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Quasi-cyclic unit memory convolutional codes
1990
IEEE Transactions on Information Theory
Unit memory convolutional codes with generator matrices, which are composed of circulant suhmatrices, are introduced. This structure facilitates the analysis as well as an efficient search for good codes. Equivalences among such codes and consider 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
doi:10.1109/18.54876
fatcat:veo7qiyf7nddfmrxdulqnzn3hi