2. Why LI-FI ?
It is a “Wireless Optical Networking Technology”.
As it uses light for transmission of data and the operation of whole system is depends
on precise transmission of data through light.
Therefore, this system is termed as “Li-Fi”.

3. FACE OF LI-FI

4. WhAT IS LI-FI TEChNOLOGy?

5. In Li-Fi technology the transmission source is LED or
Fluorescent blub.
Various devices that requires wireless medium for
communication are used as receiver.
Li-Fi technology uses visible light spectrum for transmission of
data.
As it uses visible light spectrum for communication ,this
technology is also called as VLC (Visible Light Communication).
Due to use of Visible light spectrum Li-Fi system has larger
bandwidth as compared to other systems.

6. NECESSITY OF LI-FI SYSTEM
The essential factors for designing of a Li-Fi system are as
follows:
1.Presence of light.
2. Line Of Sight.
3. Fluorescent Blub or LED.

7. LI-FI SYSTEM

8. ADVANTAGES OF LI-FI
Data transfer takes place at very high speed.
It provides a secure communication.
Harmless for human beings as it uses VLC
Doesn’t interferes with other system operation as light is
used as source of transmission.

9. DISADVANTAGES OF LI-FI
Range of communication is limited as light cannot pass through
opaque object or obstacles.
It can’t cover a large area as that of radio waves.
It can get affected by external light interference like sun, normal
bulbs.
The implementation cost of VLC system is high.

10. APPLICATIONS OF LIFI

14. REFERENCES
International Journal of Research & Development in Technology and Management Science –Kailash
by Akshit Aggarwal and
Deepali Jhanji. Volume - 21| Issue 1 | ISBN - 978-1-63102-445-0 | March 2014
seminarprojects.com/s/seminar-report-on-lifi
http://en.wikipedia.org/wiki/Li-Fi
www.lificonsortium.org/
A Study on LiFi – Light Fidelity Technology by Vaishali Jadhav International Journal of Scientific &
Engineering Research, Volume 5, Issue 6, June-2014 709 ISSN 2229-5518.
Light-Fidelity: A Reconnaissance of Future Technology by Dhakane Vikas Nivrutti, Ravi
Ramchandra Nimbalkar .Volume 3, Issue 11, November 2013 ISSN: 2277 128X International Journal
of Advanced Research in Computer Science and Software Engineering.
http://www.oledcomm.com/
Li-Fi (Light Fidelity)-The future technology In Wireless communication by Jyoti Rani, Prerna
Chauhan, Ritika Tripath . International Journal of Applied Engineering Research, ISSN 0973-4562
Vol.7 No.11 (2012)