Outage analysis of full-duplex DF relaying with limited dynamic range of ADC

Abstract

In this paper, the adoption of the full-duplex radio (FDR) technique in three-node decode-and-forward (DF) relaying systems, which consist of a transmit node, a relay node and a destination node, is considered. In particular, in handling the self-interference the effect of the distortion noise due to the limited dynamic range of the analog-to-digital converter (ADC) is considered which may limit the potential of FDR. We first analyze the closed-form analytical expression of the system outage performance and then, derive the optimal transmit power of the relay to minimize the outage probability. Through extensive numerical results, we investigate that the full-duplex relaying can outperform the conventional half-duplex relaying significantly. Numerical results also indicate that although self-interference may reduce the system performance, the outage probability can be efficiently controlled by choosing a suitable relay transmit power.