MURI Investigators
Verdu, Sergio

Affiliation: Princeton University
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Research Interests:
Prof. Verdu\'s research is in the fields of information theory and multiuser communications. In the 1980s, his work pioneered the communication receiver design technology of multiuser detection. This technology exploits the structure of the multiaccess interference in order to increase the capacity of multiuser communication systems. Multiuser detection finds applications in communication systems such as mobile cellular, fixed wireless access, high-speed data transmission, satellite communication, digital television, and multitrack magnetic recording. With the ever-growing sophistication of signal processing and computation, advances in communication theory have increasing potential to bridge the gap between feasible channel utilization and the fundamental information theoretical limits on channel capacity. Multiuser detection is now one of the most vibrant research areas in communications technology. Drawing from tools in fields such as detection and estimation, signal processing, information theory, computational complexity, and combinatorial optimization, research in multiuser detection presents opportunities for graduate students interested in applying theoretical tools to the design of innovative receiver technologies for state-of-the-art communication systems. A systematic presentation of this subject can be found in Prof. Verdu\'s 1998 textbook published by Cambridge University Press. His work on information theory explores the fundamental limits of data transmision and compression systems. Opportunities for research exist in a wide range of problems as illustrated by some previous contributions to information theory: a) The capacity of the single-server queues. b) The capacity of multiple-access channels (subject to asynchronism, memory, and so on) c) The capacity of channels with side information. d) A formula for the minimum energy required to send one bit of information reliably. e) The maximum randomness required to simulate the input to a random system. f) Generation of random bits from stochastic processes. g) A general formula for single-user channel capacity. h) Conditions for the validity of the source-channel separation principle. i) The empirical distribution of capacity-achieving codes. j) Formulas for the spectral efficiency of CDMA with optimal and suboptimal receivers. k) Role of the asymptotic equipartition property in optimum data compression. l)The rate-distortion function of Poisson processes and other continuous-time Markov processes. The collection of tutorial articles Information Theory: Fifty Years of Discovery, which Prof. Verdu edited and which was published by IEEE Press in 1999, is a useful reference for graduate students searching for research topics.

Sergio Verdu was born in Barcelona, Catalonia, Spain on August 15, 1958. He received the Telecommunications Engineering degree from the Polytechnic University of Barcelona, Barcelona, Spain, in 1980 and the Ph.D. degree in Electrical Engineering from the University of Illinois at Urbana-Champaign in 1984. Conducted at the Coordinated Science Laboratory of the University of Illinois, his doctoral research pioneered the field of Multiuser Detection. He is currently a Professor of Electrical Engineering at Princeton University where he teaches and conducts research in the Information Sciences and Systems Group. He is also affiliated with the Program in Applied and Computational Mathematics. Sergio Verdu was a recipient of a Fulbright Fellowship, the National University Prize of Spain, an IBM Faculty Development Award, the Rheinstein Outstanding Junior Faculty Award of the School of Engineering and Applied Science at Princeton University, a Presidential Young Investigator Award from the National Science Foundation, a Princeton Engineering Council Award for excellence in undergraduate teaching, the 2000 Frederick E. Terman Award from the American Society for Engineering Education, and the IEEE Third Millennium Medal in 2000. In 1998, Cambridge University Press published his book Multiuser Detection. His papers have received several awards: the D. Fink Paper Award from the IEEE, the 1998 Information Theory Outstanding Paper Award, a Golden Jubilee Paper Award from the IEEE Information Theory Society for his paper Minimum Probability of Error for Asynchronous Multiple Access Channels, and the 2000 Paper Award from the Japan Telecommunications Advancement Foundation. Sergio Verdu has served as Associate Editor of the IEEE Trans. on Automatic Control, and as Associate Editor for Shannon Theory of the IEEE Transactions on Information Theory. He was elected Fellow of the IEEE in 1993 for contributions to multiuser communications and to information theory. He served as an elected member of the IEEE Information Theory Society Board of Governors in 1989-1999, and was President of the IEEE Information Theory Society in 1997. He has held visiting appointments at the Australian National University, the Technion-Israel Institute of Technology, and the University of Tokyo. In 1998 he was Visiting Professor at the Electrical Engineering and Computer Science Dapartment of the University of California, Berkeley. He is a member of the Technion Center for Communication and Information Technology.

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