András Varga



Opensim Ltd.
Szölö köz 11.
1032 Budapest, Hungary
Phone: (36 20) 341-4809
Email: andras at

About Me ...

Andras Varga's Photo

I received my M.Sc. in electrical engineering and computer systems from the Technical University of Budapest in 1994. Between 1994 and 1998 I pursued PhD studies at the same university, but went to the industry before completing the PhD. Between 2003 and 2005, I spent altogether more than a year at CTIE, Monash University, Melbourne as a visiting research fellow, where I was performing research on parallel simulation of large telecommunication networks, and working towards the PhD degree. My field of interest is the simulation of telecommunication networks, and I am the architect and main developer of the widely used OMNeT++ network simulation software. Currently I work at OpenSim Ltd. which I founded for commercializing OMNeT++.

Email: andras at


  1. Varga, A. (2010), "OMNeT++". Chapter in the book "Modeling and Tools for Network Simulation", Wehrle, Klaus; Günes, Mesut; Gross, James (Eds.) Springer Verlag, 2010. ISBN: 978-3-642-12330-6
  2. Kozlovszky, M., Balaskó, A. and Varga, A. (2009), "Enabling OMNeT++-based simulations on Grid Systems", OMNeT++ 2009: Proceedings of the 2nd International Workshop on OMNeT++ (hosted by SIMUTools 2009).
  3. Varga, A. and Sekercioglu, Y. A. (2008), "Parallel Network Simulation with OMNeT++", Research, Development and Application on Information and Telecommunication Technology (ICT Journal), Volume E-1, Number 1 (5). pp.5--14. Special issue on Tools, Modelling Techniques and Analysis Aspects of Heterogeneous Networks
  4. Varga, A. and Hornig, R. (2008), "An overview of the OMNeT++ simulation environment", Simutools '08: Proceedings of the 1st international conference on Simulation tools and techniques for communications, networks and systems & workshops: 1--10.
  5. Sekercioglu, Y. A., Varga, A. and Egan, G. K. (2003), "Parallel simulation made easy with OMNeT++", ESS 2003: 15th European Simulation Symposium.
  6. Varga, A., Sekercioglu, Y. A. and Egan, G. K. (2003), "A practical efficiency criterion for the Null Message Algorithm", ESS 2003: 15th European Simulation Symposium.
  7. Wu, David, Wu, Eric, Lai, Johnny, Varga, A., Sekercioglu, Y. Ahmet and Egan, Gregory K. (2002), "Implementing MPI Based Portable Parallel Discrete Event Simulation Support in the OMNeT++ Framework", ESS 2002: 14th European Simulation Symposium.
  8. Varga, A. (2001), "The OMNeT++ Discrete Event Simulation System", Proceedings of the European Simulation Multiconference (ESM'2001).
  9. Varga, A. (1999), "Using the OMNeT++ discrete event simulation system in education", IEEE Transactions on Education, 42, 4: 11 pp..
  10. Varga, A. (1998), "Parameterized Topologies for Simulation Programs", WMC'98: Western Multiconference on Simulation, CNDS'98: Communication Networks and Distributed Systems.
  11. Varga, A. and Pongor, G. (1997), "Flexible Topology Description Language for Simulation Programs", Proceedings of the 9th European Simulation Symposium.
  12. Varga, A. and Fakhamzadeh, B. (1997), "The K-Split Algorithm for the PDF Approximation of Multi-Dimensional Empirical Distributions without Storing Observations", ESS'97: 9th European Simulation Symposium: 94--98.
  13. Varga, A. (1996), "Simulation in the design of VSAT networks", Journal on Communications (Híradástechnika), Nov 1996
  14. Varga, A. (1996), "Analysis and Design of VSAT Networks Through Simulation", 4th International Conference on Up-to-Date Satellite Communications, Budapest, 16-20 Sept 1996.
  15. K. Budai, A. Czifra, G. Dallos, P. Giese, D. Jobbágy, C. Szabó, L. Szabó, A. Varga (1995), "Traffic simulation and cost analysis system - Hungarian contribution to COST-226" COST-226 Conference, 10-12 May 1995.
  16. Lencse, G. and Varga, A. (1994), "Automatic Generation of Facial Expressions", research report, TU Delft, Aug. 1994.