MULTIPLEX TRANSMISSION DEVICE, AND MULTIPLEX TRANSMISSION METHOD

摘要

Proposed are a multiplex transmission device including a multiplexing unit and/or a multiplex separation unit, and a multiplex transmission method. The multiplex transmission device includes signal point generation means (or a signal point generation unit) (14) for generating a signal point to modulate data. The signal point, as generated by that signal point generating means, is transformed into signals on a time axis by an inverse fast Fourier transform unit (15), and the transformed signals are arranged on the time axis at a Nyquist time interval. The plural carrier frequencies are arranged on the frequency axis at a Nyquist frequency interval so that they are multiplexed.