DocumentCode
927512
Title
There is no MacWilliams identity for convolutional codes (Corresp.)
Author
Shearer, James B. ; Mceliece, Robert J.
Volume
23
Issue
6
fYear
1977
fDate
11/1/1977 12:00:00 AM
Firstpage
775
Lastpage
776
Abstract
An example is provided of two convolutional codes that have the same transmission gain but whose dual codes do not. This shows that no analog of the MacWilliams identity for block codes can exist relating the transmission gains of a convolutional code and its dual.
Keywords
Convolutional codes; Dual codes; Block codes; Convolutional codes; Entropy; Equations; Gradient methods; Hafnium; Hamming weight; Inverse problems; Probability density function; Testing;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/TIT.1977.1055785
Filename
1055785
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