著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Tiankui Zhang and Jiayi Lei and Yuanwei Liu and Chunyan Feng and Arumugam Nallanathan,Trajectory Optimization for UAV Emergency Communication With Limited User Equipment Energy: A Safe-DQN Approach,IEEE Transactions on Green Communications and Networking,2473-2400,Institute of Electrical and Electronics Engineers (IEEE),2021-09,5,3,1236-1247,https://cir.nii.ac.jp/crid/1360298342481909632,https://doi.org/10.1109/tgcn.2021.3068333