Antenna selection for loop interference suppression in full-duplex relay systems

This paper presents a new method of suppressing the loop interference caused by relay transmission to reception in the full-duplex relay, in which antenna selection at both transmitted and received sides of the full-duplex relay are considered jointly. Monte Carlo simulations indicate that loop interference can be effectively suppressed by the proposed technique. Therefore, the system performance in terms of capacity and bit error rate (BER) can be efficiently improved with the lower system complexity.