Power optimization for secure communications in full-duplex system under residual self-interference

This paper proposes a full-duplex physical security model with self-interference remaining. This model doesn't need the assistance of external jamming nodes and it ensures that the uplink and downlink transmission of the full-duplex system can achieve the required secrecy rate. Meanwhile, it creates a base station transmission power optimization problem with flexible constraints and a two-level method to achieve the optimization, so that power optimization can take place in the model with self-interference remaining.