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Orthogonal frequency division multiplexing (OFDM), one of the most dominant technology for fifth-generation (5G) wireless communication systems offers a high data rate with better spectrum efficiency. However, OFDM based systems suffer from various channel imperfections such as channel distortion, carrier frequency offset (CFO) due to transceiver local oscillator frequency mismatch, sampling frequency offset (SFO) between DAC/ADCs, nonlinear distortion (NLD) due to the nonlinear power amplifier, and fading caused by frequency selective channels. Recently OFDM based non-orthogonal multiple access (NOMA) scheme is attracting researchers’ attraction owing to its high spectral efficiency, massive connectivity, and resilience to frequency selectivity for the upcoming 5G wireless communication and beyond. However, NOMA-OFDM systems suffer the same demerits as OFDM-based systems to deploy such a …