FIELD: device and method for generation of codes having alternating transmission speed, with direct correction of errors in wireless data transmission system.
SUBSTANCE: device for generating quasi-complementary doubled binary turbo codes (QC-DBTC) includes a QC-DBTC encoder, which receives a stream of information symbols and generates a set of streams of systematic symbols and a set of parity symbols in accordance to encoding speed setting. The device additionally includes a quadro-symbol transformer, which performs quadro-symbol transformation of systematic symbol streams to one symbol stream, channel interleaving device, which independently interleaves quadro-transformed stream of systematic symbols and streams of parity symbols, performs reverse quadro-transformation of quadro-transformed stream of systematic symbols, alternates symbols in parity symbol streams, and serially and reversely concatenates the quadro-transformed stream of systematic symbols with alternated streams of parity symbols, and also generator of doubled binary turbo code for repeating serially concatenated stream of symbols and selecting a predetermined number of symbols from repeated stream of symbols in accordance with encoding speed and selection information, thus creating QC-DBTC codes.
EFFECT: various redundancy ensured by usage of a simple QC-DBTC encoder with maximal system transmission coefficient.
9 cl, 9 dwg, 2 tbl
