Communication device and communication method

摘要

A modulator performs a predetermined operation for making an absolute value of an operation result of at least one element of an input signal greater than 0 on the individual elements of the input signal. The modulator generates post-operation data by associating individual elements of the input signal with individual elements of a data series which is a set of pieces of data which are equal in number to the elements of the input signal and whose absolute values are equal to one another, and multiplying the individual elements of the input signal which are subjected to the predetermined operation by the elements of the data series. An IFFT calculator performs inverse fast Fourier transformation on the post-operation data, and a synthesizer synthesizes operation results from the IFFT calculator to generate a baseband signal. A transmitter generates a transmission signal from the baseband signal and transmits the transmission signal.

主权项

1. A communication device for communicating with another device in orthogonal frequency-division multiplexing wireless communication, the communication device comprising:
a modulator that generates post-operation data which is a parallel signal by associating individual elements of an input signal with individual elements of a data series which is a set of pieces of data which are equal in number to the elements of the input signal and whose absolute values are equal to one another, performing a predetermined operation on the individual elements of the input signal, and multiplying the individual elements of the input signal which are subjected to the predetermined operation by the elements of the data series which are associated with the elements of the input signal, the predetermined operation making an absolute value of an operation result of at least one element of the input signal greater than 0; an IFFT calculator that performs inverse fast Fourier transformation on the post-operation data; a synthesizer that synthesizes operation results from the IFFT calculator to generate a baseband signal; and a transmitter that generates a transmission signal from the baseband signal and transmits the transmission signal.