Comment on Wifi 15 gigabytes per second — Researchers demo invention

• ColeSloth@discuss.tchncs.de ⁨1⁩ ⁨week⁩ ago

  The issue will be less about “range” and more about being able to go through a wall. Higher frequency makes for shorter radio waves that are closer together. The more this is done, the less it can go through solid objects and still be decipherable.

  It’s like a sound wave. That big low frequency bass sound can shake your walls while playing from in your neighbors house. You can’t make out or hear a single word being sung, though. Frequency is too high to make it through to you.

  This tech can be nicely used for wireless VR and maybe a couple other things that need to move data at super low latency at a local level, but beyond that, it will be kind of useless for anything over the next decade.

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• n3m37h@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

  5G mm wave can be blocked by paper ffs, range doesnt matter if a leaf can block the line of sight. Idk why we can use the low bandwidth long range 900-1200mhz and just use an array of atenna send out multiple channels to increase bandwidth. I’d prefer range over bandwidth I wont utilize

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  • felixwhynot@lemmy.world ⁨1⁩ ⁨week⁩ ago

    Tried to fact check this but I can’t find evidence that 5g can be blocked by paper. Looks like it’s in 24-28ghz and while it can be blocked with materials the density matters. So maybe like a few books thick of paper but not one sheet?

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    • jj4211@lemmy.world ⁨1⁩ ⁨week⁩ ago

      Note that this demo takes things over 100ghz. So the challenges associated with mmwave (and wigig) are even more.

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      • felixwhynot@lemmy.world ⁨6⁩ ⁨days⁩ ago

        Good point thx

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    • n3m37h@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

      Was being hyperbolic m8. The human body will block mmwave

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