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Efficient PAPR Reduction Method for FBMC based Systems Using Isosceles Trapezoidal Distribution Transforms

In this paper, a new technique based on the Isosceles Trapezoidal Distribution Transform (ITDT) is proposed to reduce the PAPR of FBMC/OQAM transceiver by transforming original Gaussian distributed FBMC signals into an Isosceles Trapezoidal, while maintaining a constant evelope.

Published onMar 23, 2022
Efficient PAPR Reduction Method for FBMC based Systems Using Isosceles Trapezoidal Distribution Transforms
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Abstract

Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) has been one of the key proposed candidate methods for fifth-generation wireless communication and beyond systems (5G) due to its many attractive properties and features related to spectral confinement. However, the applicability of the FBMC/OQAM modulation method is limited mainly by its high peak to average power ratio (PAPR), which can significantly reduce system efficiency. In this paper, a new technique based on the Isosceles Trapezoidal Distribution Transform (ITDT) is proposed to reduce the PAPR of FBMC/OQAM transceiver by transforming original Gaussian distributed FBMC signals into an Isosceles Trapezoidal, while maintaining a constant average output power level. The general formulas of the proposed scheme are derived and the trade-off between PAPR reduction and BER performance is accomplished by properly choosing variable parameters which are required for controlling the nonlinearity of the Companding function used in the proposed technique. The presented simulation results demonstrate that the proposed scheme can offer substantially better overall performance for FBMC based systems in terms of PAPR reduction, BER performance, and bandwidth efficiency compared to the other competitive methods.

Keywords: FBMC, OQAM, 5G, PAPR, Isosceles Trapezoidal Distribution Transform (ITDT).

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Efficient PAPR Reduction Method For FBMC based Systems Using Isosceles Trapezoidal Distribution Transforms

Efficient PAPR Reduction Method For FBMC based Systems Using Isosceles Trapezoidal Distribution Transforms

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