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A weighted-output variant of the viterbi algorithm for concatenated schemes using a convolutional inner code

Une Variante À Sortie Pondérée De L'Algorithme De Viterbi Pour Des Schémas Concaténés À Code Intérieur Convolutif

  • Rémi Sfez
  • Gérard Battail
Section 5 Convolutional Codes
Part of the Lecture Notes in Computer Science book series (LNCS, volume 514)

Abstract

We describe a means for weighting the output of Viterbi decoding. At variance with previous similar algorithms, it results from simplifying the optimum weighted-output decoding rule. Simulation results over both the additive Gaussian channel and the Rayleigh fading channel are reported.

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8. References

  1. [1]
    G.D. FORNEY, Concatenated Codes, MIT Press, 1966Google Scholar
  2. [2]
    G. BATTAIL, Pondération des Symboles Décodés par l'Algorithme de Viterbi, Annales des Télécommunications, vol. 42, no 1–2, Jan.–Feb. 1987, pp. 31–38Google Scholar
  3. [3]
    J. HAGUENAUER and P. HOEHER, A Viterbi Algorithm with Soft-Decision Outputs, IEEE Globecom, Dallas, 1989Google Scholar
  4. [4]
    R. SFEZ and G. BATTAIL, Sur les Schémas de Codes Concaténés avec Décodages Pondérés, 12-th GRETSI, Juan-les-Pins, 12–16 June 1989, pp. 263–266Google Scholar
  5. [5]
    G. BATTAIL, Le Décodage Pondéré en tant que Procédé de Réévaluation d'une Distribution de Probabilité, Annales des Télécommunications, vol. 42, no 9–10, Sept.–Oct. 1987, pp. 499–509Google Scholar
  6. [6]
    L.R. BAHL, J. COCKE, F. JELINEK and J. RAVIV, Optimal Decoding of Linear Codes for Minimizing Symbol Error Rate", IEEE Trans. Inf. Th., vol. 20, no 2, March 1974, pp. 284–287CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • Rémi Sfez
    • 1
  • Gérard Battail
    • 2
  1. 1.TRTLe Plessis-Robinson CedexFrance
  2. 2.Telecom ParisParis Cedex 13France

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