@article{optimizationformasteruavpoweredauxiliary,
  title = {Optimization for Master-UAV-powered Auxiliary-Aerial-IRS-assisted IoT Networks: An Option-based Multi-agent Hierarchical Deep Reinforcement Learning Approach},
  author = {Jingren Xu and Xin Kang and Ronghaixiang Zhang and Ying-Chang Liang and Sumei Sun},
  year = {2021},
  eprint = {2112.10630},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2112.10630v1},
}