Self-Adaptive Over-the-Air RF Self-Interference Cancellation based on Signal-of-Interest Driven Regular Triangle Algorithm

A signal-of-interest driven self-adaptive RF self-interference cancellation system has been proposed based on regular-triangle algorithm. A weak 16-QAM OFDM signal-of-interest at 18.35GHz has been successfully retrieved with small converge steps in an in-band full-duplex transmission.