Full-Duplex Massive MIMO Systems With RSMA

This paper considers a full-duplex (FD) massive multiple-input multiple-output (mMIMO) system, where both the base station (BS) and user equipment (UE) are equipped with massive transmit antennas. Unlike conventional multi-user linear precoding that treats interference as noise, we integrate ratesplitting multiple access (RSMA), known for better interference management, and its power control policy with FD mMIMO for both uplink and downlink transmission. Assuming imperfect channel state information, closed-form expressions are derived for the achievable sum-rate for the proposed model. Numerical results show that the FD-RSMA demonstrates improved downlink and uplink achievable rates than the conventional multi-user linear precoding scheme.