In any moderately dense city environment, apartment complexes, or high traffic areas you can absolutely feel the effects of a lack of frequencies.
In American suburbia it might not matter much, but it's definitely an issue for the rest of us
In American suburbia it might not matter much, but it's definitely an issue for the rest of us
Out of the box most consumer WiFi routers will be configured for high power and most consumers won't even know that it is something they can change. Even if someone does know about it lowering it will probably make things worse for them unless their neighbors also lower their power.
Maybe consumer WiFi routers should also include some kind of long range low bandwidth communication method, such as LoRa, to find and communicate with surrounding routers to build a map of the routers in a general area (not necessarily a spatial map [1]) and then agree on power levels and channel assignments to avoid interfering.
[1] it would be a map of how they relate by WiFi signal strength rather than how they relate in space. So a two routers that are a couple meters apart but on opposite sides of a wall that nearly completely blocks WiFi radio frequencies would be far apart on the radio map despite being very close together spatially.
I have one bedroom apartment and the was unstable wifi in one half of it due to L-shaped reinforced concrete wall near the router. Cannot move it due to optic fiber input. To solve the issue I installed second router to have a wifi mesh.
Ding ding ding! The incentives are all wrong.
Plus, if more SNR is available, you can modulate more bits per unit time, then clear the air sooner.