Researchers at the University of Oxford have reached a new milestone in networking by using light fidelity (Li-Fi) to achieve bi-directional speeds of 224 gigabits per second (Gbps). To put this in perspective, 100Gbps fibre optic core networks have only become a reality in recent years and have yet to become ubiquitous.

Li-Fi is still a long way from being used commercially, but by way of illustration, using a 224Gbps speed would technically allow for 18 movies of 1.5GB each to be downloaded in a single second.


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The technology is being developed as a potential alternative to Wi-Fi, and because it uses visible light spectrum to transmit data, when coupled with a high-speed fibre internet connection, researchers believe this can offer speeds far greater than those attained by existing contemporary Wi-Fi technology (600Mbps).

The research, published in the journal Photonics Technology Letter, details how the specialised broadcast LEDs and receivers operate with different fields of view and bands that affect the data transmission speeds.

"The link operates over ~3 m range at 224 Gb/s (6 x 37.4 Gb/s) and 112 Gb/s (3 x 37.4 Gb/s) with a wide field of view (FOV) of 60° and 36°, respectively. To the best of our knowledge, this is the first demonstration of a wireless link of this type with a FOV that offers practical room-scale coverage," the report states.

http://www.ibtimes.co.uk/lifi-internet-breakthrough-224gbps-connection-broadcast-led-bulb-1488204

Quote from: Solar on February 23, 2016, 11:06:03 AM
Researchers at the University of Oxford have reached a new milestone in networking by using light fidelity (Li-Fi) to achieve bi-directional speeds of 224 gigabits per second (Gbps). To put this in perspective, 100Gbps fibre optic core networks have only become a reality in recent years and have yet to become ubiquitous.

Li-Fi is still a long way from being used commercially, but by way of illustration, using a 224Gbps speed would technically allow for 18 movies of 1.5GB each to be downloaded in a single second.


Why advertise with us
The technology is being developed as a potential alternative to Wi-Fi, and because it uses visible light spectrum to transmit data, when coupled with a high-speed fibre internet connection, researchers believe this can offer speeds far greater than those attained by existing contemporary Wi-Fi technology (600Mbps).

The research, published in the journal Photonics Technology Letter, details how the specialised broadcast LEDs and receivers operate with different fields of view and bands that affect the data transmission speeds.

"The link operates over ~3 m range at 224 Gb/s (6 x 37.4 Gb/s) and 112 Gb/s (3 x 37.4 Gb/s) with a wide field of view (FOV) of 60° and 36°, respectively. To the best of our knowledge, this is the first demonstration of a wireless link of this type with a FOV that offers practical room-scale coverage," the report states.

http://www.ibtimes.co.uk/lifi-internet-breakthrough-224gbps-connection-broadcast-led-bulb-1488204

100Gbit waves have been around a couple of years, so has DWDM, typically delivering 80 waves (colors) for 8Tbit, over a pair of fibers.  Bi-directional stuff is crap.

Filling your house with UV waves of light, is that such a good idea?  Wear UV filtered glasses often? 
So some guy with a telephoto lens mounted on a Detector can capture everything from a distance never imagined before.

Both the switching speed and light power level increase as bandwidth increases.  Typically a 10Gig wave will be in the -5db range, 100Gbit +1db range, any of those levels will blind a person quickly

Quote from: Hoofer on February 25, 2016, 03:49:21 PM
100Gbit waves have been around a couple of years, so has DWDM, typically delivering 80 waves (colors) for 8Tbit, over a pair of fibers.  Bi-directional stuff is crap.

Filling your house with UV waves of light, is that such a good idea?  Wear UV filtered glasses often? 
So some guy with a telephoto lens mounted on a Detector can capture everything from a distance never imagined before.

Both the switching speed and light power level increase as bandwidth increases.  Typically a 10Gig wave will be in the -5db range, 100Gbit +1db range, any of those levels will blind a person quickly

Based on what I read, you have to have your unit really close to the light, or an ridiculously bright light.
For someone like me, I'd just has a router under a single light.

Quote from: Solar on February 25, 2016, 05:40:58 PM
Based on what I read, you have to have your unit really close to the light, or an ridiculously bright light.
For someone like me, I'd just has a router under a single light.

