A team of Chinese experts and specialists have successfully developed, and experimented an innovative way of gaining access to the Digital World of the Internet using the signals sent through the Light Bulb instead of Radio Waves as in Wi-Fi. Scientists named it Li-Fi.
In case if you don’t know, Wi-Fi operates in the frequency range between 2.4 and 2.483 GHz. IEEE 802 (11a operates in the frequency range from 5.725 to 5.850 GHz.
These are often referred to as the “2.4 GHz” and “5GHz” bands). The term Li-Fi may not be new to many ears; in fact it is around since 2011, when Harald Haas had first used it in his TED Global talk on Visible Light Communication on this very context.
The Li-Fi technology operates under the principle that light can be used to carry Signals as an alternative to traditional radio frequencies; it keeps serving as long as there is no blockage of any kind, between the Light source and a Computer. Chi Nan, the I.T Professor at Shanghai’s Fudan University, who also leads the Li-Fi research team (which includes scientists from the Shanghai Institute of Technical Physics of the Chinese Academy of Sciences) have said that, “One-watt LED Light Bulb may establish an Internet connection for four
Electronic Gadgets at once.”, she added that, “A light bulb with embedded microchips can produce data rate as fast as 150Mbps.”
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