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JOSEPH C. LIBERTI, JR. holds a Ph.D. in electrical engineering from Virginia Tech. He is currently a Research Scientist with Bellcore in Red Bank, New Jersey, where he is working on smart antenna technology and radio channel characterization for a variety of applications including CDMA, PACS, and other forward looking wireless systems.
THEODORE S. RAPPAPORT is the James S. Tucker Professor of Engineering at Virginia Tech, founder of the university's Mobile & Portable Radio Research Group, and Chairman of Wireless Valley Communications. He holds three patents and has authored, co-authored or co-edited 12 books, including Wireless Communications: Principles and Practice (Prentice Hall PTR).