this post was submitted on 17 Jul 2023
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156
Light-based “LiFi” is stunningly fast, notably fragile—and now standardized (arstechnica.com)
submitted 2 years ago by PopBobert@lemmy.world to c/technology@lemmy.world
26 comments fedilink hide all child comments
 

224GB/s, killer security, no radio interference—but you can't block the beam.

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[–] Candelestine@lemmy.world 28 points 2 years ago (8 children)

I mean ... that's great for outer space. Not so much down here, except in pretty niche applications.

I mean, you're basically making a data lamp. Hold your phone up to it, get super fast wifi. That's ... niche at best, here on Earth. More refined VR eventually, I suppose?

[–] eroc1990@lemmy.parastor.net 15 points 2 years ago* (last edited 2 years ago) (5 children)

Could also be useful for internal data transmission inside a chassis where, for whatever reason, a direct physical connection isn't possible.

EDIT: Spelling

[–] BitSound@lemmy.world 8 points 2 years ago (4 children)

Yeah, this could be great for clustered computing. I only did software for a supercomputer company a while back so maybe there's reasons this wouldn't work, but it seems pretty useful within a rack. It'd probably make people over at !cableporn@lemmy.world sad to see those cables go away though.

[–] feitingen@lemmy.world 2 points 2 years ago

Not really since then all computers share the same link and bandwidth, and latency will be very inconsistent with more than two computers since there will be crosstalk and retransmissions.

With cheaper cables, each computers can max out the bandwidth of each cable, and get much lower latency since there's no crosstalk.

The only benefit is that you don't have to run cables, everything else is worse.

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