In my testing, 2x2 vs 4x4 with mu-mimo on the AP was almost unnoticeable
for home wifi (with the exception of a few clients that had 4x4
radios), and some papers/blogs I've seen showed mu-mimo does very little in
enterprise wifi as well.    Massive MIMO in mobile and fixed wireless is a
different story, big gains there.  We routinely got 2-3x mu-mimo gain
with 450M.  16x16 mu-mimo in wifi might be useful for something like a
stadium or other wide open space with dense clients, but not much else IMO.

On Wed, Oct 8, 2025 at 3:18 PM Rory Conaway <[email protected]> wrote:

> It means the AP is handling 16 streams at once, not the clients.  I've
> seen designs up to 64 with 32 2x2 streams.  Massive MIMO is a good strategy.
>
> Rory
>
> On Wed, Oct 8, 2025 at 12:38 PM castarritt <[email protected]> wrote:
>
>> I thought they dropped 16x and left it at 8x like wifi6.  Pretty much
>> every client device is still going to be 2x2, or maybe you could call it
>> 4x4 if running MLO in two bands.
>>
>> On Wed, Oct 8, 2025 at 2:08 PM Ken Hohhof <[email protected]> wrote:
>>
>>> In the list of supposed advantages of WiFi7 over WiFi6, I see 16 spatial
>>> streams vs 8.
>>>
>>>
>>>
>>> Can someone explain to me the mechanism for using 16 spatial streams in
>>> a typical WiFi environment?  I have a hard time wrapping my head around
>>> anything more than 2 using V/H or dual slant polarization.
>>>
>>>
>>>
>>> I was willing to believe that maybe you could get more (like maybe 4
>>> spatial streams) due to reflections off furniture and stuff, and that
>>> somehow signal processing could magically separate out the streams (even
>>> though I don’t understand how it does that).  But 8 or 16 just sounds like
>>> crazy talk.
>>>
>>>
>>>
>>> Maybe it’s like the rich people houses with 16 car garages, if I were
>>> rich people I would understand?
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