how NS-2 simulates DQ ?

[SanjayVijayKumar]

Hi, I was trying to replicate and understand how you have used the NS-2 simulator for showing the potential of "Distributed queuing".
What I understood is you guys have used the NS-2 tool only for ALOHA simulation and python script for DQ simulation.
But I really interested to know is how are you proving that the DQ is better than aloha. I mean NS-2 tool is only simulating ALOHA not DQ, right?
sorry if its, not a valid question. I am new to the NS-2 simulator. So I am just trying to understand how I can use it to simulate DQ.