System simulation of adaptive I/Q mismatch compensation method using SystemC-AMS

Insufficient image-rejection due to I/Q mismatch considerably degrades the performance of modern wireless communication systems. This paper presents a SystemC-AMS front-to back-end modeling approach in a Low-IF receiver system with a digital adaptive filter for I/Q mismatch compensation. With the proposed approach, the non-ideal behavioral of the analog building blocks concerning I/Q imbalance is mapped and the performance of compensation filter based on LMS algorithm can be verified efficiently during the system simulation. Simulation results confirmed the feasibility of the implementation of such a compensation filter for increasing the image rejection performance of the Low-IF receiver front end.