OFDM SIGNAL-TRANSMITTING APPARATUS, OFDM SIGNAL- RECEIVING APPARATUS, AND OFDM SIGNAL-RECEIVING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an OFDM signal-transmitting apparatus that can improve efficiency in correcting soft judgment error, and to provide an OFDM signal- receiving apparatus and an OFDM signal-receiving method. SOLUTION: An OFDM system divides a transmission signal into a plurality of subcarriers crossing one another for performing multicarrier transmission. The OFDM signal-transmitting apparatus comprises an OFDM signal- transmitting apparatus 1a and an OFDM signal-receiving apparatus 2a. An MIMO channel is composed of a plurality of transmission antennas 113 of the OFDM signal-transmitting apparatus and a plurality of reception antennas 211 of the OFDM signal-receiving apparatus. An OFDM signal-receiving apparatus 2a is equipped with an interference canceller 215 for separating a synthetic transmission signal from the transmission antenna 113, a weighting coefficient computing unit 216 for acquiring the weighting coefficient of the output value of the interference canceller, and a multiplier 217 for multiplying the output value of the interference canceller by the weighting coefficient that is acquired by the weighting coefficient multiplier.