Maraş Meryem, Ayvaz Elif Nur, Gömeç Meltem, Savaşcıhabeş Asuman, Özen Ali
Department of Electrical and Electronics Engineering, Nuh Naci Yazgan University-HARGEM, Kayseri 38010, Turkey.
Tasarruf A. Ş., Gevhernesibe, İstasyon Cd. No:41/C, Kayseri 38010, Turkey.
Sensors (Basel). 2021 Mar 5;21(5):1831. doi: 10.3390/s21051831.
In this paper, a new WHT-LWT-GFDM waveform obtained by combining Walsh-Hadamard Transform (WHT), Lifting Wavelet Transform (LWT), and Generalized Frequency Division Multiplexing (GFDM) is presented for use in next-generation wireless communication systems. The proposed approach meets the requirement of 5th-generation (5G) and beyond communication schemes in terms of low latency, low peak-to-average-power ratio (PAPR), and low bit-error rate (BER). To verify the performance of the presented waveform, PAPR and BER simulation results were obtained in additive white Gaussian noise (AWGN) and flat Rayleigh fading channels, and the performance of the proposed system was compared with conventional Orthogonal Frequency Division Multiplexing (OFDM), GFDM, and Walsh-Hadamard transform-based GFDM (WHT-GFDM). Simulation results show that the proposed waveform achieves the best BER and PAPR performances and it provides considerable performance gains over the conventional waveforms.
本文提出了一种通过结合沃尔什-哈达玛变换（WHT）、提升小波变换（LWT）和广义频分复用（GFDM）获得的新型WHT-LWT-GFDM波形，用于下一代无线通信系统。所提出的方法在低延迟、低峰均功率比（PAPR）和低误码率（BER）方面满足了第五代（5G）及以后通信方案的要求。为了验证所提出波形的性能，在加性高斯白噪声（AWGN）和平坦瑞利衰落信道中获得了PAPR和BER仿真结果，并将所提出系统的性能与传统正交频分复用（OFDM）、GFDM以及基于沃尔什-哈达玛变换的GFDM（WHT-GFDM）进行了比较。仿真结果表明，所提出的波形实现了最佳的BER和PAPR性能，并且与传统波形相比提供了显著的性能提升。
