[ns] How to determine the link number for wireless networks?

[Mohit Tahiliani]

Hello Everyone,
 
I am able to calculate the number of drop packets through C++ code. Everything is working fine except that I cannot determine that the number of drop packets are related to which Link.
 
I have seven links and the number of drop packets on every link is different. I am getting different values but cannot identify that to which link this value belongs to.
 
Is there any way by which we can print the Link number (e.g.: Link 2 <-> 3) through C++ code??
 
Thank you so much
 
Sincerely,
Mohit P. Tahiliani