Please check the following links:

https://github.com/cqu-bdsc/NS3-example

https://github.com/eclipse/sumo

NS3 package comes along with tutorial codes you can take a look. Also there are codes on github

You can check this URL : https://searchcode.com/

Qusay Medhat Salih

I am new to these network simulators (SUMO and NS3), but need to use the simulators for a project I am currently working on, I want to have three types of communication (V2V, V2R, R2R) the network that I want to build contains cluster withe CH & CM and RSU. I am totally a beginner at these simulators, therefore, I will appreciate answers for beginners. And video tutorials will be greatly appreciated. Thanks

Raghu Ramamoorthy

I am new to these network simulators (SUMO and NS3), but need to use the simulators for a project I am currently working on, I want to have three types of communication (V2V, V2R, R2R) the network that I want to build contains cluster withe CH & CM and RSU. I am totally a beginner at these simulators, therefore, I will appreciate answers for beginners. And video tutorials will be greatly appreciated. Thanks

Muhammad Saleh Bute Qasem Abu Al-Haija

I am new to these network simulators (SUMO and NS3), but need to use the simulators for a project I am currently working on, I want to have three types of communication (V2V, V2R, R2R) the network that I want to build contains cluster withe CH & CM and RSU. I am totally a beginner at these simulators, therefore, I will appreciate answers for beginners. And video tutorials will be greatly appreciated. Thanks

There are VANET codes involving NetSim and SUMO in https://tetcos.com/file-exchange.html and explained in https://tetcos.com/vanets.html. You might be able to adapt them for NS-3.

Hiba Tamimi

It would be best if you are very well in c++ programming dut to NS-3 needs to write the code in c++. Then, you can check the examples in c++, and try to understand the code. Then, run the examples and draw the results to be familiar with the program. You can read the book

"Wireless Network Simulation A Guide using Ad Hoc Networks and the ns-3 Simulator" for more examples. You need at least six months to be able to work on the ns-3. Also, there are a lot of videos on youtube.

NS-3 is not at all user-friendly. It’s better to go for tools like MATLAB or NetSim. They are easy to use, have good documentation/videos plus you get tech support. Like Qusay Medhat Salih says it will take 6 m to understand the basics. You have to learn everything on your own since there is no support.