| 摘要 |
<p>A transmitter transmits OFDM modulated signals to a receiver (step S1). The receiver measures the communication quality of the received signal for each subcarrier (step S2) and reports information on subcarriers having low communication quality to the transmitter (step S3). The transmitter determines the plural subcarriers having the low communication quality, to which the same data is assigned according to the information reported from the receiver (step S4), and assigns and transmits the multiplexed data thereto (step S5, S6). The receiver separates the received signals into a group of the subcarriers to which the same data is assigned and a group of the subcarriers to which the same data is not assigned, synthesizes the data of the former subcarrier group, and demodulates it in combination with the data of the latter subcarrier group (step S7).</p> |
