Abstract

The filter bank multicarrier (FBMC) with offset quadrature amplitude modulation (OQAM) is appreciated for its well-localization in time-frequency domain. However, the major drawbacks of FBMC is high peak to average power ratio (PAPR). In this article,we extend the idea of Discrete Fourier Transform(DFT) spreaded based FBMC scheme theoretically and address the theoretical analysis of the PAPR of the DFT-spread FBMC transmitted signal. The simulation results show that the proposed scheme achieves substantially lower PAPR, low PSD leakage and lower BER than the previous FBMC scheme. We also theoretically derive the expression of the PAPR of proposed scheme. Finally, this paper highlights the strengths and weaknesses of FBMC and DFT based FMBMC

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