The Utility of Coded Multilevel Communications Systems

A design tool, called the Utility Chart, was introduced at this Congress in 1967. It is based on the utility, a definition of the efficiency of a communications link. The utility relates the normalized transmission rate (bit density) to the signal-to-noise ratio. This kind of definition of the communications efficiency is based on a paper by R. W. Sanders published in I960 . The definition has been modified to meet more closely the requirements of practical communications designers. The present paper compares the various methods of coded multilevel communications systems with the help of the utility chart. Coded communications is a term introduced by Viterbi in 1959. This term is generally used to designate all kinds of digital communications systems that translate a set of input messages into a set of transmission messages. The translation rule is called a code or, more specifically, a code book

Space Communications: Theory and Applications. Volume 3: Information Processing and Advanced Techniques. A Bibliography, 1958 - 1963

Annotated bibliography on information processing and advanced communication techniques - theory and applications of space communication