Is Li-Fi a meme?

What would be the point of this?

>>60947415
Wirel3ss speed weed no more cables

>>60947415
normalfags like this shit
red leds are more faster, green are ecologic, etc

so, trading radio waves for light waves so it couldnt travel thru objects?

For speed you can do over 100mph/GB in a closed office with florescent lights

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>>60947430
Blue is the fastest you dumbass

*puts hand over your desk just as you try to upload your work to master

>>60947450
blue leds are cooler you fucking /v/edditard

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An absolutely retarded one because we already have wave 2 802.11ac routers.

>>60947438
The appeal is supposed to be for apartment complexes because it fixes the channel interference issue and most apartments are small enough to ignore the limited transmission range.

it would be good for places like offices

How do you upload stuff with lifi?

>>60947783
Turn a torch on and off really fast

>>60947783
IrDA. Latest standard is pretty fast.

>>60947812
No but from your device to the internet

>>60947415
Cancer?

>>60947855
Same way you do with radio waves.

>>60947855
Just stop being a fag and send it in the mail

>>60947705
Or just use 5ghz, since it doesnt penetrate walls as well and theres enough spectrum to practically guarantee your own uncontested channel

>>60947873
So you'd require a torch in your device?

>>60947901
You'd need an LED compatible with the standard and a receiver in the device. Existing cellphones and other toys probably wouldn't be able to use it.

>>60947705
802.11ad will use 60GHz wifi though which basically is line of sight and will pretty much solve wifi interference issues in big apartment blocks. It will be pretty fast as well.

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>>60947450
No red is three times faster

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>>60947393
all I see is a hackable office

My house is fuckhuge and I need send a wi-fi signal across it, the room I want it to reach can get the signal already but the quality is so poor it keeps disconnecting
What is the best way to do this without putting cables everywhere? Repeaters?

>>60947450
>>60947471
So what you're saying is if we attach a shitton of red and blue LEDs to sonic and made him run, he'd be even faster and cooler right?

>>60947978
Signal boosters or repeaters.

>>60947978

Eletric socket internet wifi. Google it. Be surprised.

>>60947978
>>60948019
They're called powerline adapters.

>>60947415
Overcome the limited bandwidth in wireless systems. The 2.4 GHz band is overloaded with junk, literally since it is an ISM band. Even your microwave uses this band.

LiFi avoid this and is also license free.

>>60947393

>saving data in your plants

does it mean I could store my whole lolicon porn collection into my cactus?

>>60947981
Conversely, if we put red on both sides of him, we could effectively create a blackhole.
SCIENCE @ Sanic

>>60947981
Notice how he uses red shoes and blue body?

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>>60949069
Genius

>>60947393
so they're light bulbs with wireless access points in them?

>>60949231
they're LEDs that emit light you can't see and strobe faster than your eyes can perceive.

>>60947393
Very much so. It's a terrible idea that has no place in reality.

>>60947727
No, it would be very expensive and pointless.

>>60948827
Yet 2.4ghz works pretty well. But if you acctually have problems there's 5ghz which is already supported in everything new and not super low end.

>>60947971
Yep

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>>60947393

What if we discover that the Sun transmits coherent streams of binary data

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>>60947393
Yes, it is a meme. No, it won't work because the transfer of data is one-way.

>>60949901
It's a meme because line of sight, it's implied that the ceiling lights would have receivers in them.

If big phil from accounting walks in between the path of your computer and the light, you lose connection.

>>60947393
There's literally no reason to use this over SM fiber to the desktop, combined with normal wifi.

>SM fiber will be relevant for many years to come
>Massive bandwidth
>Very reliable
>No line-of-sight bullshit that comes with high-frequency wireless

Cheap way:
>SM fiber to the room, then cat5e/6 to the desktop. Allows for some expansion of speed, as most cat6 cable can handle up to 5G

Long term:
>SM fiber to the desktop, SFPs are like $10 at FS.com
>100G speeds are easily capable, good for the next 20 years

>>60947450
no red is faster that's why sonic wears red shoes to make up for his blue

>>60950189
it doesn't have to have direct LoS

If you can find a reason for a lot of one way traffic then it would have its use
Honestly it doesn't sound too bad but its usage is extremely limited

>>60947830
>IrDA

holy fucking shit thanks anon

>GigaIR: 512 Mbit/s – 1 Gbit/s, NRZI, 2-ASK, 4-ASK, 8b/10b

if that was around in the 90's the tech world would be a totally different place...

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>>60947971
>because wifi is somehow different from lifi
Don't be a bigoted spectrumist.

>>60948034
My parents house is fairly large (large enough to use all 3 phases) and powerline adapters are a pain in the neck to get working because of this. We ended up having to form a second network for upstairs from an old ethernet cable still in place from when we were kids and had a communal PC upstairs which then only just manages to hold a powerline connection across to my room from which the start point is furthest away/

>>60951303
Just get a cheapo unmanaged switch and you can join the two networks together.

