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IN Science & Technology ON 26 Nov, 2015
The Li-Fi system, which was invented back in 2011, has just been tested at a science lab by researchers and revealed that the promising technology absolutely delivered and had speeds 100 times faster than Wi-Fi. Li-Fi basically uses light to transmit wireless connection. Because of the success, scientists have now begun to test Li-Fi technology at offices and other industrial spaces at Estonia. The technology actually reached staggering speeds of 224 gigabits per second, more than enough for any individual to quickly download large files.
Harold Haas was the genius who invented Li-Fi back in 2011 at the University of Edinburgh. Li-Fi technology utilizes visible light that is between 400 and 800 terahertz (THz) to transfer messages through the binary code, just like other technological innovations.
Through experimentation, Harold Haas actually proved that by simply flickering light from a lone LED, more data could be transmitted than an entire cellular tower. Talk about efficiency and practicality.
By using visible light communication or VLC (no, not the media player), Li-Wi words like the morse code but happens so fast that the naked eye won't be able to notice the changes.
Data transmission using Li-Fi technology that one could hypothetically download a whopping 18 movies in just one and a half seconds. You'd have more than a day's worth of movies after just 10 seconds of downloading films.
Deepak Solanki, who is the CEO of Estonian company Velmenni, revealed that pilot projects have been undertaken in several industries that could accommodate visible light communication.
Since Li-Fi relies on lighting, it is more secure than WiFi because the latter can travel through walls and can be disturbed by other devices nearby.
While the technology is indeed promising, it would take a long time before Li-Fi could ever replace WiFi since removing all of the infrastructure needed by WiFi is very impractical and totally difficult to accomplish.