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AUBE '17 / SUPDET 2017
ICOF 2016

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Elektrotechnik
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Ingenieurwissenschaften
Universität Duisburg-Essen


Lars Häring

Stand: 24.05.2016
Universität Duisburg-Essen, Campus Duisburg

Name

Dr.-Ing. Lars Häring
Akademischer Oberrat

Adresse / Address

Universität Duisburg-Essen
Fakultät für Ingenieurwissenschaften
Fachgebiet Nachrichtentechnische Systeme, NTS
Bismarckstr. 81
47057 Duisburg

Telefon, Fax, Mail

Telefon: +49 (0) 203 379 3366
Fax: +49 (0) 203 379 2902
Email: haering@nts.uni-duisburg-essen.de

Lehre / Lectures

  • Organization of lecture courses, labs and examinations
  • Lectures
    • OFDM Transmission Techniques
  • External Lectureships
    • Signale und Systeme (Gottfried Wilhelm Leibniz Universität Hannover, WS 08/09)
  • Exercises
    • Communications 1 / Nachrichtentechnische Systeme 1 / Theorie linearer Systeme
    • Communications 2 / Nachrichtentechnische Systeme 2 / Theorie statistischer Signale
    • Communications 3 / Nachrichtentechnische Systeme 3 / Übertragungstechnik
    • Coding Theory / Codierungstheorie
    • Radio Propagation Channels / Wellenausbreitung und Funkkanäle
    • Signals and Systems
    • Additional Seminar in Theorie linearer Systeme
    • Additional Seminar in Theorie statistischer Signale
  • Labs and Seminars
    • Theorie linearer Systeme
    • Nachrichtentechnisches Praktikum
    • Computergestützte Ingenieurmathematik
    • Matlab for Communications
  • Mentoring of bachelor and master theses

Forschungsgebiete / Research Interests

  • Synchronization in Multiuser OFDM Systems
  • Filterbank Multicarrier Systems
  • MIMO Systems
  • Adaptive Transmission Techniques
  • Modulation Classification in Wireless Communication Systems

Auszeichnungen / Prizes

  • "Preise an Studierende 2001" for the best diploma thesis of the faculty electrical engineering at Ruhr-Universität Bochum
  • Price of Universität Duisburg-Essen for PhD theses with "summa cum laude" in 2007
  • Price for the best PhD thesis of the faculty engineering sciences at Universität Duisburg-Essen in 2007
  • "Innovationspreis Ingenieurwissenschaften 2007" of "Sparkasse am Niederrhein" for the best PhD thesis
  • Best paper award for contribution "Adaptive OQAM-OFDM transmission with MAP-based modulation classification in TDD systems" at European Wireless Conference 2016 (EW16)

Veröffentlichungen / Publications

Authored:
  • L. Haering:
    Adaptive OQAM-OFDM transmission with MAP-based modulation classification in TDD systems
    in Proc. of the European Wireless Conference 2016 (EW16), Oulu, Finland, May 2016, best paper award.
     
  • L. Haering, C. Kisters:
    Signaling-assisted MAP-based modulation classification in adaptive MIMO OFDM systems
    in Proc. of the IEEE Vehicular Technology Conference Fall 2014, Vancouver, Sept. 2014.
     
  • L. Haering, C. Kisters:
    Influence of imperfect reciprocity on MAP-based automatic modulation classification for adaptive OFDM systems in TDD mode
    in Proc. of the 18th International OFDM-Workshop(InOWo), Duisburg, Aug. 2014.
     
  • L. Haering, C. Kisters:
    Constraint-based adaptive OFDM transmission with signaling-assisted modulation classification
    in Proc. of the 47th Annual Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, USA, Nov. 2013.
     
  • L. Haering, C. Kisters:
    Joint optimization of bit loading and modulation classification in wireless OFDM systems
    in Proc. of the 9th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob 2013), Lyon, France, Oct. 2013.
     
  • L. Haering, C. Kisters:
    Signalling-assisted modulation classification in wireless OFDM systems with adaptive modulation and coding
    in Proc. of the IEEE International Conference on Communications (ICC13), Budapest, Hungary, June 2013.
     
  • L. Haering, C. Kisters:
    MAP-based automatic modulation classification for wireless adaptive OFDM systems
    in Proc. of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vancouver, USA, May 2013.
     
