Thomas Zemen

Principal Scientist at AIT Austrian Institute of Technology


Thomas Zemen
Priv.-Doz. Dr. Thomas Zemen
Center for Digital Safety and Security

AIT Austrian Institute of Technology
Giefinggasse 4, 1210 Vienna, Austria
Mobile: +43 664 88390738
Email: thomas.zemen(at)ait.ac.at

Teaching

We are Hiring!

As Austria's largest research and technology organisation for applied research, we are dedicated to make substantial contributions to solving the major challenges of our time, climate change and digitalisation. With our open culture of innovation and our motivated, international teams, we are working to position AIT as Austria's leading research institution at the highest international level and to make a positive contribution to the economy and society.

In the Reliable Wireless Communication and Sensing research team, we develop advanced physical layer 6G technologies. We seek applicants that will perform applied research with European scientific and industrial partners and be involved in the successful execution of multiple European research projects.

Junior Scientist (PhD) Positions

Master Thesis Positions

Publications

see also Google Scholar Citations; AIT publication database

Journal Papers

Conference Papers

2026

2025

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2020

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2015

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2012

2011

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2003

1998

Patents

  • Method for Emulating a Radio Channel
    Markus Hofer, Thomas Zemen, WO 2018/085769 A1, Mai 2018; EP3539230, Dec. 2020.
  • Channel Estimation in an OFDM Transmission System
    Nicolai Czink, Thomas Zemen, Laura Bernadó, A. Molisch, EP2461530, June 2012.

Review Articles

Edited Publication

Book Chapters

  • V2V and V2X Communication
    Thomas Zemen and Anja Dakić, in Communication Technologies for Intelligent Transportation Systems: From Railways to UAVs and Beyond, Ed. S. Rizkalla and Adrian Kliks, Journal of Communications and Information Technology, 2025.
  • Vehicular channels
    Laura Bernadó, Nicolai Czink, Thomas Zemen, Alex Paier, Fredrik Tufvesson, Christoph F. Mecklenbräuker, and Andreas F. Molisch, in LTE Advanced and Beyond Wireless Networks: Channel Modeling and Propagation, Ed. G. de la Roche, A. Alayón, and B. Allen, John Wiley and Sons, 2012.
  • Wireless access in vehicular environments
    Thomas Zemen, Laura Bernadó, K. Sjöberg, and E. Uhlemann, in Pervasive Mobile & Ambient Wireless Communications, The COST Action 2100, Ed. Roberto Verdone, Springer 2012.
  • Multi-user MIMO receiver processing for time-varying channels
    Charlotte Dumard, J. Jalden, and Thomas Zemen, in Wireless Communications over Rapidly Time-Varying Channels, Eds. F. Hlawatsch and Gerald Matz, Academic Press, 2011.
  • Multiuser MIMO channel equalization
    Christoph F. Mecklenbräuker, Joachim Wehinger, Thomas Zemen, H. Artés, and F. Hlawatsch, in Smart Antennas---State of the Art, Eds. T. Kaiser, A. Bourdoux, H. Boche, J. R. Fonollosa, J. Bach Andersen, W. Utschick, Section 1.4, EURASIP Book Series on Signal Processing and Communications, New York (NY): Hindawi, 2006, pp. 53--76.

Theses

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Supervision of Master Thesis

  • M. N. Rafan, Master thesis, 6G broadband radio channel measurement system, University of Ferrara, jointly with G. Bellanca and Markus Hofer, July 2025.
  • S. Sandh, Master thesis, Ray tracing based 6G reflective intelligent surface modelling, TU Wien, Vienna, Austria, Dec. 2023.
  • I. D'Amante, Master thesis, Geometry based stochastic radio channel modelling for railway communications, TU Wien, Vienna, Austria, jointly with Markus Hofer, Dec. 2023.
  • C. Soliveri, Master thesis, Electronic beamforming for reliable UAV communication links, Université Côte d´ Azur, June 2023, jointly with J. Lanteri and David Löschenbrand.
  • Pascal Thiele, Master thesis, Supervised machine learning for pattern recognition of frequency hopping spread spectrum communication, Universität Wien, Vienna, Austria, 2022, jointly with Maria Leitner and Laura Bernadó.
  • Anja Dakić, Master thesis, Delay bounding protocols for vehicular scenarios using a SDR testbed, University of Belgrade, Belgrade, Serbia, 2019.
  • J. Skorepa, Master thesis, Frequency-hopping parameter estimation for unmanned aerial vehicle radio links, Prague University, Prague, Czech Republik, 2019, jointly with Florian Kaltenberger.
  • A. F. García Albarracín, Master thesis, Wireless wave propagation modeling in city street canyons, Lund University, Lund, Sweden, 2016, jointly with Fredrik Tufvesson.
  • A. Dichev, Master thesis, Vehicular channel sounding with a software-defined-radio platform, EURECOM, Sophia Antipolis, France, 2016, jointly with Florian Kaltenberger and O. Renaudin.
  • Xuhong Li, Master thesis, Speedup Ray Tracing (RT) Simulation and New Algorithm to Generate Diffuse Scattering Tiles, Lund University, Lund, Sweden, 2013, jointly with Mingming Gan and Fredrik Tufvesson.
  • T. An, Master thesis, Feasibility study of interference alignment in time-variant and frequency-selective channels, Lund University, Lund, Sweden, 2011, jointly with Roland Tresch and Fredrik Tufvesson.
  • Anna Roma, Characterization of vehicle-to-vehicle channels in various scenarios, Master Thesis, Universitat Politècnica de Catalunya, Barcelona, Spain, 2010, jointly with Laura Bernadó and Christoph Mecklenbräuker.
  • Paolo Castiglione, Cooperative communications over time-variant channels, Master Thesis, Politecnico di Milano, Milano, Italy, 2007, jointly with Monica Nicoli.
  • Haran Somasegaran, Channel estimation and prediction in UMTS LTE, Master Thesis, Aalborg University, Aalborg, Denmark, 2006, jointly with Bernard H. Fleury.

