'Li-fi 100 times faster than wi-fi'

waltky · Nov 27, 2015

A faster way of delivering data...

'Li-fi 100 times faster than wi-fi'
27 November 2015 - A new method of delivering data, which uses the visible spectrum rather than radio waves, has been tested in a working office.

Li-fi can deliver internet access 100 times faster than traditional wi-fi, offering speeds of up to 1Gbps (gigabit per second). It requires a light source, such as a standard LED bulb, an internet connection and a photo detector. It was tested this week by Estonian start-up Velmenni, in Tallinn. Velmenni used a li-fi-enabled light bulb to transmit data at speeds of 1Gbps. Laboratory tests have shown theoretical speeds of up to 224Gbps. It was tested in an office, to allow workers to access the internet and in an industrial space, where it provided a smart lighting solution.

Light bulbs could offer a new way of delivering data

Speaking to the International Business Times, chief executive Deepak Solanki said that the technology could reach consumers "within three to four years". The term li-fi was first coined by Prof Harald Haas from Edinburgh University, who demonstrated the technology at a Ted (Technology, Entertainment and Design) conference in 2011. His talk, which has now been watched nearly two million times, showed an LED lamp streaming video. Prof Haas described a future when billions of light bulbs could become wireless hotspots. One of the big advantages of li-fi is the fact that, unlike wi-fi, it does not interfere with other radio signals, so could be utilised on aircraft and in other places where interference is an issue.

While the spectrum for radio waves is in short supply, the visible light spectrum is 10,000 times larger, meaning it is unlikely to run out any time soon. But the technology also has its drawbacks - most notably the fact that it cannot be deployed outdoors in direct sunlight, because that would interfere with its signal. Neither can the technology travel through walls so initial use is likely to be limited to places where it can be used to supplement wi-fi networks, such as in congested urban areas or places where wi-fi is not safe, such as hospitals.

http://www.bbc.co.uk/news/technology-34942685
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Mr_Truth · Nov 27, 2015

I don't know enough about technology but if it improves access to internet, great!

By the way, I like your signature: "So here is my suggestion: Forget bombs -- we should drop Obama administration policy makers on Iraq and Syria. That would ensure the ruin of the Islamic State in no time!"

during the Bush regime I suggested that about traitor Bush and his neo connivers who stood to profit from their treasonous wars. Too bad nobody followed the suggestion or we might have more peace in this world

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'Li-fi 100 times faster than wi-fi'

waltky Well-Known Member

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'Li-fi 100 times faster than wi-fi'

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