[Make-wifi-fast] I used to dream of a single wifi cpu, memory, and I/O

[Bob McMahon]

That you can build these networks to operate well says more about you than
the guys supplying parts & equipment. Impressive real world knowledge for
sure.

Bob

On Mon, Jul 10, 2023, 4:34 PM David Lang <david at lang.hm> wrote:

> First off, I am a Huge proponent of getting the RF layout clean before
> anything
> else. Directional signals sound like a fantastic idea, until you realize
> that
> the stations you are talking to are not using directional antennas, then
> the
> value drops significantly (under these conditions, directional antennas
> create
> more hidden transmitters)
>
> When I setup conference wifi, I take advantage of the fact that some walls
> block
> the wifi signals, so I can put the APs closer to the walls that block them
> without worrying about what's on the other side. I also place them on the
> ground
> (under the chairs) as the bodies of the attendees absorb the signal and
> let me
> use more APs in a room than I could get away with otherwise. I also stick
> to the
> standard 10MHz channels, as that lets me re-use a channel with more
> separation
> between APs using the same channel
>
> And yes, I agree that it makes no sense to run an AP at a higher power
> level
> than the stations talking to it, so I turn the power way down.
>
> I haven't knowingly run into the problem you describe of clients
> enumerating all
> available APs, but I may not have setup a high enough density of APs to
> run into
> the problem, can you give more info on that?
>
> > There is no reason to send energy more than 29' as that's the distance
> per
> > fire code that a human has to be from a working smoke detector. and in
> many
> > cities, one can't sell a house without a hard-wired, battery backed up,
> and
> > inter connected smoke detectors.
>
> As someone who has been looking at building a house, it's not that simple.
> Hard
> wired smoke detectors are only needed in some rooms, not in all, and only
> if the
> house is above a minimum size. Then you need different amounts of power to
> get
> through walls depending on how they are built.
>
> When I setup wifi in a conference center exibit hall that's 25,000 sq ft,
> I
> don't believe that there are 80 smoke detectors in that one room (not to
> mention
> the fact that the cealing is more than 29' away, even if I'm standing
> directly
> under it)
>
> Then there's the fact that not everything is inside.
>
> David Lang
>

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