  Cellular networks are expected to be the main communication infrastructure to
support the expanding applications of Unmanned Aerial Vehicles (UAVs). As these
networks are deployed to serve ground User Equipment (UES), several issues need
to be addressed to enhance cellular UAVs'services.In this paper, we propose a
realistic communication model on the downlink,and we show that the Quality of
Service (QoS)for the users is affected by the number of interfering BSs and the
impact they cause. The joint problem of sub-carrier and power allocation is
therefore addressed. Given its complexity, which is known to be NP-hard, we
introduce a solution based on game theory. First, we argue that separating
between UAVs and UEs in terms of the assigned sub-carriers reduces the
interference impact on the users. This is materialized through a matching game.
Moreover, in order to boost the partition, we propose a coalitional game that
considers the outcome of the first one and enables users to change their
coalitions and enhance their QoS. Furthermore, a power optimization solution is
introduced, which is considered in the two games. Performance evaluations are
conducted, and the obtained results demonstrate the effectiveness of the
propositions.
