Performance of self and mutual interference cancellation for FDSC MIMO systems

The benefit of a Full-Duplex Single-Channel (FDSC) system is the double throughput because it can transmit and receive simultaneously at the same time and on the same frequency. However, the expense of FDSC system is on the very strong self-interference signals due to the leakage of transmitting signals that interfere the receiving signals. Moreover, for MIMO systems, the problem of interferences is severely considered due to multiple transmitting and receiving antennas. So far in literatures, there have not been any suitable techniques presented to reduce the self and mutual interferences for FDSC MIMO systems. This paper present the performance of self and mutual interference cancellation by utilizing the mutual coupling model. The interferences can be eliminated by using pre-known interferences that are the mutual coupling signals. The results indicate that the channel capacity performance of the proposed technique can significantly be improved due to the reduction of the interference power. The measurement results indicate that the proposed FDSC MIMO system can suppress the self and mutual interferences signals with the reduction of 29.84 dBm received power.