Method and a device for increasing the amount of information bits comprised in a symbol

摘要

The present invention concerns a method for increasing the amount of information bits comprised in a symbol transferred by a source to at least one receiver, the symbol being representative of a modulated base sequence obtained by encoding a sequence of base bits selected by the source and by modulating the encoded selected sequence, the modulated base sequence having fixed points. The source :
- encodes the selected sequence of base bits and a sequence of supplementary bits,
- obtains a modulated base sequence by modulating the encoded selected sequence of base bits,
- obtains a modulated altering sequence by modulating the sequence of supplementary bits,
- alters the modulated base sequence by modifying at least a part of the values of its fixed points using the modulated altering sequence in order to obtain a modulated altered sequence,
- transfers the modulated altered sequence under the form of an altered symbol.