Communication method, transmitter apparatus and receiver apparatus

摘要

Modulation scheme control section 155 determines a modulation scheme of a transmission signal based on the reception electric field strength of the entire system estimated in an apparatus of a communicating party and a value of the mean effective reception electric field strength, and outputs a control signal for instructing a determined modulation scheme to S/P sections 102 - 1 and 102 - 2. S/P sections 102 - 1 and 102 - 2 receive the transmission digital signal, perform the serial/parallel transform processing, further perform the adaptive modulation processing according to the instruction from modulation scheme control section 155 . It is thereby possible to control a parameter of the modulation scheme or the like in consideration of relative relationships between channels, and it is thus possible to improve the reception quality.