Having a problem confusing me. The frames transmitted from other clients are treated as noise or not for other clients on the same channel?
If not, does it mean on a crowded and busy channel the client can get good SNR when it is quite close to AP if no non-wifi interference but the channel utilization is bad.
Multiple AP's on the same channel would be considered as CCI, or Co-Channel Interference. However, up to some level, I would not consider it to be noise. Personally, I would consider BlueTooth signals to be noise if we are talking about Wi-Fi being the primary communication method..
The SNR or Signal To Noise Ratio could still be quite high, even if the channel is very busy - especially if the two devices are close together.
I've seen Wi-fi working just fine if Utilization was as high as 85%. It really breaks down into the applications running. For example are you trying to stream a video, have a phone conversation, or merely searching the web.
Make sense, thx for your reply, bro.
Speaking of 85 %:
In my many years of computer experience, I have seen just about everything fail when utilization gets as high as 85%.
It doesn't matter if we are talking about disk or memory utilization. channel throughput, or scheduling algorithms.
Once you get near 85%, even the best designed schemes seem to fail.