Abstract
A low complexity peak-to-average power ratio (PAPR) reduction method is proposed for orthogonal frequency division multiplexing with offset quadrature amplitude modulation (OFDM/OQAM) systems. Firstly, the time-domain oversampling is performed, and then power normalization is adopted and then followed by clipping. Finally, the output clipped signals are filtered by a low-pass filter. In addition, effects of clipping with oversampled OFDM/OQAM signals are analyzed in terms of signal noise distortion ratio (SNDR), signal distortion ratio (SDR) and signal-to-noise ratio (SNR). Simulation results demonstrate that the proposed method can effectively reduce the peak regrowth and PAPR after filtering.
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