Preamble generating device, preamble generating method, and non-transitory computer-readable recording medium storing a program

摘要

A first calculator generates first computational data by reordering elements in at least one of either a real data sequence or an imaginary data sequence constituting a data sequence having a number of elements determined according to a number of elements in a preamble model. A second calculator generates second computational data in which elements of data obtained by applying a fast Fourier transform to the first computational data are spaced apart by a designated number of elements. A preamble generator generates a preamble by multiplying each element of the second computational data by an element of the preamble model at a same position as the each element. A preamble determiner determines on the preamble as a preamble of the transmit signal in a case in which a peak-to-average power ratio of data obtained by applying an inverse fast Fourier transform to the preamble matches a predetermined criterion.

主权项

1. A preamble generating device that generates a preamble of a transmit signal, comprising:
a model determiner that determines on a preamble model including a plurality of elements with a value of 0 or 1, according to a preamble requested for generation; a first calculator that generates first computational data by reordering elements in at least one of either a real data sequence that is a real part of a data sequence having a number of elements determined according to a number of elements in the preamble model, or an imaginary data sequence that is an imaginary part of the data sequence; a second calculator that generates second computational data in which elements of data obtained by applying a fast Fourier transform to the first computational data are spaced apart by a designated number of elements, the second computational data having a same number of elements as the number of elements in the preamble model; a preamble generator that generates a preamble by multiplying each element of the second computational data by an element of the preamble model at a same position as the each element; and a preamble determiner that determines on the preamble as a preamble of the transmit signal in a case in which a peak-to-average power ratio of data obtained by applying an inverse fast Fourier transform to the preamble matches a predetermined criterion.