Light fidelity
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Transcript of Light fidelity
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• Introduction of li-fi•Genesis of li-fi•Present scenario•Issues with radio waves and light waves•Principal of li-fi Technology•Visible light communication•Working of li-fi technology•Comparisons between li-fi and Wi-Fi•Future applications•Conclusion•References
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LI FI- LIGHT FIDELITY TECHNOLOGY
transmission of data through illumination, that is sending data through a LED light bulb that varies in intensity faster than human eye can follow.
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•Invented by German physicist HARALDHAAS ,from the university of Edinburgh, U.K•He demonstrated it in the year 2012
HARALD HAAS
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1.4 Million 5 Billion
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Issues with radio waves and light waves
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• The on-off activity of LEDs enables a kind of datatransmission using binary codes.
• Switching on an LED is a logical ‘1’;switching it offis a logical ‘0’.
• A light sensitive device (photo detector) receives thesignal and converts it back into original data.
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Sending of data
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Illustration of data transfer in Li-Fi
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An Environment of li-fi
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Petroleum and chemical plants
Petroleum and chemical plants Hospitals (in new medical
instruments)
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• Li-Fi Technology is an emergingtechnology and it overcomes many flaws oftraditional Wi-Fi.• However, there are some drawback inthis technology and according to research ,they will overcome in the future.
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1. New epoch of wireless communication: light fidelity
Authors: Megha Goyal, Dimple Saproo, Asha Bhagarshra,
Journal: International Journal of Innovative Research in Computer
and Communication Engineering ISSN/EISSN: 23209798 23209801
Year:2013 Volume: 1 Issue: 2
http://ijircce.com/upload/2013/april/52_New%20Epoch.pdf
2. Li-Fi (Light Fidelity)-The future technology In Wireless
communication
http://www.ripublication.com/ijaer.htm
3. Harald Haas, ‘Wireless data from every light bulb’, TED Global,
Edinburgh, July 2011.
4. en.wikipedia.org/wiki/visible_light_communication
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THANK YOU
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