Patent ID: 8179989

Claim:
A transmission apparatus comprising: a pseudo data addition section configured to add pseudo data into input transmission data comprised of at least a subcarrier of a radio frequency to fill an empty region in the input transmission data; an OFDM (Orthogonal Frequency Division Multiplexing) 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 and outputting the corrected signal for the power amplifier, and the distortion compensation circuit monitoring the output of the power amplifier to update the distortion compensation coefficient.