October 28, 2013

...AND CHEAPER...:

Li-Fi breakthrough: internet connections using light bulbs are 250 times faster than broadband (JAMES VINCENT, 28 OCTOBER 2013, Independent)

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.

Posted by at October 28, 2013 2:34 PM
  

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