NOMA-aided Hybrid SWIPT for Full-Duplex Massive MIMO Systems

Abstract

This paper studies the hybrid simultaneously wireless information and power transfer (SWIPT) protocol for full-duplex (FD) massive multiple-input multiple-output (MIMO) systems. A wireless energy transmission method combining time-switching (TS) and power-splitting (PS) is proposed to enable the sensor to receive more energy from the base station (BS). In the case of relatively concentrated sensor or user distribution, non-orthogonal multiple access (NOMA) is applied during the information transmission phase. At last, we optimize the beamforming matrix to maximize the downlink (DL) sum-rate. Simulation results show that the proposed NOMA-aided hybrid SWIPT protocol outperforms traditional schemes.