A. H. Tewfik
Professor

B.Sc, 1982, EECS, Cairo University
M.Sc., 1984, Massachusetts Institute of Technology
E.E., 1985, Massachusetts Institute of Technology
Sc.D., 1987, EECS, Massachusetts Institute of Technology

Tel: (612) 625-6024
E-mail: tewfik@ece.umn.edu
Web Page: http://www.ece.umn.edu/users/tewfik/

E. F. Johnson Professor of Electronic Communications


My current research deals with data centric computing, storage and networking; radio resource management for wireless local area and sensor networks with a focus on multimedia, server, storage and conformal ultrasound sensor networks; ultrawideband communications for wireless personal area and multimedia/server/storage networks; signal processing for multimedia (in particular watermarking, data hiding and content-based retrieval) and heart diagnostic from acoustic measurements.


In the past, I made seminal contributions to low power multimedia communications, adaptive search and data acquisition strategies for world wide web applications, radar and dental/medical imaging, monitoring of machinery via acoustic emissions, industrial measurements, wavelet signal processing and fractals.


Recent Publications

"Waveform Selection in Radar Target Classification," S. Sowelam and A. H. Tewfik, IEEE Trans. on Info. Theory, vol. 46, no. 3, p. 1014, May 2000.

"Event-Driven Video Abstraction and Visualization," J. Nam and A. H. Tewfik, (invited paper) Special Issue on Multimedia Information and Systems, Multimedia Tools and Applications, vol. 16, no. 1, pp. 55-77, Kluwer Academic Publishers, Jan. 2002.

"A Construction of Space-Time Code Based on Number Theory," M. O. Damen, A. H. Tewfik and J. - C. Belfore, IEEE Trans. on Info. Theory, vol. 48, no. 3, p. 753, March 2002.

"Low Complexity Receiver for CDMA Multiuser Communications," M. Nafie and A. H. Tewfik, IEEE Trans. on Signal Proc., pp. 1747-1758, vol. 50, no. 7, July 2002.

"Deterministic and Iterative Solutions To Subset Selection Problems," M. Nafie and A. H. Tewfik, IEEE Trans. on Signal Proc., pp. 1591-1601, vol. 50, no. 7, July 2002.

"Resource Management Strategy in Wireless Multimedia Communications - Total Power Saving in Mobile Terminals with a Guaranteed QoS," T.H. Lan and A. H. Tewfik, to appear in IEEE Trans. on Multimedia, 2003.

"Music Playlist Generation Based on Global and Transitional Constraints," M. Alghoniemy and A. H. Tewfik, to appear in IEEE Trans. on Multimedia, 2003.

"Robust Clustering of Acoustic Emission Signals Using Neural Networks and Signal Subspace Projections," V. Emamian, M. Kaveh, A. H. Tewfik, Z. Shi , L. Jacobs and J. Jarzynski, to appear in EURASIP J. Applied Signal Processing, 2003.

"Synchronous UWB-OFDM," E. Saberinia and Ahmed H. Tewfik, invited paper, in Proc. of the 2002 IEEE Int. Symp. On Wireless Comm., Victoria, BC, Canada, September 2002.

"Ultrawideband Orthogonal Frequency Division Multiplexing," A. H. Tewfik and E. Saberinia, in Proc. 2002 IEEE Globecom, Taipei, Taiwan, Nov. 2002.