  Reliable and efficient communication is one of the key requirements for the
deployment of self-driving cars. Consequently, researchers and developers
require efficient and precise tools for the parallel development of vehicular
mobility and communication. Although current state-of-the-art approaches allow
the coupled simulation of those two components, they are making use of multiple
specialized simulators that are synchronized using interprocess communication,
resulting in highly complex simulation setups. Furthermore, the compatibility
of those simulators requires constant attention as they are developed
independently. In this paper, we present a lightweight and integrated approach
for simulating vehicular mobility directly in Objective Modular Network Testbed
in C++ (OMNeT++) and INET without the need for external tools or Interprocess
Communication (IPC). The proposed framework Lightweight ICT-centric Mobility
Simulation (LIMoSim) is available as Open Source software and can easily be
combined with other third-party extension frameworks for providing vehicular
mobility based on well-known microscopical models. In contrast to existing
approaches, the amount of necessary preprocessing steps for simulation setups
is significantly reduced. The capabilities of LIMoSim are demonstrated by a
proof of concept evaluation in combination with the Long Term Evolution (LTE)
simulation framework SimuLTE.
