Li-Fi is 100 times Faster than Wi-Fi Technology

  

Li-Fi new technology to get a speed 100 times faster than Wi-Fi.
it’s time to shift from Wi-Fi to Li-Fi, an alternative technology that is100 times faster than the average speeds of Wi-Fi.
Li-Fi is a new wireless technology that transmits high-speed data using light (i.e. Visible Light Communication or VLC) rather than radio bands.
In short, Li-Fi is a Super-Fast alternative to Wi-Fi.
Earlier this year, scientists achieved mind-blowing speeds of 224 gigabits per second (Gbps) in the lab using Li-Fi. It's believed that this technology has the potential to change everything about the way we use the Internet today.

Who Invented Li-Fi?

The Li-Fi technology was originated in 2011 by German physicist Harald Haas , who outlined the idea of using light bulbs as wireless routers during a TED Talk. He demonstrated that with a flickering light from an LED, one could transmit more data than a cellular tower.

According To International Business Times, chief executive Deepak Solanki said that the technology could reach consumers "within three to four years".

How Does Li-Fi Work?

This is how pureLiFi describes the operation of its technology:

When a constant current is applied to an LED [light-emitting-diode] lightbulb, a constant stream of photons are emitted from the bulb which is observed as visible light. If the current is varied slowly, the output intensity of the light dims up and down. Because LED bulbs are semiconductor devices, the current, and hence the optical output, can be modulated at extremely high speeds which can be detected by a photodetector device and converted back to electrical current. The intensity modulation is imperceptible to the human eye, and thus communication is just as seamless as RF [radio frequency technology]. Using this technique, high-speed information can be transmitted from an LED lightbulb.
 
Here's how Li-Fi works, according to pureLiFi.
Source:-IBT