The device and the method of making the peak electrical anti- mean power ratio decrease in the orthogonal frequency division pluralistic communication system

摘要

In the orthogonal frequency division pluralistic communication system which N among the multiplex carriers, L which is smaller than N L which is reserved allots the multiplex carrier to tone, transmits the data remaining (N-L) with tone, peak electrical anti- mean power ratio (PAPR) as for the method of making decrease, L which is reserved the step which forms the impulse signal from tone and, phase of the impulse signal which is formed, N opposite fast Fourier transform of the multiplex carrier step and maximum it makes the phase of the signal convert which possesses the inside maximum peak value of the complex output signal which doesJust difference of peak value and target electrical value, possesses with the step which the impulse signal which is formed scaling is done and opposite fast Fourier transform after doing, the complex output signal and scaling is done the step which the signal complex adds.