New scheme for PAPR reduction in FBMC-OQAM systems based on combining TR & deep clipping techniques

Salima Senhadji, Yassine Mohammed Bendimerad, Fathi Tarik Bendimerad

Abstract


Filter Bank Multi-Carrier with Offset Quadrature Amplitude Modulation (FBMC-OQAM) system is a very efficient multicarrier modulation technique for 5G, but it suffers as all multicarriers designs from large PAPR (Peak-to-Average Power Ratio). Tone Reservation (TR) is a method designed to solve this problem by reserving several subcarriers called tones in the frequency domain to generate a cancellation signal in the time domain to eliminate high peaks. In this paper, we suggest a serial combination of Tone Reservation (TR) method with an enhanced version of clipping called Deep Clipping (DC) method (TR&DC) to enhance the peaks (PAPR) mitigation in FBMC-OQAM signal model without significantly impacting the quality of transmission. Numerical results and analysis show that the newTR&DC approach allows better overall performance and offers remarkable gain in term of PAPR mitigation than the TR method, with similar BER performance to TR over Additive White Gaussian Noise channel and Rapp HPA model.TR&DC scheme) to improve the PAPR reduction in FBMC-OQAM signal model without significantly impacting the quality of transmission. Simulation results show that the proposed TR&DC scheme provides better PAPR performance and offers remarkable gain in terms of PAPR reduction than the TR scheme with similar BER performance to TR over Additive White Gaussian Noise channel and Rapp HPA model.

Keywords


deep clipping; FBMC-OQAM systems; PAPR reduction; tone reservation; TR&DC;



DOI: http://doi.org/10.11591/ijece.v11i3.pp%25p
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ISSN 2088-8708, e-ISSN 2722-2578