October 28, 2013
Li-Fi breakthrough: internet connections using light bulbs are 250 times faster than broadband (JAMES VINCENT, 28 OCTOBER 2013, Independent)
Posted by Orrin Judd at October 28, 2013 2:34 PM
Li-Fi, an alternative to Wi-Fi that transmits data using the spectrum of visible light, has achieved a new breakthrough, with UK scientists reporting transmission speeds of 10Gbit/s - more than 250 times faster than 'superfast' broadband. [...]Many experts claim that Li-Fi represents the future of mobile internet thanks to its reduced costs and greater efficiency compared to traditional Wi-Fi.Both Wi-Fi and Li-Fi transmit data over the electromagnetic spectrum, but whereas Wi-Fi utilises radio waves, Li-Fi uses visible light. This is a distinct advantage in that the visible light is far more plentiful than the radio spectrum (10,000 times more in fact) and can achieve far greater data density.Li-Fi signals work by switching bulbs on and off incredibly quickly - too quickly to be noticed by the human eye. This most recent breakthrough builds upon this by using tiny micro-LED bulbs to stream several lines of data in parallel.