Li-Fi Internet

[Icanhazlazers]

Looks like the first "real world test of Li-Fi seems to be promising"

 

 

 

"The Li-Fi technology used by Velmenni in the pilots is able to send data at up to 1GBps - more than 100-times faster than current Wi-Fi technologies."

 

Opinion: Though I am sure it still has a long way to go, this definitely could be interesting for those who have weird layouts in their house, since it is something that is more visible and be somewhat directed to the area (such as a dead zone in the house) that needs Wi-Fi. IF anything, I think it can compete and possibly offer more reliable connection when compared to Wi-Fi range extenders and maybe even Powerline adapters. That being said, something that the article did not address and is a concern for me is the distance required to get the fast speeds that they are reporting.

 

Source: http://www.ibtimes.co.uk/lifi-internet-first-real-world-usage-boasts-speed-100-times-faster-wifi-1530021

[Moondrelor]

Looks like the first "real world" test of Li-Fi seems to be promising 

 

"The Li-Fi technology used by Velmenni in the pilots is able to send data at up to 1GBps - more than 100-times faster than current Wi-Fi technologies."

 

Though I am sure it still has a long way to go...

 

Source: http://www.ibtimes.co.uk/lifi-internet-first-real-world-usage-boasts-speed-100-times-faster-wifi-1530021

 

It's going to give everyone cancer.

Just kidding.

[AresKrieger]

It's going to give everyone cancer.

Just kidding.

I agree and I'm being serious

[Str_Mape]

I would call 1GB/s more than 100x more powerful than 3Gb/s

[Icanhazlazers]

It's going to give everyone cancer.

Just kidding.

 

You may be kidding....but I am sure they will be an article saying that is true haha.

[Moondrelor]

I agree and I'm being serious

 

You may be kidding....but I am sure they will be an article saying that is true haha.

 

I can agree with these statements. Lmao

[vanished]

is able to send data at up to 1GBps - more than 100-times faster than current Wi-Fi technologies."

Lol what? Even if we take this to mean 1 Gbyte pre second, that means they've never seen WiFi move more than 10 Mbytes per second, which means they haven't left their cave in several years...

[Icanhazlazers]

Lol what? Even if we take this to mean 1 Gbyte pre second, that means they've never seen WiFi move more than 10 Mbytes per second, which means they haven't left their cave in several years...

This is exactly what I thought when I read it. The click-bait title I saw on facebook about it being "promising" got me. And as I read on I was thoroughly confused. Though it is Wifi speeds not ethernet speeds

[AnonymousGuy]

"up to"

 

Yeah with their light bulb probably 2 inches away from a receiver.  Bet in the real world speeds are as shitty as they are with powerline ethernet.

[Icanhazlazers]

"up to"

 

Yeah with their light bulb probably 2 inches away from a receiver.  Bet in the real world speeds are as shitty as they are with powerline ethernet.

Doh! I didnt think about the distance to the receiver, and the article doesn't mention it. I have a feeling you may be right haha.

[ZetZet]

Lol what? Even if we take this to mean 1 Gbyte pre second, that means they've never seen WiFi move more than 10 Mbytes per second, which means they haven't left their cave in several years...

That's a GIGABYTE. Not Gigabit. So yes, it's not a 100 times, but healthy 10 times.

 

It's still crap since it needs direct line of sight.

[BobbyG2]

People in Chattanooga will need this to take advantage of their new found 10 gigabit residential service lol

[ApolloX75]

It's still crap since it needs direct line of sight.

Finally! A reason to move to Saskatchewan!

[vanished]

That's a GIGABYTE. Not Gigabit. So yes, it's not a 100 times, but healthy 10 times.

 

It's still crap since it needs direct line of sight.

But they claimed 100, so what WiFi are they using?  I was giving them the benefit of the doubt calling it a gigabyte.  If it's only gigabit, that means they think wifi can only go up to 1 megabyte per second... which we were beating even like 10 years ago, so...

[vanished]

Finally! A reason to move to Saskatchewan!

For those that didn't get it, background info needed for this to be funny: Saskatchewan is stereotyped as being literally flat, like infinite distance horizon

[Godlygamer23]

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[PerfectTemplar]

Is this totally different to Wi-Fi? Or are they just changing the name of Wi-Fi but faster?

[DigitalHermit]

I wonder what happens when the devices are out of LOS from each other...

[vanished]

Is this totally different to Wi-Fi? Or are they just changing the name of Wi-Fi but faster?

  

Totally different? Yes. This is using pulsing light to communicate rather than an electromagnetic field.

I wonder what happens when the devices are out of LOS from each other...

I assume they no longer connect. This could be a major improvement in security, or perhaps just a massive inconvenience. I think the plan is to use existing house lighting so you will already have an "access point" in every room though.

[DigitalHermit]

Totally different? Yes. This is using pulsing light to communicate rather than an electromagnetic field.

I assume they no longer connect. This could be a major improvement in security, or perhaps just a massive inconvenience. I think the plan is to use existing house lighting so you will already have an "access point" in every room though.

And that to me seems like a major limitation of the technology... The necessity to purchase multiple units in order to make the technology functional within the whole structure raises the cost of entry for using the tech...

It's a novel idea, yes, but it's very limited... to the point that I'm convinced that it can't stand without wifi alongside it...

and no, they're not planning on using existing house lighting... they're planning on releasing the "APs" in the form of special chipped lightbulbs... and this might call for higher quality LEDs as they need them to flicker/blink at very high frequencies so as not to be noticeable by the human eye (a flickering light is very annoying...)

[vanished]

and no, they're not planning on using existing house lighting... they're planning on releasing the "APs" in the form of special chipped lightbulbs... and this might call for higher quality LEDs as they need them to flicker/blink at very high frequencies so as not to be noticeable by the human eye (a flickering light is very annoying...)

 

Sorry, I wasn't clear about that last part.  Yes, I assume you will need replacement bulbs and/or receptacles, but the idea is that each existing spot you currently have in your house for a light would be an "AP" of sorts, as opposed to doing it like wi-fi where you need a dedicated piece of hardware for that (the equivalent here being an extra bulb you setup in every room for the purposes of Li-Fi)

[Osiris199]

Basically an unusable new technology,
- unless there are no obstructions blocking the ray of light, meaning useless while indoors, maybe in public open places

 - the 1GB/s is waaaay overkill for any ISP connection (the highest internet speed in the world is 'only" 1 Gb/s in a very limited amount of countries) especially countries like Australia and such where 802.11g isn't even saturated.

 - no (mobile) storage device has the bandwith for that kind of connection.

 - like others have said: emitting light, especially at such speeds, is a real drain of energy. I guess a phone battery would be dead in 30-60 minutes of use, if it were already optimised for today's standard batteries.

[BobbyG2]

for any ISP connection (the highest internet speed in the world is 'only" 1 Gb/s in a very limited amount of countries) especially countries like Australia and such where 802.11g isn't even saturated

Chatanooga Tennessee (and a neighboring town in Georgia), a town in North Carolina, and I believe Minneapolis Minnesota are all rolling out 10 gigabit residential fiber.

I'd imagine there might be 10 or more gigabit connections available in some other countries like South Korea or something as well, I have a hard time believing the fastest residential Internet in the world resides exclusively in the U.S.

[therock90]

This 'Li-Fi' has a long way to go and a lot of questions to be answered, seems a bit premature to be discussing this in my opinion.  

[Stefan1024]

The most important word is "lab condition".

5G reached 19.5 GBit/s in a lab, but you will never see a real world application this fast.