[ns] Accuracy in 802.11

[Maurizio Bellemo]

Hi all,

i have a question about 802.11 and ns-2 MobileNode. Which is the accuracy of
the distance between two mobile nodes in 802.11??

That is, having three nodes in a mobile ad hoc networks (A, B, C) and be A
the one from which the distance is calculated. Which is the minimum distance
between B and C that let them be perceived at different distances from A
point of view???

I'm sorry if my question is bad, any suggestion will be welcomed

Thks
Maurizio