which framework for standard 802.11

[Novice]

Hello,

I'm new to omnet and the related frameworks. I need to work with the 802.11 standard. Nevertheless I don't know which one exactly to use, I mean from what i saw there is a 802.11 example in MiXiM, Inet, amd InetManet. Are they the same, what are the differences?

Thanks for your help.