User Scheduling for Full-Duplex Cellular Networks

Abstract

In this paper, the problem of user scheduling in full-duplex (FD) wireless cellular networks is considered. Considering that without modestly planning, the inter-user interference in FD transmissions limits the potential FD gains. User scheduling becomes a significant issue in FD systems. Different from previous works where users are scheduled according to the first-come first-served rule, we propose a user selection scheduling scheme to alleviate the inter-user interference. Then, probabilities of base stations (BSs) operating in FD, half-duplex (HD) downlink, HD uplink and idle modes are calculated so as to obtain the corresponding interference. Moreover, we analyze the performance of the system with the proposed scheduling scheme in terms of outage probability and average sum rate. The simulation results show that downlink outage probability is improved compared to that with the first-come first-served rule.