Event Scheduling between multiple nodes

[Nwa Obi]

Hi,

I have a problem with sending tcp packets between multiple nodes. For example a multiple transmitter nodes wants to send tcp packets to their respective connected mutiple nodes  and the transmission is scheduled within given time slots. I would be grateful if someone could give me tips on how it can be done or direct me to existing examples in NS3. I have searched  but not yet found what I want. 

Cheers