When APs are densely deployed, the signal strengths of different APs received by STAs are slightly different. In this case, STAs may be associated with other APs instead of the expected APs. What is the specific reason?
Here's the answer.
The reason is that the interval between sending Beacon frames is long. A STA obtains peripheral wireless network information in either of the following ways:
Passive scan: A STA listens on the Beacon frames sent by APs to obtain wireless network information.
Active scan: A STA actively sends a Probe Request frame and receives Probe Response frames to obtain wireless signals.
A STA can actively and passively scan wireless networks. When a STA passively scans wireless networks and the AP density is high, the STA can receive Beacon frames from another AP, not the nearest AP and perform association.
Therefore, APs must be properly deployed during network deployment.
