Multi-carrier wireless communication system, a transmitter and receiver, as well as multi-carrier wireless communication method

摘要

PPROBLEM TO BE SOLVED: To provide a multicarrier wireless communication system, a transmitter and a receiver, and a multicarrier wireless communication method capable of reducing deterioration in propagation path estimate accuracy eminently appearing in a subcarrier located at a high frequency region among all subcarriers in a frequency band while suppressing an increase in a circuit scale. PSOLUTION: The wireless transmitter includes a dummy carrier attaching means for attaching a dummy carrier to a data carrier used at data transmission in the case of transmission of a propagation path estimate symbol for measuring a frequency response of a propagation path and transmitting the resulting data carrier to the wireless receiver, and the wireless receiver includes: a propagation path estimate means for obtaining the frequency response of the propagation path on the basis of the propagation path estimate symbol; a dummy carrier separation means that separates the frequency response into a frequency response of a part corresponding to the dummy carrier and a frequency response of a part corresponding to the data carrier; and a data demodulation means for demodulating the data by utilizing the frequency response of the part corresponding to the data carrier. PCOPYRIGHT: (C)2007,JPO&INPIT