Vehicular ad hoc networks (VANETs) are a type of mobile ad hoc network (MANET) that utilize vehicles as nodes to form a self-organizing network. NetSim is a network simulation software that can be used to simulate VANETs.

To simulate VANETs in NetSim, you will need to use the LTE-VANET module. This module allows you to create a network scenario with vehicles, roadside units (RSUs), and infrastructure nodes. You can also define the mobility models of the vehicles, the propagation models of the radio channels, and the network protocols.

Here are the steps on how to simulate VANETs in NetSim:

To define the mobility models of the vehicles, you can use the SUMO (Simulation of Urban Mobility) software. SUMO is a traffic simulation software that can be used to generate traces of vehicle movements. These traces can then be imported into NetSim.

To define the propagation models of the radio channels, you can use a variety of models, such as the Friis free space model or the two-ray propagation model.

To define the network protocols, you can use a variety of protocols, such as the IEEE 802.11p protocol or the IEEE 1609.3 protocol.

Once you have defined all of the parameters of your simulation, you can run the simulation. NetSim will then simulate the network and generate output data. You can then analyze this data to study the performance of your network.

Here are some additional things to keep in mind when simulating VANETs in NetSim:

• The size of the simulation area will affect the accuracy of the results.
• The density of the vehicles will affect the performance of the network.
• The type of network protocol will affect the performance of the network.

You can look at these resources to start off:

1. Website: https://www.tetcos.com/vanets.html

2. User manual: https://www.tetcos.com/downloads/v14/VANETs.pdf

3. Q & A: https://support.tetcos.com/support/solutions/folders/14000118424

Some discussions on this topic which may be useful -

• https://www.researchgate.net/post/How-to-use-Netedit-and-Randomtripspy-when-interfacing-SUMO-with-NetSim
• https://www.researchgate.net/post/How_do_I_create_a_customized_project_for_VANET_in_NetSim
• https://www.researchgate.net/post/How_can_I_interface_NetSim_with_SUMO
• https://www.researchgate.net/post/How_can_I_couple_NetSim_with_SUMO_for_VANET_simulations
• https://www.researchgate.net/post/How_can_I_implement_an_intelligent_RSU-guided_traffic_signaling_system_for_my_project_using_NetSim_VANET_simulations