LI-FI (LIGHT-FIDELITY)
CST 300L Fall 2013
What is Light Fidelity?
Data communication through Light
How does it work?
LED lights Orthogonal Frequency Division Multiplexing
Harald Haas explains how it works
from: http://youtu.be/NaoSp4NpkGg?t=4m40s
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
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/wp-content/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/sys-images/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/site-content/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/best-five-benefits-of-li-fi-technology/ [Light Fidelity Uses]. Retrieved November 23, 2013, from: http://www.extremetech.com/wp-content/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-are-250-times-faster-than-broadband-8909320.html