| 摘要 |
<p>A traffic amount calculating unit calculates the amount of traffic occurring due to transport signals acquired by a transport signal acquiring unit. A traffic amount analyzing unit calculates an average traffic amount that is an average of the traffic amounts calculated by the traffic amount calculating unit during a latest given interval. A modulation scheme setting unit changes, based on the calculated average traffic amount, modulation schemes used by a modulating unit. A transmitting unit transmits the transport signals in accordance with a transmission power amount corresponding to the modulation scheme used by the modulating unit.</p> |
