  NOMA (non-orthogonal multiple access) will be seen as a promising technology
for enhancing spectrum efficiency in future cellular networks. The use of
unmanned aerial vehicle (UAV) Amplify-and-Forward (AF) relaying as a moving
access point or BS, on the other hand, has emerged as a potential solution to
wireless networks' high traffic demands. In this paper, we study joint user
pair and resource allocation-based distance to optimize fair throughput in a
downlink scenario, which concentrates on UAV-aided communication from different
wireless-powered nodes. Several transmission methods are proposed, including
NOMA as well as UAV cooperative relaying and two representative node-pairing
strategies. The simulation results illustrate that the proposed user pairing
strategies for cooperative NOMA and UAV-based cellular networks enhance
downlink transmission performance and ensure optimum use of power and bandwidth
resources.
