Improving the performance of GFDM waveform employing lifting wavelet transform

In this paper, it is recommended that the combination of generalized frequency division multiplexing (GFDM) structure with lifting wavelet transform (LWT) to increase the performance of GFDM waveform from waveform candidates of the next generation wireless communication systems. The proposed LWT-GFDM method is suitable for the requirements of the 5th Generation (5G) communication systems such as low latency, low PAPR (Peak to Average Power Ratio) and low OOBE (Out of Band Emission). In order to test the performance of the proposed method and compare it with classical OFDM, GFDM and GFDM using discrete wavelet transform (DWT-GFDM), computer simulation studies are performed in AWGN and flat Rayleigh fading channels. It is observed that the proposed method has the best performances from the obtained simulation results. © 2019 IEEE.