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Erschienen in:
01.06.2015
A d-dimensional irregular compact interleaver design for turbo code
Erschienen in: Annals of Telecommunications | Ausgabe 5-6/2015
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Abstract
Our paper presents a new irregular interleaver design based on the sphere bound (upper bound of the maximum spread value) of a d-dimensional turbo code; in addition, a new normalized dispersion measurement definition for random and irregular interleavers is proposed. The estimation of the normalized dispersion that is used to be chosen by intuitive guess then verified experimentally with heavy simulations can now be estimated directly using analytical formulas developed by our method. Furthermore, we have found a new characteristic parameter that we named “interleaver dimension” that simplify the analysis and the conception of interleaver structures starting from any desired value of normalized dispersion. The dimension parameter is the main variable in our proposed experimental formula giving the normalized width parameter of the d-dimensional irregular compact interleaver (DIC).