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Minimum decoding trellis lengths for tail-biting convolutional codes

Minimum decoding trellis lengths for tail-biting convolutional codes

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Circular decoding is a simple decoding algorithm for tail-biting convolutional codes that essentially achieves maximum-likelihood decoding performance. An investigation into the minimum required length of the decoding trellis for circular decoding is presented for optimum free-distance codes of rates 1/2, 1/3 and 1/4.

References

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      • Cox, R.V., Sundberg, C.-E.W.: `Circular Viterbi decoder', US, 5355376, 1994.
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