an transmission apparatus includes a pseudo data addition section configured to add pseudo data into transmission data for a free subcarrier of a radio frequency , an ofdm modulator subjecting the transmission data added with the pseudo data to ofdm modulation , a power amplifier amplifying power of a transmission signal of the radio frequency , the transmission signal based on an ofdm signal subjected to the ofdm modulation , an antenna radiating the amplified transmission signal by using the radio frequency ; and a distortion compensation circuit compensating for a distortion characteristic of the power amplifier by correcting the ofdm signal with a distortion compensation coefficient accumulated corresponding to the power value of the ofdm signal , outputting the corrected signal for the power amplifier , and monitoring the output of the power amplifier to update the distortion compensation coefficient .