Resource allocation in full-duplex OFDMA systems with partial channel state information

In this paper, we focus on a problem of joint subcarrier and rate allocation for an orthogonal frequency division multiple access (OFDMA) full-duplex (FD) system. The goal is to maximize the system´s successful transmission rate (referred as goodput) subject to power constraints at the base station (BS) and uplink users alone with subcarrier constraints. Imperfect channel state information (CSI) at the transmitting nodes is taken into account in the resource allocation problem. A simple suboptimal subcarrier and rate allocation algorithm based on the necessary conditions of the optimization problem is proposed. Simulation results reveal that the proposed scheduling algorithm can substantially improve the sum-goodput over the traditional half-duplex (HD) scheduling.