Everyone is talking about Li-Fi. The name Li-Fi stands for “Light Fidelity”. Instead of using traditional radio frequencies, to transmit information, Li-Fi technology uses light beams, specifically from LED bulbs.
In 2011 Harlald Haas, from the University of Edinburgh, first developed the theory behind Li-Fi. He proved that HD video could be transmitted using one LED bulb.
Recently UK researchers have achieved data transmission speed of 10 GB/s via Li-Fi, by using three LEDs combined. This research team has been using OFDM digital modulation transmitting millions of symbols per second. Li-Fi seems to have many advantages: In addition to this speed, Li-Fi will improve the energetic efficiency and the cost of existing wireless networks. Not to mention the increase in security due to the impossibility of light to penetrate walls.
One can easily imagine a lot of Li-Fi applications in our day-to-day routine: traffic lights that provide information about the traffic situation directly to our car, high speed internet connections in aircrafts or Li-Fi hotspots in any lamppost. The infrastructure is already there, we just need to find the right applications for this technology. However Li-Fi still has its limitations and needs to be developed much more to become an important technology in the future. Anyway seems reasonable to think that Li-Fi could be useful soon in some environments for specific applications.
What do you think? Will Li-Fi become an important technology in our day-to-day routine?
For more info check out: Li-Fi Consortium site