Dear Student,
As you have posted the same project with NS-2 and OPNET , since i have experince in OPNET also i can provide you the best results. Previously also i have worked with diffrent students of UK , australia , so could give you my previous experince or work as demo , so that you would believe and have a trust upon me to go ahead with the project implementation.
Regards
Kitesoftware
skype- kitesoftware