[ns] Contention window in NS2

Hello Can anybody help me to find the contention window of a node in ad hoc network simulated in NS2? I can only find tcp's one. I want it to plot the Jain's fairness index of an ad hoc network. Help me please. -- -- AKO Nissa -- Elève Ingénieur à l'Ecole Polytechnique

[ns] Performance of a MAC protocol

Hello. How can I plot an instantaneous throughput, an average throughput for different network nodes and Jain's fairness index of an ad hoc network to evaluate the performance of MAC protocol. I have to use Perl to do it, but I don't know how. Help me please -- -- AKO Nissa