Generation and decoding of multi-carrier signal

摘要

A first orthogonal-multi-carrier signal is generated through N-point inverse discrete Fourier transform. The first orthogonal-multi-carrier signal has "N" or less orthogonal multiple carriers, where "N" denotes a predetermined natural number equal to or greater than 2. Every 1-unit time segment of the first orthogonal-multi-carrier signal is repeated "M" times to generate every 1-symbol time segment of a second orthogonal-multi-carrier signal. The second orthogonal-multi-carrier signal has a thinned set of "N" or less orthogonal multiple carriers spaced at M-carrier intervals, where "M" denotes a predetermined natural number equal to or greater than 2.