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Communication Dans Un Congrès Année : 2010

Reducing the convergence loss of 3-dimensional turbo codes

Résumé

This paper deals with the convergence loss reduction of a 3-dimensional turbo code combining both parallel and serial concatenation. This code is derived from the classical turbo code by concatenating a rate-1 post-encoder at its output. In order to reduce the observable loss of onvergence at high error rates, we propose first a time varying construction of the post-encoded parity. Then, we analyse the association of the 3-dimensional turbo code with high order odulations, where both the systematic bits and the post-encoded parity bits are more protected than the other parity bits. Performance comparisons are made between the 3GPP2 standardized turbo code and the 3-dimensional 3GPP2 turbo code. The different stages are illustrated with simulation results, asymptotical bounds and EXIT charts.
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Dates et versions

hal-00609329 , version 1 (20-08-2014)

Identifiants

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Dhouha Kbaier, Catherine Douillard, Sylvie Kerouedan. Reducing the convergence loss of 3-dimensional turbo codes. ISTC 2010 : 6th International Symposium on Turbo Codes & Iterative Information Processing, Sep 2010, Brest, France. pp.146 - 150, ⟨10.1109/ISTC.2010.5613823⟩. ⟨hal-00609329⟩
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