OFDM COMMUNICATION UNIT AND OFDM COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide an OFDM communication unit that can enhance a transmission efficiency while suppressing an error rate characteristic of an information signal. SOLUTION: Spread sections 103-1-103-n apply spread processing to information signals of a plurality of sequences from an S/P 102. An adder section 104 sums signals subjected to the spread processing from the spread sections 103-1-103-n to generate a DS-CDMA information signal. An IFFT section 105 assigns the generated DS-CDMA information signal to a DS subcarrier to conduct frequency division multiplex processing.