“…To improve the accuracy of prediction, a deep Q-network based method was proposed in [16] to adjust the locations of UAVs in response to the mobility of ground users. Both [15] and [16] assumed that the power of UAVs was fixed, to further reduce power consumption, the authors in [17] investigated an adaptive UAV deployment scheme. In this scheme, the UAVs can adaptively change transmit power or relocate to new positions to guarantee the QoS of ground users as the users move.…”