Massive MIMO NOMA with wavelet pulse shaping to minimize undesired channel interference

Abstract

In this article, wavelet Orthogonal Frequency Division Multiplexing (OFDM) based non-orthogonal-multiple-access (NOMA) combined with massive MIMO system for 6G network is proposed. For mMIMO transmissions, the suggested system could enhance the performance by utilizing wavelets and is able to compensate channel impairments for the transmitted signal. Performance measures include spectral efficiency (SE), symbol error rate (SER), and peak to average power ratio (PAPR). Simulation results prove that the proposed system outperforms the conventional fast Fourier transform (FFT) based NOMA systems.

Keywords

• NOMA
• 6G
• mMIMO
• Imperfect SIC
• Wavelet filter banks
• FFT-OFDM