PROJECT TITLE :
Tone Reservation Technique Based on Peak-Windowing Residual Noise for PAPR Reduction in OFDM Systems
ABSTRACT:
Peak-to-average power ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) might be reduced by reserving several tones to come up with a peak-canceling signal (PCS). However, this technique suffers from high computational complexity. To address this downside, this paper proposes an algorithm based on peak-windowing residual noise, which is generated by windowing the signal samples that exceed the predetermined threshold. Filtering the residual noise to satisfy tone reservation (TR) constraints and scaling with a scaling factor determined to reduce the out-of-vary power generates the PCS. Simulation results show that the proposed algorithm will achieve half dozen.9-dB PAPR reduction with abundant lower complexity than alternative schemes.
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