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Would be great if someone clarifies this doubt.
Lets assume two Wireless Access Points AP1 & AP2 with these conditions
1. both in the same 802.11 standard
2. same channel
3. using different SSIDs
(just like in adjacent apartment houses).
In this case, do these two Access points (and the clients associated to them) coordinate via CSMA/CA ? ie., if one of the AP's or a client station is about to transmit, does it wait & observe the other AP's & its clients' transmission before sending the frame in air ?
Also, do the clients associated with these different APs coordinate via CSMA/CA ?
3This answer is wrong on so many levels, I do not even know where to start. So, starting from the beginning: an AP will not see another AP as interference if they are near enough, since it can read the packet headers (and has to, else it cannot know they are for the other AP!). "They figure it out" is hopelessly vague. I do not believe anyone uses the frequency-hopping from the original 802.11 standard anymore. And the MAC layer is shared between all the stations (AP or not), after all it is its purpose to negotiate access to the media (MAC = Media Access Control). – CesarB – 2010-03-21T20:22:12.283