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A note on asymptotically catastrophic convolutional codes of rate (n-1)/n

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1 Author(s)
Hole, K.J. ; Dept. of Inf., Bergen Univ., Norway

Convolutional codes with rate R=(n-1)/n,n⩾2, are defined in terms of their minimal parity check matrices. The matrices are represented by a binary vector notation introduced by Ytrehus (1992). The upper bounds on ω0 (minimum average weight per branch) are presented. Many classes of rate (n-1)/n convolutional codes are shown to be asymptotically catastrophic

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Communications, IEEE Transactions on  (Volume:45 ,  Issue: 9 )