| 摘要 |
PROBLEM TO BE SOLVED: To improve throughput when effects of a delayed wave and fading fluctuation in a transmission line are low, in a radio communication system performing the radio communication of a signal including a data carrier and a pilot carrier between a first communication device 1 and a second communication device 2 by using an OFDM communication system. SOLUTION: In the second communication device, a detection means 22 (24) detects values of delay spread (values of fading fluctuation) based on a received signal received by a second receiving means 21 from a first transmission means 11 of the first communication device, a determination means 23 (25) determines position intervals of a pilot carrier in directions of a frequency axis and a time axis, and a second transmission means 26 transmits the information. In the first communication device, the control means 11, 13 perform control so that a signal is transmitted by the first transmission means using the position intervals of the pilot carrier based on the received information received by a first receiving means 12. COPYRIGHT: (C)2011,JPO&INPIT
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