OMNeT++ Community Summit 2021

Hackathon and Virtual Summit – September 8-10


Because of the changing world, the eight OMNeT++ Community Summit will be held virtually from Wednesday to Friday, September 8-10, 2021.

OMNeT++ is a public-source, component-based, modular and open-architecture simulation environment with strong GUI support and an embeddable simulation kernel. It is designed to simulate discrete event systems, with the simulation of communication networks as one of its primary application areas.

In continuation of the history of the International Workshop on OMNeT++ and seven very successful editions of its reincarnation, the OMNeT++ Community Summit, we continue to hold a yearly open meeting for all OMNeT++ community members with less costs and more interaction possibilities. The Community Summit provides a forum for tutorials, discussion sessions and presentations on recent developments and novel ideas in the area of simulation and modeling, with a focus on the OMNeT++ simulation environment.

The first seven Summits in Hamburg, Zurich, Brno, Bremen, Pisa, Hamburg and a virtual one were huge successes with lively discussions, keynotes, tutorials, panels, presentations, and demonstrations of ongoing and finalized research covering many aspects of OMNeT++-related research.

OMNeT Community Summit 2021


The OMNeT++ Community Summit is an open meeting with time and space for tutorials, discussions, coding sessions as well as presentations on recent developments and novel ideas in the broad area of modeling and simulation, with a focus on the OMNeT++ simulation framework. The OMNeT++ Community Summit unites users, developers, and researchers to discuss applications, developments, and ideas on the topics of integrating simulation models, coupling different simulation tools and providing more accurate and more efficient modeling approaches and simulation models.

To facilitate the interaction among participants, the summit employs a highly interactive presentation format called ConversTation, which provides much more feedback and useful discussion time than traditional talks. More information will be provided to presenters and audience at a due time.

Following the success of previous editions, the 2021 Community Summit will include a hackathon event. This provides the chance for developers of simulation models and frameworks to consult OMNeT++ core developers and fellow developers, to improve the quality and interoperability of models and frameworks.

Scientific contributions will be reviewed by the technical program committee and (if accepted and presented at the summit) will be included in the proceedings, which will be published in arXiv. The submission copyright will be retained by the authors.

Submission and Participation:

  • Scientific contributions (up to 8 pages) are full research papers that describe ongoing work or finalized results. Full papers that are reviewed and accepted by the TPC and presented at the summit will appear in the summit proceedings that are published in arXiv.
  • Short abstracts (up to 3 pages) provide overviews of a proposed presentation or demonstration. Authors may find this format suitable for design proposals, for preliminary or more narrowly focused work, for case studies, or to highlight OMNeT++-related results in work that has been published elsewhere. Short abstracts will be invited as either a presentation, as a demonstration, or a poster and will be published on the summit website
  • Hackathon proposal abstracts (up to 1 page) propose a topic for a hackathon. This can be the optimization of an ongoing OMNeT++ project, porting of frameworks to the newest OMNeT++ and INET versions, and many more. They should be submitted via e-mail to the organizers ([email protected]). Specific “call for hackathons” including detailed instructions will be distributed separately and made available on the summit website.
  • Proposals for tutorials, demonstrations, coding sessions, discussion panels, and other interactive community activities can be submitted via e-mail to the organizers ([email protected])

All submissions should be of interest to the OMNeT++ community. We welcome case studies that employ OMNeT++ in the evaluation of systems as well as contributions addressing general questions of OMNeT++-based simulations. For model-centric submissions, we encourage the author(s) to publicize source code at the time of submission. Proposals for individual contributions will be invited depending on the submission type and based on the expected interest for the OMNeT++ community. Contributions should be prepared according to the submission guidelines provided in arXiv. Submission deadline: July 15, 2021.

Continuing the tradition of previous years, another hackathon will be co-located with this year's OMNeT++ Community Summit. The hackathon gives developers of simulation models and simulation frameworks the chance to consult and team-up with the OMNeT++ core developer team and fellow framework developers, in order to improve the quality and interoperability of simulation models and frameworks and to work on topics proposed by the developers themselves. Participants and topics will be selected based on prior written project proposals. Hackathon proposal submission deadline: August 08, 2021.

Scientific contributions and short abstracts should be prepared according to the EasyChair template:

If you want to use Overleaf, you can clone the template from here.

Topics of interest include, but are not limited to:

  • Design, evaluation, and validation of simulation models
  • Simulation credibility and validation
  • Modeling techniques, incl. stochastic and hybrid modeling
  • Comparison/integration with other simulation/emulation tools
  • Parallel simulation and simulation control
  • Integration of hardware-specific code
  • Simulative approaches to performance evaluation
  • Cross-layer protocol design methodologies
  • Use of discrete event simulation in other domains
  • Result interpretation and analysis
  • Simulation in the loop
  • Industrial applications and use cases
  • Experiences on contributions to international standards
    (e.g., IEEE and IETF) and / or patents

Exemplary topics for hackathon projects:

  • porting an existing codebase to recent versions of OMNeT++ and INET
  • introducing regression tests (i.e., fingerprint testing)
  • add "project features" support if needed (for large projects)
  • add visualization (e.g., using figures, layers, 3D visualization)
  • discuss the practice of simulation result collection and analysis
  • discussion on interoperability and OMNeT++ development roadmaps
  • making better use of INET 4.x features
  • hands-on problem solving (e.g., improving scalability)
  • set up continuous integration (e.g. Travis)
  • improving certain aspects of existing simulation models
  • improving interoperability with other frameworks


This year the summit will take place on Discord. Registration deadline is Tuesday, September 7, midnight (GMT+2). (Further info will be published in August.)


The OMNeT++ Summit intends to be a lively event with a lot of discussions. A wide range of presentations and interactive sessions regarding specific topics will be held. There will be enough time to discuss about the different parts of OMNeT++ and related simulation and modeling questions. The event will be fully virtual. All times are Central European Summer Time (GMT+2).

Schedule (will be announced in August)


Founding Chair
  • Andras Varga (OpenSim Kft.)
Hackathon Organizer
  • Asanga Udugama (University of Bremen)

Virtual Summit Organizers
  • Rudolf Hornig (OpenSim Kft.)
Technical Program Organizers
  • Marcel Marek (Brno University of Technology)
  • Giovanni Nardini (University of Pisa)
  • Vladimir Vesely (Brno University of Technology)

In case you want to contact the organizers, feel free to write an e-mail to: [email protected].