@misc{sekander2017multi,
  title={Multi-tier Drone Architecture for 5G/B5G Cellular Networks: Challenges, Trends, and Prospects},
  author={Silvia Sekander and Hina Tabassum and Ekram Hossain},
  year={2017},
  eprint={1711.08407},
  archivePrefix={arXiv},
  primaryClass={cs.NI},
  url={https://arxiv.org/abs/1711.08407}
}