| Title | Cellular UAV-to-device communications: Joint trajectory, speed, and power optimisation |
| Authors | Liu, Yaqin Wu, Fanyi Wu, Jianjun |
| Affiliation | Peking Univ, Dept Elect, Beijing 100871, Peoples R China |
| Issue Date | Jan-2021 |
| Publisher | IET COMMUNICATIONS |
| Abstract | Unmanned aerial vehicles (UAVs) are envisioned to provide a variety of sensing applications in the cellular systems, which is known as the cellular Internet of UAVs. This paper considers a cellular Internet of UAVs, in which the sensory data collected by UAVs can be transmitted to the base station by cellular communications, or to the corresponding mobile devices directly by overlaying UAV-to-device communications. The authors first propose a joint sensing and transmission protocol to schedule UAV sensing and transmission, and then investigate the energy utility (EU) maximisation problem by jointly optimising the trajectory, speed, and transmit power of UAVs in the system. As this problem is non-convex and difficult to be solved, the authors decouple it into three subproblems , i.e. trajectory optimisation subproblem, speed optimisation subproblem, and transmit power optimisation subproblem. Then, the authors propose a joint trajectory, speed, and transmit power optimisation algorithm to obtain the suboptimal solution of the original problem. Simulation results show that the authors' proposed algorithm can efficiently improve the EU in the system as compared with other benchmark schemes. |
| URI | http://hdl.handle.net/20.500.11897/617516 |
| ISSN | 1751-8628 |
| DOI | 10.1049/cmu2.12104 |
| Indexed | EI SCI(E) |
| Appears in Collections: | 电子学院 |
