Optimal Decoding Order and Power Allocation for Sum Throughput Maximization in Downlink NOMA Systems
In this paper, we consider a downlink non-orthogonal multiple access (NOMA) system over Nakagami-m channels.The single-antenna base station serves two single-antenna NOMA users based on statistical channel state information (CSI).We derive the closed-form expression of the exact outage probability under a given decoding order, and we also deduce th