91–100 of 235 posts
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It's been the same throughout history. Invent a tool...use it to kill.
I wouldn't be as negative. Frequently we create the tool in order to kill with it. After that we also use to tool to create. We're equally capable of good and evil and yes, we are frequently good, too.
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https://www.rtinsights.com/li-fi-a-new-wireless-alternative-... > Li-Fi connections are broadcast over the air through a light-emitting diodes (LED) broadcaster and support rates up to 100Gbit/s ... Li-Fi can also serve to identify an object’s indoor position more accurately than Wi-Fi or GPS used today (less than 2cm and less than 3 degrees of orientation while it is providing real-time localization (less than 34ms)…
There's potential for visible-light networking but the Li-Fi people in particular are complete garbage. They claim visible light travels faster than radio waves and say Li-Fi is a hundred times faster than wi-fi but their thousand dollar router can only do 100Mb/s. They also rip off the Wi-Fi Alliance logo.
I'm surprised that there's not a single comment here about 802.11ay which is also 60GHz. Each channel on that standard can do something like 40Gbps, which is nuts. From Wikipedia[0]: > The link-rate per stream is 44 Gbit/s, with four streams this goes up to 176 Gbit/s. Yes, it can't penetrate walls, but is huge for point to point communication. Think VR headset bandwidth, file transfers between devices, wireless back…
There seems to be a lot of FUD about this. Make no mistake, the malicious and privacy invasive applications are already being used; they just don't follow a IEEE spec and aren't associated with WiFi directly. If a maliciously controlled router wants to track you it already can because your phone, smart watch, and laptop already broadcast themselves. This technology may not seem useful to the purpose of WiFi on it's f…
I want my Wi-Fi to deliver me fast internet access, not track my position. Have a feeling this will be used for il-intent and monetized by future routers
But tracking your position allows it to give you fast internet access.
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Since 802.11bf makes most existing walls transparent, it should lead to innovation in wall construction. It may also increase market demand for light-based wireless networking (Li-Fi) which has the advantage of being stopped by existing walls.
People will need indoor cell repeaters to undo what's done by their shielded walls.
The only real practical example is fall detection, what's the real purpose of this?
(2021) privacy comments on Wi-Fi 7 standards work for 802.11bf, https://arxiv.org/pdf/2103.14918.pdf > it has been shown that SENS-based classifiers can infer privacy-critical information such as keyboard typing, gesture recognition and activity tracking ... since Wi-Fi signals can penetrate hard objects and can be used without the presence of light, end-users may not even realize they are being tracked ... individua…
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+1 As many APs today are already cloud dependent I can totally see where all the sensed data will be stored and out of the owners control.
I’m skeptical there are customers really asking for this.