Do we have any good example showing simulation of wlan 802.11 association and disassociation with beacon frame flow.

Do we have any good example showing simulation of wlan 802.11 association and disassociation with beacon frame flow. I am trying to simulate a wireless network with co-ordinator and some devices near by where I wanted to show the simulation of association and disassociation of the devices into the wireless network. If anybody have good example please share.