TY - JOUR AU - Kiet, Tran Anh AU - Binh, Dang Thien AU - Phuong, Dang Hoai AU - Hieu, Ho Phan AU - Hung, Vo Trung PY - 2021/12/31 TI - Joint UAV Trajectory and Data Demand for Scheduling in Wireless Sensor Networks JF - Journal of Science and Technology: Issue on Information and Communications Technology; Vol 19 No 12.2 (2021): Volume 19, Number 12.2, 2021DO - 10.31130/ict-ud.2021.148 KW - N2 - Energy reduction for sireless sensor networks (WSNs) is considered in many works. Sensor scheduling for data collection where the sensors in a WSN are set to wake-up and sleeping mode is a promising candidate. Unmanned aerial vehicle (UAV) utilizing the mobility is investigated to support the data collection for WSNs. This paper proposes a novel system and timing model where a UAV flies to hover at sensors and collect the sensed data. Therefore, a design problem for operation time minimization is established as a combination problem. To overcome the challenge, we propose a heuristic search method to find the trajectory of UAV. The numerical results demonstrate that the proposed method outperforms the random one. UR - http://ict.jst.udn.vn/index.php/jst/article/view/148