Impact of full duplex on resource allocation for small cell networks

In this paper, a study of the effect of full duplex on resource allocation for small cell network is presented. In our model, both the macro-base station and femtocell access point operate in full-duplex where users attempt to connect either to the base station or the femtocell access point. A resource allocation problem is formulated to adjust the base station and the femtocell access point transmitting powers to maximize the downlink channel capacity while guaranteeing the uplink channel QoS by maintaining a certain channel capacity. In addition, a solution algorithm using the interior point method is proposed. Our results show that depending on the interference conditions, it can be decided when it is preferable to employ full-duplex and when it is more advantageous to use half-duplex.