Technology

LiFi: Wi-Fi Rendered Through An LED Light Bulb

Li-Fi: A Wi-Fi  connectivity that is rendered through the light rays emitted by light bulb is one step closer according to Chinese scientists.

LiFi: A Wi-Fi  connectivity that is rendered through the light rays emitted by light bulb is one step closer according to Chinese scientists.

Chi Nan, IT professor at Sanghai’s Fudan University narrated that this microchipped bulb can produce data speeds of upto 150 megabits per second (Mbps) which is faster than the average broadband connection in China.

Some researchers also articulated that a one-watt LED light bulb would be enough to provide net connectivity to four computers, provided the light is used as a carrier of conventional radio frequencies as in Wi-Fi.

Li-Fi promises to be cheaper than existing wireless radio systems and more energy-efficient. However, Li-Fi still remains hypothetical as there’s no evidence video or photos showing the technology in action, but they believe there is still a long way to make Li-Fi a commercial success.

Chi also added that wherever there is an LED light bulb, there is an internet signal and if the light is either turned-off or blocked, the signal would be cut off – this is indeed quite a drawback.

The term Li-Fi or light fidelity was coined by Harald Haas, an expert in optical wireless communications at the University of Edinburgh, UK and it also refers to a type of visible light communications (VLC) that delivers high-speed connectivity in the same way as Wi-Fi. He demonstrated how a microchip embedded LED light bulb could transmit data at one of the conference held at TEDGlobal in mid 2011.

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