Abstract: This paper puts forwards a method for adaptive interference cancellation in SIMO and MIMO systems, which by generating a reference input without any parts of the signal, is able to avoid the damage of the signal in the system of interference cancellations. Firstly, deduction is taken theoreticaly. Then simulation is done. According to the results, the performance of the communication systems using this method is improved.

Key words: SIMO, MIMO, adaptive interference cancellation