Patent ID: 8953709
Filing Date: 2015-02-10
Classification: H04L

Abstract:
1. A communication device which communicates with other equipment by wireless communications in accordance with an orthogonal frequency division multiplexing, comprising: a modulator which modulates an input signal, assigns the signal to subcarriers frequency components of which are orthogonal to each other, and generates a subcarrier modulation signal; an IFFT calculator which performs reverse Fast Fourier Transform on the subcarrier modulation signal; a separator which separates a calculation result by the IFFT calculator into real part data which is a real part of the calculation result, and imaginary part data which is an imaginary part of the calculation result; a calculator which generates, with respect to each of the real part data and the imaginary part data, post-distribution sub data in which the signs of respective elements are the same, values of elements are different from each other, and the total of the values of elements matches with the calculation result of the element of the real part data or the imaginary part data after performing a calculation on each element of the real part data and the imaginary part data, performs a post-distribution calculation on each element of the post-distribution sub data, arranges the post-distribution sub data on which the post-distribution calculation is performed in order, based on the order of the elements of the real part data or the imaginary part data, and combines arranged post-distribution sub data to generate real part post-distribution data and imaginary part post-distribution data; a combiner which generates a baseband signal based on the data in which the real part post-distribution data and the imaginary part post-distribution data generated by the calculator are combined; and a transmitter which generates a transmission signal from the baseband signal to transmit generated transmission signal.