Modulation device, demodulation device, modulation/demodulation system, modulation method, demodulation method, modulation program and computer readable recording containing the modulation program demodulation program and computer- readable recording medium containing the demodulation program

摘要

When a coding processing unit 12 of a multi-level modulation apparatus 1 maps REPETITION bits to transmission data, it is possible to allocate symbols including the REPETITION bits at signal points of four corners of a signal constellation by mapping the REPETITION bits to specific bit locations of the symbols as a result of segmenting the transmission data after mapping into plural symbols, and thus an error rate can be reduced.