A METHOD AND SYSTEM FOR INHIBITING PEAK-TO-AVERAGE POWER RATIO IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

摘要

A method and system for inhibiting peak-to-average power ratio in orthogonal frequency division multiplexing system, it including: takes oversample for the inputted data and implements Inverse Discrete Fourier Transform (IDFT); amplifies said oversampled and IDFT data, and takes amplitude limit; takes DFT transform for the limitted data, and removes the outband noise; takes IDFT transform for the data removed outband noise, then collates and outputs it. Correspondingly, there is a system for inhibiting peak-to-average power ratio. The present invention can inhibit PAPP effectly, increase the average power, make the use of the data bit wide more effect, and reduce the error code rate.