Codierungs- und modulationsvorrichtung unter verwendung von ungleichförmiger konstellation

Appareil de codage et de modulation au moyen d'une constellation non uniforme

Coding and modulation apparatus using non-uniform constellation

Abstract

A coding and modulation apparatus and method are presented. The apparatus (10) comprises an encoder (11) that encodes input data into cell words, and a modulator (12) that modulates said cell words into constellation values of a non-uniform constellation. The modulator (12) is configured to use, based on the total number M of constellation points of the constellation and the signal-to-noise ratio SNR in dB, a non-uniform constellation from a group of constellations comprising one or more of predetermined constellations defined by the constellation position vector w 0 , ...,w b-1 , wherein b=M/4.

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NO-Patent Citations (2)

    Title
    N. MUHAMMAD: "Ph.D. dissertation", June 2006, INSTITUT FUR NA-CHRICHTENUBERTRAGUNG, article "Coding and modulation for spectral efficient transmission"
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