Laurent Schumacher   PhD, Assistant Professor Computer Science Institute The University of Namur (FUNDP) Rue Grandgagnage 21 B-5000 Namur Belgium

Office:  226 Phone: +32 81 72 49 80 Fax:  +32 81 72 49 67 Email:  lsc@info.fundp.ac.be URL:  http://www.info.fundp.ac.be/~lsc/

Research interests

• Cellular Network Emulation
• SIP- and IMS-related applications
• Routing in Ad-Hoc Networks Enhanced with Smart Antennas
• MIMO Channel Modelling

Lectures

French is the teaching language. However, most of the course material is available in english.

• Computer Architecture
  • INFO B232 - Architecture des ordinateurs
  • IHDC 2009 / IHDC 2110 - Architecture des ordinateurs (Licence à horaire décalé)
• Computer Networking
  • Basics
    • DGTI 3121 - Télécommunications
    • EING 2220 - Télécommunications et réseaux
    • INFO B315 - Télécommunications et réseaux
    • IHDC 2109 - Téléinformatique et réseaux (Licence à horaire décalé)
  • Advanced topics
    • INFO 2231 - Téléinformatique et réseaux (Matières approfondies)

Publications

Book parts or chapters

• Laurent Schumacher, Lars Torsten Berger, Juan Ramiro-Moreno and Troels Bundgaard Soerensen, "Propagation Characterization and MIMO Channel Modeling for 3G", in Adaptive Antenna Arrays, collection "Signals and Communication Technology", Springer-Verlag, 2004.
• Laurent Schumacher and Kimmo Kansanen, "Radio System Aspects - CDMA", in Wireless Flexible Personalised Communications - COST 259 Final Report, Wiley, 2001.

Journal papers

• Laurent Schumacher and Balaji Ragothaman, "Closed-Form Expressions for the Correlation Coefficient of Directive Antennas Impinged by a Multimodal Truncated Laplacian PAS", IEEE Transactions on Wireless Communications, vol. 4, n. 4, July 2005, pp. 1351-1359.

• Jean Philippe Kermoal, Laurent Schumacher, Klaus I. Pedersen and Preben E. Mogensen, "A Stochastic MIMO Radio Channel with Experimental Validation", IEEE Journal on Selected Areas in Communications, vol. 20, n. 6, August 2002, pp. 1211-1226.

• Javier R. Fonollosa, Roger Gaspa, Xavier Mestre, Alba Pagès, Markku Heikkilä, Jean Philippe Kermoal, Laurent Schumacher, Adam Pollard and Juha Ylitalo, The IST METRA Project, IEEE Communication Magazine, vol. 40, n. 7, July 2002, pp. 78-86.

Invited Papers

• Laurent Schumacher, Lars Torsten Berger and Juan Ramiro-Moreno, "Recent Advances in Propagation Characterisation and Multiple Antenna Processing in the 3GPP Framework", Proceedings of XXVIIth URSI General Assembly 2002, Maastricht, The Netherlands, August, 2002, Session C2.

Peer-reviewed Abstracts (International Meetings)

• Olivier De Mey, Laurent Schumacher and Xavier Dubois, "Optimum Number of RLC Retransmissions for Best TCP Performance in UTRAN", Proceedings of 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications PIMRC 2005, Berlin, Germany, 11-14 September 2005.

• Lars T. Berger, Troels E. Kolding, Preben E. Mogensen and L. Schumacher, "Effects of Dominant Other-Sector Interference on Multi-Antenna HSDPA Performance", Proceedings of 8th International Symposium on Wireless Personal Mobile Communications WPMC 2005, Aalborg, Denmark, September 2005.

• Lars T. Berger, Troels E. Kolding, Preben E. Mogensen and L. Schumacher, "Geometry Based Other-Sector Interference Modelling for Downlink System Simulations", Proceedings of the 7th International Symposium on Wireless Personal Multimedia Communications WPMC 2004, Abano Terme, Italy, 12-15 September 2004.

• Lars T. Berger, Troels E. Kolding, Juan Ramiro-Moreno, Pablo Ameigeiras, Laurent Schumacher and Preben E. Mogensen, "Interaction of Transmit Diversity and Proportional Fair Scheduling", Proceedings of IEEE 57th Semiannual Vehicular Technology Conference VTC 2003 Spring, Jeju, Korea, April 2003.

• Lars Torsten Berger and Laurent Schumacher, "Modified Space-Time Transmission in DS-CDMA Downlink Facilitating MISO Channel Equalization", Proceedings of IEEE 56th Semiannual Vehicular Technology Conference VTC 2002 Fall, Vancouver, Canada, 24-28 September 2002, Vol. 2, pp. 941-945.

