CDMA systems
Prof. Jawad A. Salehi Sharif
University of Technology, Tehran, Iran
| Organizer: IEEE Communications Society and IEEE LEOS |
| Title: Analysis of receiver structures and
optical amplifiers in optical CDMA systems |
| Speaker: Prof. Jawad A. Salehi Sharif University of Technology, Tehran, Iran |
| Abstract: I will first discuss the performance of various fiber-optic CDMA structures employing Optical Orthogonal Codes. I will show that no matter which receiver structure is used, the use of optical amplifier will be inevitable. In the second part of this talk I will describe a novel statistical photon-counting technique to model various optical devices such as optical amplifier, splitters, combiner, star coupler, optical CDMA encoder/decoder. I will use these models in the context of fiber-optic CDMA system to evaluate the overall performance of the system incorporating multiple optical amplifiers. |
| Biography: Jawad A. Salehi received the B.S degree in electrical engineering from the University of California at Irvine in 1979, and the M.S. and Ph.D. from the University of Southern California in 1980 and 1984 respectively. From 1981 to 1984 he was a full-time Research Assistant at Communications Sciences Institute at USC engaged in research in the area of spreads-spectrum systems. From 1984 to 1993, he was a Member of Technical Staff with the Applied Research at Bell Communications Research (Bellcore), Morristown, NJ. From February to May 1990 he was with the Laboratory of Information and Decision Systems At MIT, as a visiting Research Scientist conducting research on optical multiple-access networks. Currently, he is an Associate Professor with the Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran. Since Fall 1999, he has also been a co-director of the Advanced CDMA Lab at Iran Telecommunications Research Center, conducting research in the area of advanced CDMA techniques for optical and radio communications systems. His current research interests are in the areas of optical multiple access networks in particular fiber-optic CDMA, femtosecond or coherent ultrashort light pulse CDMA, holographic CDMA, spread-time CDMA, infrared indoor wireless CDMA, and applications of erbium-doped fiber amplifier in optical systems. His work on optical CDMA systems resulted in ten U.S. patents. Dr. Salehi is a recipient of Bellcore's Award of Excellence. |
| Time and Location: Thursday, January 25, 2001, at 3:00 p.m. Galbraith Building, Room 244 The Galbraith Building is located at 35 St. George Street, Toronto Coffee and cookies will be served. Form more information please contact: Steve Hranilovic: hranilovic@ieee.org Emanuel Istrate: e.istrate@utoronto.ca |
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