Lifi and Wifi existing thrilling inventions.

1. LIFI ANDWIFI
TECHNOLOGY
Presented by
BS IT 4th
University of Gujrat

3. LiFiTechnology:-
History

4. LiFiTechnology:-
Introduction

5. Technical Detail
LiFiTechnology:-

6. Issues of Radio Spec.

7. Issues of Radio Spec.
Radio wave| Ifrared|Visible| Ultra violet| X-rays| Gamma rays
Insuffient
spectrum for
increasing data Which is not
used so far.
Dangerous for
human body
Used for
hospitals
Low power
application
It is not used
generally

8. Standars and Protocols

9. Advantages of Lifi
More than 10Gbps download in 30 sec(theoreticaly)-
Cost Efficient(due to use of LEDs)-
Fast and easy transmission-
Bandwidth(10,000 times greater than radio waves)-
More availability-
Highly secure-

10. Disdvantages of Lifi
Short range-
Low reliability-
High Installation cost-
Connectivity while moving-
Shadowing-
Presence of Light necessary-
Efficiency-Less with bulbs, More with LEDs

12. History
• 1990 – 802.11
• 1999 – 802.11 a and b
• 2003 – 802.11g
Standers
IEEE

13. Connect the systems to
Internet and and wired
network.
Wireless Environment
Access to
multiconnections
Laptop Mobility
Use RadioWave Networking got tangle
Introduction

14. Technical Details
Basic Concept
similar to
WalkieTalkies
Base Station:
Access point
in Computer.
A Bridge for
the traffic.

15. Wifi Network
Architectur
AdHoc Mode
Infrastructure Mode

16. Advantages of Wifi
Advantages if Wifi
Wireless-
Low Cost-
Mobility-
Expandability-
Deployment-
Productivity-
Convenience-

17. Disadvantages of Wifi
Interference-
Degradation in
performance-
High power
consumption-
Limited range-
Data security risk-
Speed-

19. Any Question……..????