I will understand no reply as no support for infrastructure WLANs in NS2.
Moreover, I have found this text in google:

Bugs in NS2
Simulators always need assumtions to make their calculations viable. 
However, when some assumptions are crucial in your simulations, you must 
be careful. For example, there is no scanning for WLAN 
(Discovery/Select/Authentication/Association) in NS-2, mobile nodes are 
associated with their BS automatically if they have the same pre-defined 
domain. If you want to study the overhead of scanning, you should make 
your extension.

...but also I have found this in a IEEE paper:

Abstract—This paper presents an analytic model for computing the 
capacity of an infrastructure IEEE 802.11 WLAN enhanced with the support 
of the bidirectional MAC
frame aggregation...Simulations with ns2 are performed and the 
simulation results show that ...

So, it seems someone has performed some work in this area.
Please, Does someone know about the existence of works in this area?
Thank you!

David Fuste wrote:
> Hi all,
> I just want to know if there is already support for simulating 
> infrastructure WLANs in NS2 or nowadays, NS2 only supports ad-hoc WLANs.
> All wireless examples in the NS2 package are based in ad-hoc WLANs, even 
> in the wired-cum-wireless scenario, where communication between wireless 
> nodes takes place directly between them, using an ad-hoc routing 
> protocol (AODV,...) instead of using the base station or access point as 
> intermediate node.
> Moreover, these wireless nodes don't simulate assosiation/authentication 
> messages to the base station  as is defined in the IEEE 802.11 standard. 
> Beacons,...
>
> I think it is a big drawback if NS2 doesn't have support to 
> infrastructure WLANs. And before start to "implement" it in a simple 
> version, I want to know if there is already some work in this area.
> Thank you very much!
>   

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