Abstract

Multicarrier Non-Orthogonal Multiple Access (MC-NOMA) is a variant of hybrid NOMA, where, Orthogonal Frequency Division Multiple Access (OFDMA) may be employed due to its technical maturity. The MC-NOMA is one of the attractive schemes and likely to be employed in the forthcoming 5G Cellular Networks due to its massive connectivity, spectral efficiency, better cell coverage capability and higher data rate. However, all OFDMA based schemes suffer from the problem of high Peak-to-Average Power Ratio (PAPR). Therefore, in this paper, a novel Finite Impulse Response (FIR) filter based Hadamard Transform (HT) precoded uplink MC-NOMA scheme is presented for high PAPR reduction. MATLAB® simulations demonstrate that, the proposed FIR filter based HT precoded uplink MC-NOMA scheme outperform the HT precoded uplink MC-NOMA schemes without any filtering and conventional uplink MC-NOMA schemes available in literature.