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of California at Los Angeles, both in physics, and a Ph.D. in electrical engineering from Stanford University.

EUGENE CACCIAMANI is a senior vice president at Hughes Network Systems, where he is responsible for business development, advanced systems engineering, and government business. Previously, he was president and chief executive officer of MA/COMNET and held key management positions at the American Satellite Company and the Communications Satellite Corporation. Dr. Cacciamani also worked at RCA Data Systems Division and served in the U.S. Air Force. He is a fellow of the Institute of Electrical and Electronics Engineers. He received a B.S. degree from Union College and M.S. and Ph.D. degrees from the Catholic University of America, all in electrical engineering.

JOEL ENGEL, recently retired as vice president-technology at Ameritech. Previously, he was vice president for research and development at MCI and vice president of engineering at Satellite Business Systems. Dr. Engel also held several positions, including manager for corporate planning studies, at AT&T and Bell Laboratories and at the Massachusetts Institute of Technology (MIT) Instrumentation Laboratory. He is a member of the National Academy of Engineering and a fellow of the Institute of Electrical and Electronics Engineers (IEEE). He is a recipient of the National Medal of Technology and the IEEE Alexander Graham Bell Medal. Dr. Engel received a B.S. degree from the City College of New York, an M.S. degree from MIT, and a Ph.D. degree from the Polytechnic Institute of Brooklyn.

MARK EPSTEIN is vice president, development, at QUALCOMM, Inc. Prior to joining QUALCOMM, Dr. Epstein served as deputy for C3I to the assistant secretary of the U.S. Army (RDA), and, earlier, as a staff assistant in the Office of the Secretary of Defense. His previous positions include program director at the Computer Sciences Corporation and assistant director, engineering, for Northrop Page Communications. Dr. Epstein received B.S. and M.S. degrees from the Massachusetts Institute of Technology and a Ph.D. from Stanford University, all in electrical engineering. He serves as chairman of the Telecommunications Industry Association's International Standards Coordinating Committee and as a member of two U.S. delegations to the International Telecommunications Union Radiocommunication Sector.

BRUCE FETTE is chief engineer at Motorola's Government and Systems Technology Group Communications Division. He has been involved in signal processing analysis for numerous systems, including the