VERFAHREN UND VORRICHTUNG ZUR CODIERUNG UND DECODIERUNG VON DATEN IN EINEM OFDM-SIGNAL

摘要

The present invention relates in particular to a method for coding data in an OFDM signal, comprising steps of: • selection (102) of a collection of first frequencies in a set of orthogonal frequencies, as a function of the value of a first datum (X), • for each first frequency, generation (104) of a first sub-carrier at the first frequency, modulated in accordance with a first modulation scheme to transport at least one second datum (Y), • selection (108) of a collection of second frequencies distinct from the collection of first frequencies in the predetermined set, as a function of the value of the first datum (X), so that the combination of the first and second selected frequencies codes the first datum (X), • for each second frequency, generation of a second sub-carrier at the second frequency exhibiting, in addition to its frequency, at least one other physical characteristic adapted to distinguish it from each first sub-carrier.