SNR, noise or interference?

rhienwei2010 — Mon, 05 Jul 2021 12:23:31 GMT

Hello experts

In Cisco documents it said, if the RF signal is recognizable 802.11 signal it will be taken as interference, it is not recognizable 802.11 signal is will be counted as noise. So, my question is, will a neighbor company's AP signal bring down SNR of my wifi clients, if it is on the same channel as my wifi.

From my understanding, when I check a wifi client status on a WLC, the SNR reading should not be related to co-channel interference from my neighor's APs. Means, I can have clients with high SNR, but still suffer bad co-channel interference from other companies' APs. Is this correct?

Also, 10% packet retry rate in a small open space office, is it considered as bad or normal?

Thanks a lot.

Hi,

hajia — Thu, 14 Jul 2016 09:15:06 GMT

Hi,

Even the interference is recognizable, it still counts as NOISE.

There is no such thing as Interference level, just Noise Level.

topic SNR, noise or interference? in Wireless

SNR, noise or interference?

Hi,