Hi you can use op net .

you can use NS3

but op-net is simple as compare to NS3

OR use omnet ++

https://www.youtube.com/watch?v=b_Gyxf-b0UI

Here is the list of possible simulators that you can use:

- NS-2

- NS-3

- OPNET

- OMNeT++

- GrooveNet

- SWANS++

- CAVENET

- TraNS

- NCTUns

List of Network Simulators:

• Ns2 (Network Simulator 2).
• Ns3 (Network Simulator 3).
• OPNET.
• OMNeT++.
• NetSim.
• REAL.
• QualNet.
• J-Sim.

OMNET++ and NS3 are most used in this area

OPNET or NetSim are the best to start with.

General recommendation is to avoid NS3 unless you have a few years time.