Connecting your smartphone to the web with just a lamp -- that is the
promise of Li-Fi, featuring Internet access 100 times faster than Wi-Fi with
revolutionary wireless technology.
French start-up Oledcomm demonstrated the technology at the Mobile World
Congress, the world's biggest mobile fair, in Barcelona. As soon as a
smartphone was placed under an office lamp, it started playing a video.
The big advantage of Li-Fi, short for "light fidelity", is its lightning
speed.
Laboratory tests have shown theoretical speeds of over 200 Gbps -- fast
enough to "download the equivalent of 23 DVDs in one second", the founder
and head of Oledcomm, Suat Topsu, told AFP.
"Li-Fi allows speeds that are 100 times faster than Wi-Fi" which uses radio
waves to transmit data, he added.
The technology uses the frequencies generated by LED bulbs -- which flicker
on and off imperceptibly thousands of times a second -- to beam information
through the air, leading it to be dubbed the "digital equivalent of Morse
Code".
It started making its way out of laboratories in 2015 to be tested in
everyday settings in France, a Li-Fi pioneer, such as a museums and shopping
malls. It has also seen test runs in Belgium, Estonia and India.
Dutch medical equipment and lighting group Philips is reportedly interested
in the technology and Apple may integrate it in its next smartphone, the
iPhone7, due out at the end of the year, according to tech media.
With analysts predicting the number of objects that are connected to the
Internet soaring to 50 million by 2020 and the spectrum for radio waves used
by Wi-Fi in short supply, Li-Fi offers a viable alternative, according to
its promoters.