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Wi-Fi Alliance starts certifying hardware for Wi-Fi 7 (www.theregister.com)

submitted 10 months ago by [email protected] to c/[email protected]

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Using optimization techniques, the wireless spec can support a theoretical top speed of more than 40Gbps, though vendors like Qualcomm suggest 5.8Gbps is a more realistic expectation

That is insane! Not that I would, but this could utilise the full pipe of my home connection on wifi only!

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[–] [email protected] 5 points 10 months ago (1 children)

Call me sceptical then. We're pushing Shannon's law essentially already

[–] [email protected] 4 points 10 months ago (1 children)

Call me sceptical then

You're sceptical! 😁

I've not heard of Shannon's law, but if you're referring to Shannon-Hartley theorem then, from my brief understanding, wifi 7 will still bring improvements in bandwidth purely from doubling the channel width. Doubling the number of antennas is probably not going to affect home users as those will probably be prohibitively expensive, but enterprise might snatch it up - who knows.

[–] [email protected] 4 points 10 months ago (1 children)

Increasing the antenna availability increases available airtime in a given band, reducing the airtme 'load' of IoT and similar devices on the spectrum. This alone would be a dramatic improvement, but increasing the modulation by a factor of 4 should dramatically reduce airtime utilization for normal client loads, regardless of available upstream bandwidth, resulting in more airtime for everyone else and dramatically improving wifi performance in congested environments, assuming access points are designed with sufficient memory to allow for buffering frames in this manner.

Wifi7 should be as big an improvement as 11b to 11g, assuming the hardware vendors don't shit the bed on it.

[–] [email protected] 2 points 10 months ago

Thanks for expanding on this! Very helpful!