>>60950189
>implied ceiling lights have receivers
>>60950762

There's not really any reason that it can't be a heterogeneous network wherein the LED lights carry the downstream and radio carries the upstream, or some combination of that. This is certainly useful for creating highly localized data streams, anyway.

>>60951429
How is this any better than just implementing a dense mesh of 5GHz+ WiFi APs?

*blocks your path*

all connections die

>>60947888
>There's enough spectrum to guarantee no interference

Try living in a mega city like Hong Kong.

Even 5ghz is saturated here.

>>60952811
It shouldn't be able to really reach outside of a few rooms, much less outside a building.

Though you're in china, so it wouldn't surprise me if there's some retard dumping hundreds of watts of shit onto the band.

>>60949304
5ghz has a much lower range and would require easily twice as many wireless repeaters which brings us back to lifi. Which i can't imagine being a solution to the non issue of 2.4ghz commercial equipment.

50 lights all with small ranges but all on the same cable from a bus topology is still the same bandwidth. And if they each have their own dedicated line for more bandwidth then we waste exponential amounts of money and bandwidth because two computers a phone and a thermostat don't max out any type of home bandwidth let alone commercial grade equipment.

>>60947450
WHY ARE HIS ARMS BLUE

>fcc approved lightbulb
2017, guys

>>60953594
Sorry, I'd rather not have some chinkshit LED bulb spewing EM interference across the spectrum.

>>60953644
True. No yellow light, only white light. 1488.

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>>60952718
How can white devil even compete?

considering how garbage 5ghz is i have serious reservations about lifi

>>60949304
>Yet 2.4ghz works pretty well. But if you acctually have problems there's 5ghz which is already supported in everything new and not super low end.
Well, 2.4 GHz is overcrowded and leaks in and out of your rooms, while 5 GHz is also crowded and not legal outdoors.

People demand ever faster data rates and LiFi offers absolutely enormous rates at low cost and no licensing.

>>60949901
>No, it won't work because the transfer of data is one-way.
I cannot believe the stupidity - part 01.

Really, anon, is this the extent of your networking and technology knowledge? I mean it is not as if up- and downlink will have to be in the same band, right?

In many cases the link budget is asymmetric, especially in office situations where people use, say, Citric solution. So you need big downlink bandwith to update the screen but uplink is mainly mouse movements and keyboard entries which is hardly too demanding.

So by separating these into LiFi downlink and 2.4 GHz uplink you can support a fairly sizeable office environment without running out of bandwidth and at the same time avoid cabling mess and expenses regarding patch board rework.

>>60948827
>The 2.4 GHz band is overloaded with junk, literally since it is an ISM band. Even your microwave uses this band.
Our living room Chromecast starts buffering whenever someone heats something in the microwave. Fun times.

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>>60947450
Are you fucking retarded? Red makes him fast, see the color of the speed boost power-up or, you know, sneakers that are on his feet. Blue makes Sonic cooler.

>>60947393
It's just one of those bullshit technologies such as curing aging that everyone knew would never happen but still got excited about.

>>60947438
Lel trollface

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>>60949368
>all stars are just end terminals of a galactic data stream
>our universe is just a bunch of fibre optic cables in a 4D alien datacenter

What about die-fi
WiFi that kills you

>>60957904
Smeg-Fi

So pretty much infrared all over again? No thanks.

>>60947393
>Streaming a film
>Turn off lights
>Connection lost

>>60957276
>We are about to be castrated by our microwave oven.
I would consider some better shielding or even a new microwave.

>Fun times
Well, I guess you could say it is an upside that you would no longer need contraceptives.

>>60947479
>6.77Gb/s
>heavy breathing

>>60953644
That is already a big problem. The regulator electronics emits a lot of noise, mainly on the HF spectrum so not that many complain yes since it just makes a country wide haze that cannot be located.

Since the bulbs can last a decade it means the problem will be with us for a long, long time.

This is bullshit. Everyone knows IPoAC is the future.

>>60960156
Fucking this, capible of 32gbps per mile per carrier. Literally the future for large data transfers.

>>60960156
>>60960285
That is still peanuts compared to 15,600 tb/s. If you are man enough, that is.
http://williamgibsonblog.blogspot.no/2003/04/ (bottom)

>>60947450
fuck you everyone knows plaid is the fastest

>>60947393
finally i can carry the thermostat around with me

>>60960976
Yeah, but such a transfer is out of reach, and a bit useless. The distance it can go is short, and writing to and reading from the medium is going to be slow as shit.
IPoAC, meanwhile, has been implemented and used in the field before. And it will get way better as memory density climbs.
It would actually be worthwhile in places like Australia for backend data transfers for people like Netflix.

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>>60947479

threadripper mobos like zenith already have 802.11ad onboard

in b4 802.11ay

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>>60947393
>Mfw someone accidentally turns off the encoded data switch

>>60947393
This is how snow crash infects the world.