Link performance evaluation of Uplink Precoded Multiuser MIMO-NOMA system for 5G Communication Networks

Non orthogonal Multiple Access (NOMA) is a promising candidate for future radio access. Due to the characteristic property of NOMA to multiplex users in time, frequency and power domains, it can achieve capacity gains superior to OFDMA (orthogonal frequency division multiple access). However, being a multi-carrier modulation scheme, NOMA suffers from high peak to average power ratio (PAPR) in addition to the interference at the receiver terminal due to its non-orthogonal nature. In this paper we analyses the link level performance of 2x2 MIMO (Multiple Input Multiple Output) NOMA uplink system with Hadamard Transform Precoding (HTP) over Rayleigh fading channel model. The HTP NOMA enhances the PAPR performance by 3dB over the non precoded NOMA