Supervision of Doctoral Thesis

  • Milica Djordjevic, 6G radio channel modelling, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, ongoing.
  • Cédric Soliveri, 6G cell free systems for vehicular users, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, ongoing.
  • Hamed Radpour, Reconfigurable intelligent surfaces for reliable wireless 6G communication, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, ongoing.
  • Anja Dakić, Reliability testing of wireless vehicular communication, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, October 2025.
  • Aina Val Martí, Design and evaluation of advanced photonic radio heads for next-generation wireless networks, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, jointly with Bernhard Schrenk, November 2024.
  • David Löschenbrand, Widely distributed massive MIMO communication systems for high mobility users, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, March 2024.
  • Stefan Zelenbaba, Digital twin for reliable wireless communications, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, October 2022.
  • Markus Hofer, Real-time geometry based channel emulation and estimation, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, November 2019.
  • Zhinan Xu, User cooperation in wireless time-variant channels, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, October 2016.
  • Kim Mahler, Wideband vehicular radio channel modelling, Doctoral Thesis, Technische Universität Berlin, Berlin, Germany, jointly with Giuseppe Caire and Fredrik Tufvesson, Technical University Berlin, Berlin, Germany, October 2016.
  • Mingming Gan, Accurate and low-complexity ray tracing channel modeling, Doctoral Thesis, Technische Universität Wien, Vienna, Austria, November 2015.
  • Paolo Castiglione, Cooperative and energy-neutral protocols for energy-limited wireless sensor networks, Doctoral Thesis, Vienna University of Technology, Vienna, Austria, 2012, jointly with Gerald Matz and Monica Nicoli.
  • Laura Bernadó, Non-stationarity in vehicular wireless channels, Doctoral Thesis, Vienna University of Technology, Vienna, Austria, 2012, jointly with Christoph F. Mecklenbräuker.
  • Roland Tresch, Node coordination and cooperation in multiuser wireless communications, Doctoral Thesis, Vienna University of Technology, Vienna, Austria, 2011, jointly with M. Guillaud and Gerald Matz.
  • Charlotte Dumard, Low-complexity receivers for a multi-user OFDM system in time-varying MIMO channels, Doctoral Thesis, Vienna University of Technology, Vienna, Austria, 2009, jointly with Gerald Matz.
  • Florian Kaltenberger, Low-complexity real-time signal processing for wireless communications, Doctoral Thesis, Vienna University of Technology, Vienna, Austria, 2007, jointly with Christoph Ueberhuber.
  • Nicolai Czink, The random-cluster model: A stochastic MIMO channel model for broadband communication systems of the 3rd generation and beyond, Doctoral Thesis, Vienna University of Technology, Vienna, Austria 2007, jointly with E. Bonek.

Participation in Thesis Committees

  • Allan Wainaina Mbugua, Channel sounding, characterization and emulation for advanced radio systems, Doctoral Thesis, Aalborg University, Aalborg, Denmark, April 2023, examiner.
  • Chouaib Bencheikh Lehocine, Robust low-cost multiple antenna processing for V2V communication, Doctoral Thesis, Chalmers University of Technology, Gothenburg, Sweden, November 2022, faculty opponent.
  • Sumit Kumar, Architecture for simultaneous multi-standard software defined radio receiver, Doctoral Thesis, Sorbonne Universität, EURECOM, Sophia Antipolis, France, April 2019, examiner.
  • Bernhard Auinger, On the performance testing of MIMO enabled wireless mobile user devices, Doctoral Thesis, Technische Universität Graz, Graz, Austria, June 2015, examiner.