APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN COMMUNICATION SYSTEM SUPPORTING BIT INTERLEAVED CODED MODULATION WITH ITERATION DECODING SCHEME

摘要

The present invention relates to a signal transmitting method in a signal transmitting apparatus of a communication system supporting a bit interleaved coded modulation with iterative decoding (BICM-ID) scheme. The signal transmitting method comprises the steps of: generating an external code by executing an external coding operation based on an external coding scheme preset for an input message; generating an interleaved signal by executing an interleaved operation corresponding to the interleaved scheme based on an generation matrix preset for the external code; generating an internal code by executing an internal coding operation based on an internal coding scheme preset for the interleaved signal; generating a modified signal by executing a modification operation based on a modification scheme preset for the internal code; and transmitting the modified signal, wherein the generation matrix is generated by applying at least one from a column permutation rule and a row permutation rule preset for an quasi-cyclic (QC) interleaver.