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Comments on "An efficient algorithm for computing free distance" by Bahl, L., et al.

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1 Author(s)

In the above paper,^1Bahl et aL described a bidirectional search algorithm for computing the free distance of convolutional codes. There are some flaws in that algorithm. This correspondence contains a corrected version of the algorithm together with a proof that the corrected version always computes the free distance for noncatastrophic codes.

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Information Theory, IEEE Transactions on  (Volume:19 ,  Issue: 4 )