@article {29387,
	title = {Drone-Cell Trajectory Planning and Resource Allocation for Highly Mobile Networks: A Hierarchical DRL Approach},
	journal = {IEEE Internet of Things Journal},
	volume = {8},
	year = {2021},
	pages = {9800-9813},
	url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9179787},
	author = {Weisen Shi and Junling Li and Huaqing Wu and Conghao Zhou and Nan Cheng and Xuemin (Sherman) Shen}
}
