RADIO TRANSMITTER, RADIO RECEIVER, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a radio transmitter, radio receiver, radio communication system, and radio communication method capable of effectively using a white space and improving throughput.SOLUTION: A radio transmitter for performing data transmission using OFDM comprises: a frequency information acquisition unit 211 for acquiring information on a TV white space and partial TV white space; a full subcarrier OFDM frame generation unit 32 for generating a transmission signal frame including a preamble for synchronization; a partial subcarrier OFDM frame generation unit 33 for generating a transmission signal frame in which part of subcarriers is made to be null on the basis of the information on the partial TV white space and no preamble for synchronization is included; and a transmission unit 34 for performing synchronous transmission on the transmission signal frames.