Transcript Li-Fi (light

CST 300L Fall 2013
What is Light Fidelity?
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Data communication
through Light
How does it work?
LED lights
 Orthogonal Frequency Division Multiplexing
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Harald Haas explains how it works
from:
http://youtu.be/NaoSp4NpkGg?t=4
m40s
Key Person

Professor Harald Haas, University of
Edinburgh
 Advantages
 Disadvantages
 Means
for Future
Advantages
Faster Data Speeds
 More access to Internet
 Use in areas where Data
Communication is limited

Disadvantages
Cannot travel from room to room
 Detector must face the source of light

Means for Future
Internet on Planes/Anywhere that uses
Light
 Saves Lives

Any Questions?
References
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Arrow Webzine. (2013). Li-fi (light fidelity)- The future technology in wireless communication. Retrieved from
http://www.aagneyam.com/blog/?p=80207
[Cyber Wars]. Retrieved November 24, 2013, from: http://cdn.ndtv.com/tech/images/cyber_wars_635.jpg
[Disadvantages]. Retrieved November 24, 2013, from: http://bauscharddebate.com/wpcontent/uploads/2013/10/disadvantages_of-online-shoping.jpg
[Harald Haas]. Retrieved November 23, 2013, from:
http://www.independent.co.uk/incoming/article8909316.ece/ALTERNATES/w620/haas.jpg
[Harald Haas and Light Fidelity]. Retrieved November 23, 2013, from: http://static.guim.co.uk/sysimages/Observer/Pix/pictures/2010/11/4/1288897164819/Harald-Haas-006.jpg
Haas, Harald. (2011). Harald haas: Wireless data from every light bulb. Retrieved from
http://www.ted.com/talks/harald_haas_wireless_data_from_every_light_bulb.html
Haas, Harald. (2011). Professor Harald haas. Retrieved from http://www.see.ed.ac.uk/wordpress/hxh/about/
[How does Li-fi work]. Retrieved November 23, 2013, from: http://newtecharticles.com/sitecontent/uploads/2013/04/working-of-li-fi-technology.png
Khan, Anas Iqbal. (2013). Best five benefits of li-fi technology. Retrieved from http://www.technewspaper.net/bestfive-benefits-of-li-fi-technology/
[Light Fidelity Uses]. Retrieved November 23, 2013, from: http://www.extremetech.com/wpcontent/uploads/2013/02/lifi_environment.jpg
Navyatha,N.,Prathyusha, T.M., Roja, V., Mounika, M. (2013). Li-Fi(Light fidelity)- LED based alternative. Retrieved
from http://www.ijser.org/researchpaper%5CLi-Fi-Light-fidelity-LED-Based-Alternative.pdf.
TED. (2011), Speakers harald haas: Communications technology innovator. Retrieved from
http://www.ted.com/speakers/harald_haas.html
Thomson, Iain. (2013). Forget wi-fi, boffins get 150mbps li-fi connection from a lightbulb. Retrieved from
http://www.theregister.co.uk/2013/10/18/forget_wifi_chinese_boffins_get_150mbps_lifi_connection_from_a_lightbulb/
Vincent, James. (2013). Li-fi revolution : Internet connections using light bulbs are 250 times faster than broadband.
Retrieved from http://www.independent.co.uk/news/science/lifi-revolution-internet-connections-using-light-bulbs-are250-times-faster-than-broadband-8909320.html