COMMUNICATION DEVICE AND COMMUNICATION METHOD

摘要

In communication based upon a multi-carrier modulation/demodulation system in which data is allocated to a plurality of carriers (tones) to be transmitted, a per unit transmission efficiency of transmission power is to be improved through an efficient consumption of transmission power for each carrier. In order to attain such a performance, a communication system for transmitting data which is allocated to a plurality of tones is provided with a transmission power calculation unit 91 for calculating an amount of transmission power needed to transmit a certain integer number of bits to be allocated to each tone and a transmission power re-allocation unit 92 for re-allocating transmission power to the plurality of tones based upon a calculation result from the transmission power calculation unit 91 so that the average transmission power of transmission power to be allocated to the respective tones is leveled. <IMAGE>