[Ns-developers] management of wifi association in infrastructure mode

Mathieu Lacage mathieu.lacage at sophia.inria.fr
Wed Nov 26 11:20:23 PST 2008


On Wed, 2008-11-26 at 15:55 +0000, Gustavo Carneiro wrote:

> 3) In the AP, if it doesn't receive an ACK for the
> ASSOCIATION_RESPONSE, re-send the ASSOCIATION_RESPONSE when the ACK
> timer expires or the ACK is received with error; repeat this until 7
> times or until the ACK is received.
> 
> I think this is the most logical solution.  We know that management
> frames have to follow the same basic DCF transmission rules as normal
> data frames.  And for both management and data frames it makes perfect
> sense to treat a unreadable ACK as a missing ACK and trigger a
> retransmission accordingly.

We already do this but this does not solve the problem: we can still
have the AP think that the frame was not sent successfully and thus
decide that the STA is not associated and have the STA receive the
ASSOCIATION_RESPONSE correctly and think that it is associated.

Mathieu



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