A new data connectivity technology has been invented by Chinese scientist named as – Li-Fi (Light-Fidelity), it is a label for wireless-communication systems using light as a carrier instead of traditional radio frequencies, as in Wi-Fi — Wireless-Fidelity.
In an experiment in Shanghai’s Fudan University of China, four computers were successfully connected to internet through 1-watt LED bulb using light as a carrier instead of traditional radio frequencies, as in Wi-Fi.
Chi, who leads a Li-Fi research team including scientists from the Shanghai Institute of Technical Physics of the Chinese Academy of Sciences explained that the new discovery dubbed as ‘Li-Fi’, a light bulb with embedded microchips can produce data rates as fast as 150 megabits per second, which is speedier than the average broadband connection in China.
The new Li-Fi technology will much cheaper as well as much efficient and speedier than traditional Wi-Fi technology that existed almost in every offices and netizens’ urban homes worldwide. 10 sample Li-Fi kits will be on display at the China International Industry Fair that will start from November 5 in Shanghai.
Li-Fi has the advantage of being able to be used in electromagnetic sensitive areas such as in aircraft, nuclear power plants, oil & gas installations and other places without causing interference. However, the light waves used cannot penetrate walls which makes Li-Fi significantly more secure relative to Wi-Fi.
If the light is blocked, then the signal will be cut off and in order to use Li-Fi one has to replace old-fashioned incandescent bulbs with LED light bulbs. However there is long way to go for Li-fi to become as commercially successful as Wi-Fi currently is.
The term Li-Fi was coined by Professor Harald Haas from the University of Edinburgh in the UK and first used in his 2011 TED Global talk on visible light communication and Li-fi refers to a type of VLC technology that delivers a networked, mobile, high-speed communication solution in a similar manner as Wi-Fi.
[Image Credits – ExtremeTech]