An Energy-Efficient Opportunistic Routing Protocol Based on Trajectory Prediction for FANETs Sang, Qianqian ; Wu, Honghai ; Xing, Ling ; Ma, Huahong ; Xie, Ping Abstract Publication: IEEE Access Pub Date: 2020 DOI: 10.1109/ACCESS.2020.3032956 Bibcode: 2020IEEEA...8s2009S