  • L. Haering, C. Kisters:
    Performance comparison of adaptive modulation and coding in OFDM systems using signalling and automatic modulation classification
    in Proc. of the 17th International OFDM-Workshop 2012, Essen Germany, Aug. 2012.
     
  • L. Haering
    Automatic Modulation Classification for Adaptive Wireless OFDM Systems,
    Book chapter in "Wireless Communications" pp. 381-402, ISBN 978-953-51-0189-5, edited by Ali Eksim, Intech, Croatia, March 2012

  • L. Haering, Y. Chen, and A. Czylwik:
    Utilizing Side Information in Modulation Classification for Wireless OFDM Systems with Adaptive Modulation,
    in Proc. of the IEEE Vehicular Technology Conference 2011 Fall, San Francisco, USA, Sept. 2011

  • L. Haering, Y. Chen, and A. Czylwik, and Y. Chen:
    Automatic modulation classification methods for wireless OFDM systems in TDD mode,
    IEEE Trans. on Communications, vol. 58, no. 9, pp. 2480–2485, Sept. 2010

  • L. Haering, Y. Chen, and A. Czylwik:
    Efficient modulation classification for adaptive wireless OFDM systems in TDD mode,
    in Proc. of the Wireless Communications and Networking Conference, Sydney, Australia, Apr. 2010

  • L. Haering, S. Bieder, and A. Czylwik:
    Fine frequency synchronization in the uplink of multiuser OFDM systems,
    IEEE Trans. on Communications, vol. 57, no. 12, pp. 3743--3752, Dec. 2009

  • L. Haering, A. Czylwik, and Y. Chen:
    Automatic modulation classification in application to wireless OFDM systems with adaptive modulation in TDD mode,
    in Proc. of the 13th International OFDM-Workshop (InOWo), Hamburg, Germany, August 2008

  • L. Haering, A. Czylwik, and Y. Chen:
    Automatic modulation classification in application to wireless OFDM systems with adaptive modulation in TDD mode,
    in Cost 2100 TD(08)536, Trondheim, Norway, June 2008

  • L. Haering, S. Bieder, A. Czylwik, and T. Kaiser:
    Estimation algorithms of multiple channels and carrier frequency offsets in application to multiuser OFDM systems,
    IEEE Trans. on Wireless Communications, vol. 9, no. 3, pp. 865–870, Mar. 2010

  • L. Haering:
    Synchronisation in Mehrnutzer-OFDM-Systemen,
    Dissertation, Shaker Verlag, ISBN: 978-3832260828, Apr. 2007

  • L. Haering, S. Bieder, and A. Czylwik:
    Improvement of cyclic prefix based timing metrics in OFDM systems by exploiting the channel statistics,
    in Proc. of the 11th International OFDM-Workshop (InOWo), Hamburg, Germany, Aug. 2006, pp. 136–140

  • L. Haering, S. Bieder, and A. Czylwik:
    Closed-form estimators of carrier frequency offsets and channels in the uplink of multiuser OFDM systems,
    in Proc. of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Toulouse, France, May 2006

  • L. Haering, S. Bieder, and A. Czylwik:
    Residual carrier and sampling frequency synchronization in multiuser OFDM systems,
    in Proc. of the IEEE Vehicular Technology Conference (VTC Spring), Melbourne, Australia, May 2006, pp. 1937–1941

  • L. Haering, S. Bieder, and A. Czylwik:
    On synchronization in multiuser OFDM/SDMA with multiple frequency offsets,
    in Proc. of the ITG Workshop on Smart Antennas 2006, Ulm, Germany, Mar. 2006

  • L. Haering, S. Bieder, and A. Czylwik:
    Frequency synchronization and intercarrier interference reduction in the uplink of multiuser OFDM systems,
    Cost 273 TD(05)118, Lissabon, Portugal, Nov. 2005

  • L. Haering, S. Bieder, and A. Czylwik:
    Estimation and compensation of residual frequency offsets in multiuser OFDM systems,
    in Proc. of the 10th International OFDM-Workshop (InOWo), Hamburg, Germany, Aug. 2005, pp. 1–5

  • L. Haering and A. Camargo:
    A MIMO platform for research and education, Smart Antennas in Europe - State of the Art,
    EURASIP Book Series, 2005, chapter Synchronization Algorithms

