These days everyone is using internet throughout Wi-Fi connection and because of the huge increasing in utilization the Wi-Fi networks by millions of people around the world, these networks are put under big pressure to give high speeds. (So whether you are using wireless internet in a coffee shop, stealing it from the person next door, or competing for bandwidth at a conference, you have probably gotten frustrated at the slow speeds you face when more than one device is tapped into the network. As more and more people and their many devices access wireless internet, clogged airwaves are going to make it. One germen phycist.Harald Haas has come up with a solution he calls “data through illumination” –taking the fibber out of fiber optic by sending data through an LED light bulb that varies in intensity faster than the human eye can follow. It is the same idea band behind infrared remote controls but far more powerful. Haas says his invention, which he calls D-LIGHT, can produce data rates faster than 10 megabits per second, which is speedier than your average broadband connection. He envisions a future where data for laptops, smart phones, and tablets is transmitted through the light in a room. In addition, security would be snap – if you cannot see the light, you cannot access the data)[1].

[1] International Journal of Applied Engineering Research, ISSN 0973-4562 Vol.7 No.11 (2012), Jyoti Rani1, Prerna Chauhan2, Ritika Tripathi3,  http://www.ripublication.com/ijaer.htm  

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