wifi and lifi technology
DESCRIPTION
Lifi and Wifi existing thrilling inventions.TRANSCRIPT
![Page 1: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/1.jpg)
LIFI AND WIFI TECHNOLOGY
Presented by
BS IT 4th
University of Gujrat
Ummar Ahmed
![Page 2: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/2.jpg)
![Page 3: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/3.jpg)
LiFi Technology:-
History
Professor Harald Haas (Uni. of Edinburgh)
Day of Invention(October , 2011)
OEM
Oxford University
![Page 4: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/4.jpg)
LiFi Technology:-Introduction
“Light Fedility”
Bidirectional
VLC (Not Radio)
Optical Wireless Communication
![Page 5: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/5.jpg)
Technical Detail
LiFi Technology:-
5G VLC
Switching (Nanoseconds)
Secure from Hacking
Walls reflection 70 Mbits/s
Work in sensitive areas
Light Spec = 10,000 * Radio
No Pot. Spec. Limit
![Page 6: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/6.jpg)
Issues of Radio Spec.
Capacity Availability
EfficiencySecurity
![Page 7: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/7.jpg)
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
![Page 8: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/8.jpg)
Standars
and Protocols
802.11 Protocols
IEEE Std fail in Optical wireless communication
![Page 9: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/9.jpg)
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-
![Page 10: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/10.jpg)
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
![Page 11: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/11.jpg)
![Page 12: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/12.jpg)
History
•1990 – 802.11•1999 – 802.11 a and b•2003 – 802.11g
Standers IEEE
![Page 13: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/13.jpg)
Connect the systems to Internet and and wired network.
Wireless Environment
Access to multiconnections Laptop Mobility
Use Radio Wave Networking got tangle
Introduction
![Page 14: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/14.jpg)
Technical Details
Basic Concept similar to Walkie Talkies
Base Station: Access point in Computer.
A Bridge for the traffic.
![Page 15: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/15.jpg)
Wifi
Network Architectur
AdHoc Mode
Infrastructure Mode
![Page 16: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/16.jpg)
Advantages of Wifi
Advantages if Wif
i Wireless-
Low Cost-
Mobility-
Expandability-
Deployment-
Productivity-
Convenience-
![Page 17: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/17.jpg)
Disadvantages of Wifi
Interference-
Degradation in performance-
High power consumption-
Limited range-
Data security risk-
Speed-
![Page 18: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/18.jpg)
![Page 19: Wifi and Lifi Technology](https://reader033.vdocument.in/reader033/viewer/2022061615/5549c4c6b4c905fc7f8b54f1/html5/thumbnails/19.jpg)
Any Question……..????
Thank You for your
Attention