Method for generating a signal by means of a turbo-encoder, and corresponding device and computer program.

A device for generating a signal, comprising:

• a turbo-encoder capable of encoding a set of information symbols and delivering said information symbols and redundancy symbols, the information symbols belonging to a Galois field of cardinal q, denoted GF(q), with q>2, said turbo-encoder comprising:
• a first encoder configured to code said set of information symbols, delivering a first set of redundancy symbols,
• an interleaver configured to interleave said set of information symbols, delivering a set of interleaved information symbols,
• a second encoder configured to code said set of interleaved information symbols, delivering a second set of redundancy symbols, end
• a processor configured to apply a bijective transformation to said information symbols, implemented before and/or after said interleaver, said transformation modifying the value of at least two of said information symbols prior to the encoding of said information symbols by the first and/or the second encoder.

A non-transitory computer-readable medium comprising instructions stored therein for generating a signal when the instructions are executed by a processor of a coding device, wherein the instructions configure the coding device to:

• turbo-code a set, of information symbols delivering said information symbols and delivering redundancy symbols, the information symbols belonging to a Galois field of cardinal q, denoted GF(q), with q>2, wherein the turbo-coding implements, to obtain the redundancy symbols:
• an encoding of said set of information symbols by a first encoder, delivering a first set of redundancy symbols,
• an interleaving of said set of information symbols, delivering a set of interleaved information symbols, and
• an encoding of said set of interleaved information symbols by a second encoder, delivering a second set of redundancy symbols, and
• wherein said turbo-coding also implements a bijective transformation of said information symbols, implemented before and/or after said interleaving, said transformation modifying a value of at least two of said information symbols prior to the coding of said information symbols by the first and/or the second encoder.