  • L. Haering and A. Czylwik:
    Interference power in imperfectly synchronized OFDM/SDMA systems,
    Cost 273 TD(04)180, Duisburg, Germany, Sept. 2004

  • L. Haering, A. Czylwik, and M. Speth:
    Analysis of synchronization impairments in multiuser OFDM systems,
    in Proc. of the 9th International OFDM-Workshop (InOWo), Dresden, Germany, Sept. 2004, pp. 91–95

  • L. Haering, S. Bieder, A. Czylwik, and M. Speth:
    Phase noise induced intercarrier interference in multiuser OFDM systems,
    in Proc. of the IASTED International Conference on Communications Systems and Networks (CSN), Marbella, Spain, Sept. 2004, pp. 225–230

  • L. Haering, B. K. Chalise, and A. Czylwik:
    Dynamic system level simulations of downlink beamforming for UMTS FDD,
    in Proc. of the IEEE Global Telecommunications Conference (GLOBECOM), San Francisco, USA, Dec. 2003, pp. 492–496

  • L. Haering, and A. Czylwik:
    Synchronization in MIMO OFDM systems,
    Kleinheubacher Berichte, Oct. 2003

  • L. Haering, B. K. Chalise, and A. Czylwik:
    Dynamic system level simulator for W-CDMA with smart antennas,
    COST 273 TD(03)018, Barcelona, Spain, Jan. 2003

  • L. Haering, A. B. Gershman, T. Scholand, T. Kaiser:
    Robust beamforming in application to smart antennas for TD-SCDMA communications,
    in Proc. of Second Joint Symp. on Opto- and Microelectronic Devices and Circuits, Stuttgart, Germany, March 2002, pp. 279–282

Co-Authored:
  • K. Kolpatzeck, L. Haering, and A. Czylwik:
    Phase control in photonically steered phased array transmitters by optical homodyne detection
    in Proc. of the European Microwave Week 2016 (EuMW16), London, England, Oct. 2016.
     
  • K. Kolpatzeck, L. Haering, and A. Czylwik:
    Power budget analysis and optimization of photonic beamforming concepts for terahertz transmitters
    in Proc. of the German Microwave Conference 2016 (GeMiC16), Bochum, Germany, March 2016.
     
  • M. Schlamann, L. Haering, and A. Czylwik:
    Lattice filter-based frequency-domain equalizer with multiple frequency offset compensation for MIMO SDMA OFDM systems
    in Proc. of the 18th International OFDM-Workshop (InOWo), Duisburg, Aug. 2014.
     
  • N. Schulz, L. Haering, and A. Czylwik:
    Performance comparison of MRC in cyclic prefix OFDM and OQAM OFDM
    in Proc. of the 18th International OFDM-Workshop (InOWo), Duisburg, Aug. 2014.
     
  • C. Kisters, L. Haering, A. Czylwik:
    Demonstrator for real-time OFDM transmission with bit loading in TDD systems
    in Proc. of the 18th International OFDM-Workshop (InOWo), Duisburg, Aug. 2014.
     
  • C. Kisters, L. Haering, A. Czylwik:
    Software defined radio with adaptive modulation - a framework for USRP2-boards
    in Proc. of the 8th Karlsruhe Workshop on Software Radios, Karlsruhe, Germany, Mar. 2014.
     
  • C. Kisters, L. Haering, A. Czylwik:
    Implementation of a real–time adaptive modulation OFDM transceiver system
    in Proc. of the 17th International OFDM-Workshop 2012, Essen Germany, Aug. 2012.
     
  • K. Nassenstein, S. Orzada, L. Haering, A. Czylwik, T.W. Schlosser, O. Bruder, M. E. Ladd, and S. Maderwald:
    Cardiac MRI: Evaluation of phonocardiogram-gated cine imaging for the assessment of global and regional left ventricular function in clinical routine,
    in 97th Scientific Assembly and Annual Meeting RSNA 2011, Chicago, USA, Nov. 2011

  • S. Maderwald, S. Orzada, Z. Lin, C. Schaefer, A. K. Bitz, O. Kraff, L. Haering, A. Czylwik, M. E. L. M. O. Zenge, S. C. Ladd, and K. Nassenstein:
    7 tesla cardiac imaging with a phonocardiogram trigger device,
    in 19th Annual Meeting and Exhibition ISMRM 2011, Montreal, Canada, May 2011

