Concept

Robert G. Gallager

Summary
Robert Gray Gallager (born May 29, 1931) is an American electrical engineer known for his work on information theory and communications networks. Gallager was elected a member of the National Academy of Engineering (NAE) in 1979 for contributions to coding and communications theory and practice. He was also elected an IEEE Fellow in 1968, a member of the National Academy of Sciences (NAS) in 1992, and a Fellow of the American Academy of Arts and Sciences (AAAS) in 1999. He received the Claude E. Shannon Award from the IEEE Information Theory Society in 1983. He also received the IEEE Centennial Medal in 1984, the IEEE Medal of Honor in 1990 "For fundamental contributions to communications coding techniques", the Marconi Prize in 2003, and a Dijkstra Prize in 2004, among other honors. For most of his career he was a professor of electrical engineering and computer science at the Massachusetts Institute of Technology. Gallager received the B.S.E.E. degree from the University of Pennsylvania in 1953. He was a member of the technical staff at the Bell Telephone Laboratories in 1953–1954 and then served in the U.S. Signal Corps 1954–1956. He returned to graduate school at the Massachusetts Institute of Technology (MIT), and received the S.M. degree in 1957 and Sc.D. in 1960 in electrical engineering. He has been a faculty member at MIT since 1960 where he was co-director of the Laboratory for Information and Decision Systems from 1986 to 1998, was named Fujitsu Professor in 1988, and became Professor Emeritus in 2001. He was a visiting associate professor at the University of California, Berkeley, in 1965 and a visiting professor at the École Nationale Supérieure des Télécommunications, Paris, in 1978. Gallager's 1960 Sc.D. thesis, on low-density parity-check codes, was published by the MIT Press as a monograph in 1963. The codes, which remained useful over 50 years, are sometimes called "Gallager codes". An abbreviated version appeared in January 1962 in the IRE Transactions on Information Theory and was republished in the 1974 IEEE Press volume, Key Papers in The Development of Information Theory, edited by Elwyn Berlekamp.
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