of-Wireless-Communication-
Data-Sharing.pdf
https://www.youtube.com/watch?v=NaoS
p4NpkGg

14. JAYAM COLLEGE OF ENGINEERING AND TECHNOLOGY
Nallanur, Dharmapuri- 636813.
DEPARTMENT OF COMPUTER APPLICATIONS
“BETTER EDUCATION” “BETTER TOMORROW”