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Quasi-cyclic unit memory convolutional codes | IEEE Journals & Magazine | IEEE Xplore

Quasi-cyclic unit memory convolutional codes


Abstract:

Unit memory convolutional codes with generator matrices, which are composed of circulant submatrices, are introduced. This structure facilitates the analysis of efficient...Show More

Abstract:

Unit memory convolutional codes with generator matrices, which are composed of circulant submatrices, are introduced. This structure facilitates the analysis of efficient search for good codes. Equivalences among such codes and some of the basic structural properties are discussed. In particular, catastrophic encoders and minimal encoders are characterized and dual codes treated. Further, various distance measures are discussed, and a number of good codes, some of which result from efficient computer search and some of which result from known block codes, are presented.<>
Published in: IEEE Transactions on Information Theory ( Volume: 36, Issue: 3, May 1990)
Page(s): 540 - 547
Date of Publication: 31 May 1990

ISSN Information:


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