Transcript Slide 1 - The University of Texas at Dallas

Erik Jonsson School of Engineering and Computer Science
Distinguished Lecturer Series 2007
and the Dallas Chapter of IEEE Signal Processing Society
Professor Costas N. Georghiades
Texas A&M University
On the Estimator-Correlator and the Search for the
Optimum Transmit Point
Abstract: Mapping a received noisy signal into the information symbols that produced it with minimum average probability of error is a
fundamental problem in digital communications. The search for the optimum point is complex due to the discrete and multidimensional nature of
the search space for many current practical systems and it is made even more difficult by the need for the search to be done in real-time. The realtime computation constraint means that the search must be done efficiently if practical rates are to be achieved, but also near optimally for
reasonable performance. We look at the problem of optimum detection in the context of the estimator-correlator (EC) structure and some of its
implications. In particular, we show how the EC can motivate near optimal and efficient decoding for the multi-input multi-output (MIMO) noncoherent channel and survey briefly some of the existing general search techniques.
Date: Friday,
Mar. 30, 2007
Time: 11:00 a.m.
Place: Engineering
and Computer
Science Complex
UTD Campus
TI Auditorium 2.102
Costas N. Georghiades received the B.E. degree with distinction from the American University of Beirut
and the M.S. and D.Sc. degrees from Washington University in 1983 and 1985, respectively. Since
1985 he has been with the Electrical & Computer Engineering Department at Texas A&M University,
where he is currently Department Head and holder of the Delbert A. Whitaker Endowed Chair. His
general interests are in the application of information, communication and estimation theories to the
study of communication systems.
He is an IEEE Fellow and has served in editorial positions with various IEEE journals, including the
Transactions on Communications, the Transactions on Information Theory, the JSAC and
Communications Letters. Recent conference service includes his being General co-Chair of the 2004
Information Theory Workshop and Technical Program co-Chair for the 2005 Communication Theory
Workshop. He was until recently chair of the Communication Theory Technical Committee and chair of
the Fellows Evaluation Committee of the Information Theory Society. He currently serves as Editor-inChief of IEEE Communications Letters.
Erik Jonsson School of Engineering and Computer Science
The University of Texas at Dallas
2601 N. Floyd Road
Richardson, TX 75083
For more information:
Phone: 972-883-2974
www.utdallas.edu