How to set up the field of view(FoV) of a visual sensor ( camera node ) in NS-3 simulator?

I am not sure if this can help you, but if you only want to simulate the traffic of data in a wireless (radio) network, you only need to simulate the size of the packets, if you want to transmit the information it can be included in the packet like fields (aperture angle ....) you don't really need to simualte how a real camera works if you want to simulate how the sensors can communicate

Thank you sir Alfonso for your response. In fact, i don't want to simulate the traffic of data in a wireless (radio) network, but i want to detect if an object is whithin the field of view of camera or not, so for that i resolved the problem by creating a new module in ns3.

Thank you again for your answer.

Visual node module: An open‐source extension to the ns‐3 network simulator