RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD

摘要

A line fluctuation estimating unit (101) estimates a line fluctuation amount between a transmitting apparatus (100) and a receiving apparatus (200). A carrier number deciding unit (102) decides, based on the line fluctuation amount, the number of carriers to be used in transmitting a signal. That is, if the line fluctuation is significantly fast due to a fast fading or the like, the carrier number deciding unit (102) reduces the carrier number to raise the symbol rate per carrier, thereby relatively reducing the line fluctuation between symbols or within a burst.