NetSim comes with Random way point, Random Walk and group mobility models. 

For user-defined mobility users can input their own mobility model using FILE_BASED_MOBILITY (mobility.txt file) as explained in the section 8.2.4 of NetSim v10.2 User Manual.

File Based Mobility is not directly available as a mobility model for the Sensor nodes. To get this option for Sensor nodes  

  • Open the folder <NetSim_Install_Directory>/Docs/xml. 
  • Rename the existing Property.xml as say Property-original.xml for backup purposes. 
  • Copy/paste the attached Property.xml file

After doing this, upon reopening NetSim, you will get an additional mobility model - FILE_BASED_MOBILITY under the list of Mobility Models in the sensor general properties.