Hello,
I have a theory.
Let's assume that max 5G rate may be 1300Mb/s and 2.4 may be 216.7Mb/s.
In this case the real BW would be 650Mb/s and 108Mb/s respectively.
So the max BW what AP would require may be 758Mb/s when the clients are associated at the highest speed, regardless of the number of the clients.
Let's take a real word example, assuming Airtime fairness is enabled.
For simplicity, let's say all the clients transmit for 1 second in a round-robin fashion.
Case 1, mixed clients:
5Ghz:
Client 1 : 1300Mb/s associated rate - 650Mb is sent
Client 2 : 877Mb/s associated rate - 438Mb is sent
Client 3 : 780Mb/s associated rate - 390Mb is sent
Client 4 : 292Mb/s associated rate - 146Mb is sent
Average speed in 4 seconds is: 406Mb/s
2.4G
Client 5 : 216Mb/s associated rate - 108Mb is sent
Client 6 : 144Mb/s associated rate - 72Mb is sent
Client 7 : 72Mb/s associated rate - 36Mb is sent
Average speed in 4 seconds is: 72Mb/s
Total AP average BW: 478Mb/s
Case 2:
5Ghz:
Client 1 : 1300Mb/s associated rate - 650Mb is sent
Client 2 : 1300Mb/s associated rate - 650Mb is sent
Client 3 : 1300Mb/s associated rate - 650Mb is sent
Client 4 : 1300Mb/s associated rate - 650Mb is sent
AVG: 650Mb/s
2.4G
Client 5 : 216Mb/s associated rate - 108Mb is sent
Client 6 : 216Mb/s associated rate - 108Mb is sent
Client 7 : 216Mb/s associated rate - 108Mb is sent
AVG: 108 Mb/s
Total: 758Mb/s
Let's add few more slow clients:
5Ghz:
Client 1 : 1300Mb/s associated rate - 650Mb is sent
Client 2 : 877Mb/s associated rate - 438Mb is sent
Client 3 : 780Mb/s associated rate - 390Mb is sent
Client 4 : 292Mb/s associated rate - 146Mb is sent
Client 5 : 292Mb/s associated rate - 146Mb is sent
Client 6 : 292Mb/s associated rate - 146Mb is sent
Client 7 : 292Mb/s associated rate - 146Mb is sent
Average speed in 4 seconds is: 294Mb/s
So my conclusion is that slower clients slow down all the faster clients which are connected to the same AP Radio in a directly proportional fashion.
Am I correct?
