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Dr.-Ing. Keyvan Zarifi

Contact

  • 04.2005-05.2007: Ph.D (with the hightes honors) in Electrical Engineering, Darmstadt University of Technology, Darmstadt, Germany. Thesis: "Blind Signature Waveform Estimation and Linear Multiuser Detection in Direct Sequence Code Division Multiple Access Systems"
  • 03.2002-04.2005: Ph.D. Candidate in Electrical Engineering and Research Associate in Department of Communication Systems*
  • 09.2002-03.2003: Visiting Researcher, Communication Research Laboratory, McMaster University, Hamilton, Ontario, Canada
  • 09.1997-09.2002: M.Sc. in Electrical Engineering, University of Tehran, Tehran, Iran. Thesis: "Robust Control of Nonlinear Systems Using Nonlinear H_ Method"
  • 09.1993-09.1997: B.Sc. in Electrical Engineering, University of Tehran, Tehran, Iran

* The university has been changed to accompany the adviser, Prof. Alex Gershman, during the course of Ph.D.

Publications

Journal Papers

  • K. Zarifi and A.B. Gershman, "Asymptotic performance analysis of blind minimum output energy receivers for large DS-CDMA systems", accepted for publication in IEEE Transactions on Signal Processing (14 pages).
  • K. Zarifi and A. B. Gershman, ''Blind subspace-based signature estimation in DS-CDMA systems with unknown wide-sense stationary interference,'' accepted for publication in IEEE Transactions on Signal Processing, to appear in July 2007.
  • K. Zarifi and A. B. Gershman, ''Performance analysis of blind subspace-based signature estimation algorithms for DS-CDMA systems with unknown correlated noise,'' EURASIP Journal on Advances in Signal Processing, vol. 2007, Article ID 83863, 14 pages, 2007. doi:10.1155/2007/83863
  • K. Zarifi and A. B. Gershman, ''Blind subspace-based signature waveform estimation in BPSK-modulated DS-CDMA systems with circular noise,'' IEEE Transactions on Signal Processing, vol. 54, pp. 3592-3602, Sep. 2006.
  • K. Zarifi, S. Shahbazpanahi, A. B. Gershman, and Z.-Q. Luo, ''Robust blind multiuser detection based on the worst-case performance optimization of the MMSE receiver,'' IEEE Transactions on Signal Processing, vol. 53, pp. 295-305, Jan. 2005.
  • K. Zarifi and A. B. Gershman, ''High SNR performance analysis of blind minimum output energy receivers for large DS-CDMA systems", submitted to IEEE Transactions on Signal Processing.
  • K. Zarifi and A. B. Gershman, ''Generalized correlation decomposition based blind channel estimation in DS-CDMA systems with unknown wide-sense stationary noise", submitted to IEEE Transactions on Signal Processing.

Conference Papers

  • K. Zarifi and A. B. Gershman, ''Large system performance analysis of minimum output energy receivers for DS-CDMA systems", IEEE International Workshop on Signal Processing Advances for Wireless Communications (SPAWC), June 2007, Helsinki, Finland.
  • K. Zarifi and A.B. Gershman, "High SNR performance analysis of blind minimum output energy receivers in large DS-CDMA systems", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), April 2007, Honolulu, USA.
  • K. Zarifi and A. B. Gershman, ''Subspace-based blind channel estimation in DS-CDMA systems with unknown wide-sense stationary interference,'' IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2006, Toulouse, France. (This paper was nominated as one of the finalists in the Student Paper Contest.)
  • K. Zarifi and A. B. Gershman, ''Performance analysis of subspace-based signature waveform estimation algorithms for DS-CDMA systems with unknown correlated noise,'' IEEE International Workshop on Signal Processing Advances for Wireless Communications (SPAWC), June 2005, New York, USA.
  • K. Zarifi and A. B. Gershman, ''Enhanced blind subspace-based signature waveform estimation in CDMA systems with circular noise,'' IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), March 2005, Philadelphia, USA.
  • K. Zarifi, S. Shahbazpanahi, A. B. Gershman, and Z.-Q. Luo, ``Robust blind multiuser detection based on worst-case MMSE performance,'' IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2004, Montreal, Canada.
  • K. Zarifi and M. J. Yazdanpanah, ''Two approximate solutions to HJI equation via state dependent Riccati equation,'' European Control Conference (ECC), Sep. 2001, Porto, Portugal.

Grants and Honours

  • Ph.D. Degree with the Highest Honours
  • Industrial R&D Fellowship (IRDF): Funded by Natural Sciences and Engineering Research Council of Canada, 30.000 CAD/year for two years beginning from 2007
  • Finalist in the Student Paper Contest: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), May 2006, Toulouse, France
  • DFG Kongressreise Grant: Funded by Deutsche Forschungsgemeinschaft Bonn, 800 Euro to participate in ICASSP, 2006

Professional Activities

M.Sc. Thesis Adviser:

  • V.T. Tran, "Robust multiuser detection for multi-antenna DS-CDMA systems", TUD, 2007
  • A. Gantumur, "Blind robust multiuser receiver design for mult-antenna DS-CDMA systems", Institut für Nachrichtentechnik, TUD, 2006
  • C. Hohendorf, "An angular diversity scheme for multi-antenna transmission system", Institut für Nachrichtentechnik, Universität Duisburg-Essen, 2003

Journal Referee:

  • IEEE Transactions on Signal Processing, IEEE Signal Processing Letters, IEEE Transactions on Wireless Communications, EURASIP Journal on Wireless communications and Networking, Signal Processing-Elsevier, Institution of Engineering and Technology (IET) Signal Processing
  • Panel Chair: 2nd Iranian Student Conference on Electrical Engineering, University of Tehran, Tehran, Iran, 1999
  • Society Membership: Institute of Electrical and Electronics Engineers (IEEE)

Teaching Experience

  • Teacher Assistant: "Communication technology III: Signal and Information Theory", Darmstadt University of Technology, 2005-2006
  • Teacher: Teaching Calculus to the pre-university students preparing to attend in Iranian National Entrance Exam for study in University, 1994-2001
  • Instructor: Special courses on "Advanced Mathematics for Engineers" and "Diffential Equations" held by ECE Student Council for the B.Sc. students preparing to attend in Iranian National Entrance Exam for Graduate Study, Department of Electrical and Computer Engineering, University of Tehran, 1998-1999.
  • Teacher Assistant: "Advanced Mathematics for Engineers", Department of Electrical and Computer Engineering, University of Tehran, 1996.

References

Dr. Sergiy Vorobyov, Senior member IEEE

Department or Electrical and Computer Engineering

University of Alberta, Canada

Tel.: ++1 780 4o92 9702

E-mail: svor@ieee.org