• Laurent Schumacher, Klaus I. Pedersen and Preben E. Mogensen, "From Antenna Spacings to Theoretical Capacities - Guidelines for Simulating MIMO Systems", Proceedings of 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications PIMRC 2002, Lisbon, Portugal, 15-18 September 2002, Session TAO1.3.

• Javier R. Fonollosa, Markku Heikkilä, Xavier Mestre, Alba Pagès, Adam Pollard, Laurent Schumacher, Lars Torsten Berger, Ami Wiesel and Juha Ylitalo, "Adaptive Modulation Schemes for MIMO HSDPA", Proceedings of IST Mobile Summit 2002, Thessaloniki, Greece, June, 2002, pp. 78-82.

• Jean Philippe Kermoal, Laurent Schumacher, Frank Frederiksen and Preben E. Mogensen, "Polarization Diversity in MIMO Radio Channels: Experimental Validation of a Stochastic Model and Performance Assessment", Proceedings of VTC 2001 Fall, Atlantic City, USA, 7-11 October 2001, Session M 21.

• Jean Philippe Kermoal, Laurent Schumacher, Frank Frederiksen and Preben Mogensen, "Experimental Investigation of the Joint Spatial and Polarisation Diversity for MIMO Radio Channel" (Revised version 4 september 2001), Proceedings of the 4th International Symposium on Wireless Personal Multimedia Communications WPMC 2001, Aalborg, Denmark, 9-12 September 2001, pp. 147-152.

• Laurent Schumacher, Jean Philippe Kermoal, Klaus I. Pedersen and Preben E. Mogensen, "Simulating Polarisation Diversity and Power Allocation in MIMO Channels", Proceedings of the 4th European Personal Mobile Communications Conference EPMCC 2001, Vienna, Austria, February, 2001, Session 15.

• Laurent Schumacher, Klaus I. Pedersen, Jean Philippe Kermoal and Preben E. Mogensen, "A Link-Level MIMO Radio Channel Simulator for Evaluation of Combined Transmit/Receive Diversity Concepts within the METRA Project", Proceedings of IST Mobile Summit 2000, Galway, Ireland, October, 2000, pp. 515-520.

• Jean Philippe Kermoal, Laurent Schumacher, Preben E. Mogensen, Klaus I. Pedersen and Frank Frederiksen, "METRA: Experimental Investigation of MIMO Radio Channels for Indoor Picocell Scenarios", Proceedings of IST Mobile Summit 2000, Galway, Ireland, October, 2000, pp. 509-514.

• Jean Philippe Kermoal, Laurent Schumacher, Klaus I. Pedersen and Preben E. Mogensen, "Experimental Investigation of Correlation Properties of MIMO Radio Channels for Indoor Picocell Scenarios", Proceedings of VTC 2000 Fall, Boston, USA, September 2000, Vol. 1, pp. 14-21.

• Laurent Schumacher and Luc Vandendorpe, "Performance study of DD ML Phase Estimators for DS-CDMA Communications Systems", Proceedings of European Signal Processing Conference EUSIPCO 2000, Tampere, Finland, September 2000.

• Laurent Schumacher and Luc Vandendorpe, "MAI Mitigation in DA ML carrier phase recovery loops for DS-CDMA systems", VTC 1999-Fall, Amsterdam, The Netherlands, September 19-22, 1999, Vol. 3, pp. 1850-1854.

• Laurent Schumacher and Luc Vandendorpe, "Open loop analysis of maximum-likelihood decision-directed phase estimation in CDMA communication systems with QPSK modulation", Proceedings of the 4th Symposium on Communication and Vehicular Technology in the Benelux, Ghent, Belgium, October 1996, pp. 114-121.

• Laurent Schumacher and Luc Vandendorpe, "Maximum likelihood data-aided phase estimators in CDMA communication systems with QPSK modulation", Proceedings of GLOBECOM'96 Communication Theory - Mini-Conference (CTMC96), London, United Kingdom, November 17-22, 1996, pp. 219-223.

• Laurent Schumacher and Luc Vandendorpe, "Maximum likelihood joint phase estimators in CDMA communications systems", IEEE Third Symposium on Communications and Vehicular Technology, Eindhoven, The Netherlands, October 1995, pp. 76-82.

Technical report

• Javier R. Fonollosa, Roger Gaspa, Markku Heikkilä, Jean Philippe Kermoal, Kari Majonen, Xavier Mestre, Alba Pagès, Adam Pollard, Laurent Schumacher, Ami Wiesel and Juha Ylitalo, "Design, Analysis and Selection of Suitable Algorithms", IST Project IST-2000-30148 I METRA Deliverable 3.1, May 2002.

• Laurent Schumacher, Jean Philippe Kermoal, Frank Frederiksen, Klaus I. Pedersen, Albert Algans and Preben E. Mogensen, "MIMO Channel Characterisation", IST Project IST-1999-11729 METRA Deliverable 2, February 2001.