That was what I was thinking when I first saw that yesterday.  Would be ok from tower to tower then tower to a dish on the roof then to a router in your house. 

Research has been ongoing for decades for a faster, more reliable transport media, so far, Single mode fiber is the fastest, goes the farthest, is the most secure, and uses the least amount of power.  Nothing else is coming close, probably gonna be OC for a long time (optical carrier).

The last big push / advancement(s) have been squeezing more and more "channels" and/or waves of light, closer and closer together.  But, the equipment is still BIG, requires a ton of clean power, generates kilowatts worth of heat, and operates at light power levels that literally burn anything on the ends of the connectors.  A speck of dirt, thin film of moisture, or grease, is fatal in a relatively short period of time - burning BLACK... and destroying gear.  Lately, the big bandwidth transport gear is getting smaller and smaller, sometimes at the expense of intelligence (dumb boxes are usually small, and rely on physical connections, static, hard connections.)

Transport is a great field to work in, and with a little understanding, quite enjoyable.

Quote from: Hoofer on February 25, 2016, 06:08:15 PM
Research has been ongoing for decades for a faster, more reliable transport media, so far, Single mode fiber is the fastest, goes the farthest, is the most secure, and uses the least amount of power.  Nothing else is coming close, probably gonna be OC for a long time (optical carrier).

The last big push / advancement(s) have been squeezing more and more "channels" and/or waves of light, closer and closer together.  But, the equipment is still BIG, requires a ton of clean power, generates kilowatts worth of heat, and operates at light power levels that literally burn anything on the ends of the connectors.  A speck of dirt, thin film of moisture, or grease, is fatal in a relatively short period of time - burning BLACK... and destroying gear.  Lately, the big bandwidth transport gear is getting smaller and smaller, sometimes at the expense of intelligence (dumb boxes are usually small, and rely on physical connections, static, hard connections.)

Transport is a great field to work in, and with a little understanding, quite enjoyable.

Considering the speed is limited by the hardware and not the fiber optic I am sure we have a LOT of room for improvement.  Electronics get faster and smaller all of the time. I don't much care for the possible security risks of Li-Fi.

Fiber is extremely expensive where few customers can support it, while light transmission via existing utility is comparatively dirt cheap at a fraction of the price.
Rural America suffers a speed gap and is dying for high speed without restriction, so the first offer that comes along will own the mkt, a mkt of millions of untapped customers willing to shell out big money for the service, which in most cases will actually save them money in the long run.

There is research into a new technology using quantum entanglement as a medium to transfer data. Scientist theorize entangled particles mirror each other instantly and over any distance. Instantaneously and over ANY distance? Are we talking theoretical faster than light communication here?

https://en.wikipedia.org/wiki/Quantum_complex_network
http://www.extremetech.com/extreme/125885-the-first-universal-quantum-network-built-in-germany

Quote from: ZQuickSilverZ on February 26, 2016, 06:28:14 AM
Considering the speed is limited by the hardware and not the fiber optic I am sure we have a LOT of room for improvement.  Electronics get faster and smaller all of the time. I don't much care for the possible security risks of Li-Fi.

Yup!  it's mirrors and prisms..., a 1Gbit is too fast for computers, 10GBit is too fast for most routers, and 100Gbit is limited to a small handful of the biggest routers - I'm not referring to PORT SPEED, it's processing speed.... handshaking isn't just for politicians.  LOL

Quote from: Hoofer on February 26, 2016, 03:26:48 PMhandshaking isn't just for politicians.  LOL

Quote from: Hoofer on February 26, 2016, 03:26:48 PM
Yup!  it's mirrors and prisms..., a 1Gbit is too fast for computers, 10GBit is too fast for most routers, and 100Gbit is limited to a small handful of the biggest routers - I'm not referring to PORT SPEED, it's processing speed.... handshaking isn't just for politicians.  LOL

True, most computers can't buffer one tenth of that amount, let alone process it, but if they can pull this off, it will kill places like Silicon valley and the grip Dims have on the industry in consolidating it in leftist strongholds.

Quote from: Solar on February 29, 2016, 06:21:02 AMTrue, most computers can't buffer one tenth of that amount, let alone process it, but if they can pull this off, it will kill places like Silicon valley and the grip Dims have on the industry in consolidating it in leftist strongholds.

All I heard was H-1B Visa.