  • Y. Chen, L. Haering, and A. Czylwik:
    Map-based automatic modulation classification with reduced complexity for TDD-based adaptive OFDM systems,
    in Proc. of the 16th International OFDM-Workshop (InOWo), Hamburg, Germany, Sept. 2011, pp. 165–169

  • T. Akbudak, L. Haering, and A. Czylwik:
    Implementation of an acoustical MIMO-OFDM transceiver system,
    in Proceedings of the 15th International OFDM-Workshop (InOWo), Hamburg, Germany, Sept. 2010

  • Y. Chen, L. Haering, and A. Czylwik:
    Likelihood function-based automatic modulation classification in mobile radio OFDM systems,
    in Proc. of the 15th International OFDM-Workshop (InOWo), Hamburg, Germany, Sept. 2010, pp. 165–169

  • Y. Chen, L. Haering, and A. Czylwik:
    Signaling overhead in OFDM systems with adaptive modulation,
    COST 2100 TD(09)864, Valencia, Spain, May 2009

  • Y. Chen, L. Haering, and A. Czylwik:
    Reduction of AM-induced signaling overhead in WLAN-based OFDM systems,
    in Proc. of the 14th International OFDM-Workshop (InOWo), Hamburg, Germany, Sept. 2009, pp. 30–34

  • S. Bieder, L. Haering, and A. Czylwik:
    Capacity of UMTS-FDD-based cellular systems with smart antennas in presence of position and alignment errors,
    in Proc. of the IEEE Radio & Wireless Symposium (RWS), Orlando, USA, Jan. 2008

  • S. Bieder, L. Haering, and A. Czylwik:
    Performance of different adaptive beamforming concepts in cellular UMTS-FDD networks using realistic base station antenna elements,
    in Proc. of the 2nd European Conference on Antennas and Propagation (EuCap), Edinburgh, Scotland, Nov. 2007

  • S. Bieder, L. Haering, and A. Czylwik:
    Impact of imperfections in the array configuration on the capacity of UMTS-FDD based cellular networks with smart antennas,
    in COST 2100, 3rd MCM, Duisburg, Germany, Sept. 2007

  • S. Bieder, A. Czylwik, L. Haering, and B. K. Chalise:
    Different array configurations and realistic antenna characteristics in the downlink of WCDMA-based cellular systems,
    in Proc. of the 2nd International ITG Conference on Antennas (INICA), Munich, Germany, Mar. 2007

  • S. Bieder, L. Haering, A. Czylwik, and B. K. Chalise:
    Realistic antenna elements and different array topologies in the downlink of UMTS-FDD networks,
    in Proc. of the ITG/IEEE Workshop on Smart Antennas 2007, Vienna, Austria, Feb. 2007

  • S. Bieder, A. Czylwik, L. Haering, and A. Alshabo:
    Investigations on correlation properties of ultra-wideband radio channels,
    in VDE/ITG Diskussionssitzung Antennen und Messverfahren fuer Ultra-Wide-Band (UWB)-Systeme, Kamp-Lintfort, Germany, Dec. 2006

  • B. K. Chalise, L. Haering, and A. Czylwik:
    Robust uplink to downlink spatial covariance matrix transformation for downlink beamforming,
    in Proc. of the IEEE International Conference on Communications (ICC), Paris, France, Jun. 2004, pp. 20–24

  • B. K. Chalise, L. Haering, and A. Czylwik:
    Uplink to downlink spatial covariance matrix transformation concepts for downlink beamforming,
    in Proc. of the IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), Darmstadt, Germany, Dec. 2003

  • B. K. Chalise, L. Haering, and A. Czylwik:
    Robust spatial covariance matrix transformation techniques for downlink beamforming,
    in Proc. of the IEEE International Zurich Seminar on Communications (IZS), Zuerich, Switzerland, Feb. 2004, pp. 204–207

  • B. K. Chalise, L. Haering, and A. Czylwik:
    System level performance of UMTS-FDD with covariance transformation based DL beamforming,
    in Proc. of the IEEE Global Telecommunications Conference (GLOBECOM), vol. 1, San Francisco, USA, Dec. 2003, pp. 133–137