  Integrating Unmanned Aerial Vehicles (UAVs) into future Intelligent
Transportation Systems (ITSs) allows to exploit their unique mobility
potentials for improving the performance of services such as near-field parcel
delivery, dynamic network provisioning, and aerial sensing. In order to provide
a controllable environment for the methodological performance analysis,
simulation frameworks need to support ground- and aerial-based mobility as well
as the involved communication technologies. In this paper, we present the open
source Lightweight ICT-centric Mobility Simulation (LIMoSim) framework for
simulating hybrid vehicular networks within Network Simulator 3 (ns-3). LIMoSim
implements a shared codebase coupling approach which integrates all required
components in a single simulation process. The low-level mobility behaviors
rely on well-known analytical models. Different case studies discussing
cutting-edge communication technologies such as Cellular Vehicle-to-Everything
(C-V2X) and millimeter Wave (mmWave) are presented in order to illustrate how
the proposed framework can be integrated into ns-3-based network simulation
setups.
