Demetre C. Voukalis

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Absstract-Some important aspects of a series of concatenated codes subjected to matrix type-B codes are investigated. Concatenated matrix codes and the concatenated quadratic residue codes especially are emphasized. An analysis of the error patterns, which can be corrected with the matrix coding, also is given. These codes are suitable for compound channels(More)
This paper describes the results of a general theory of matrix codes correcting a set of given types of multiple errors. A detailed study has been made of certain matrix classes of these systematic binary error correcting codes that will correct typical errors of some digital channels. These codes published by Elias,(2,3) Hobb's,(5) and Voukalis(11) account(More)
Different philosophies lie behind the detecting and correcting error patterns in a real communication channel. The sceptic points in choosing an efficient code, specifically the matrix type-B code, were pointed out in Refs. 1 and 2. Some more points are shown here. As a result the matrix type-B code is found to be a “best choice”. Some more theoretical(More)
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