Full duplexwireless communications with partial interference cancellation

In this paper we study a full duplex (FD) multiple-antenna point-to-point communication system with a limited RF self-interference cancellation capability. Thereby, transmitter side digital signal processing techniques can be developed to guarantee the reliability of the aforementioned FD system. For this purpose, we propose a common system model for a FD system with partial self-interference cancellation ability. Using the proposed system model, we develop linear transmit strategies which maximize the system sum rate for the MIMO and the MISO setup. The numerical results show that a significant gain over the half duplex (HD) operation mode can be obtained and the magnitude of the gain depends on the self-interference cancellation ability and the system setup.