Non-binary convolutional codes for turbo coding

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Non-binary convolutional codes for turbo coding

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The authors consider the use of non-binary convolutional codes in turbo coding. It is shown that quaternary codes can be advantageous, both from performance and complexity standpoints, but that higher-order codes may not bring further improvement.

Inspec keywords: turbo codes; convolutional codes

Other keywords: turbo coding; higher-order codes; non-binary convolutional codes; quaternary codes

Subjects: Codes

References

    1. 1)
      • P. Robertson , P. Hoeher , E. Villebrun . Optimal andsuboptimal maximum a posteriori algorithms suitable for turbo decoding. Eur.Trans. Telecommun. , 119 - 125
    2. 2)
      • ‘Draft CCSDS recommendation for telemetry channelcoding (updated toinclude turbo codes)’. Consultative Committee for Space Data Systems, Rev. 4, May 1998.
    3. 3)
      • Berrou, C.: `Some clinical aspects of turbo codes', Proc. InternationalSymposium on Turbo Codes & Related Topics, September 1997, Brest, p. 26–31.
    4. 4)
      • G. Fettweis , H. Meyr . Parallel Viterbi algorithm implementation:breaking the ACS-bottleneck. IEEE Trans. Commun. , 8 , 785 - 790
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