Optimal Continuous Trajectory Design for UAV-Assisted Reliable Communication Operating with Finite Blocklength Codes

Konferenz: European Wireless 2022 - 27th European Wireless Conference
19.09.2022 - 21.09.2022 in Dresden, Germany

Tagungsband: European Wireless 2022

Seiten: 6Sprache: EnglischTyp: PDF

Autoren:
Yuan, Xiaopeng; Hu, Yulin; Wen, Xuan (School of Electronic Information, Wuhan University, China & Chair of Information Theory and Data Analytics, RWTH Aachen University, Germany)
Petrova, Marina (Mobile Communications and Computing Research Area, RWTH Aachen University, Germany)
Schmeink, Anke (Chair of Information Theory and Data Analytics, RWTH Aachen University, Germany)

Inhalt:
In this paper, we consider an unmanned aerial vehicle (UAV) assisted low latency communication scenario with a single ground user. We assume the UAV operates at a fixed altitude and has fixed starting and ending points for providing the low latency service to the user. Within the finite blocklength (FBL) regime and based on a practical probabilistic line-of-sight (LoS) model, we formulate an achievable throughput maximization problem under a reliability constraint. With a given UAV operation period, we target at optimizing the continuous UAV trajectory. To optimally address the problem, we particularly define an artificial potential field (APF) and correspondingly transform the UAV trajectory design problem to a mechanical problem for optimizing the mechanical rope shape, which can be efficiently solved based on the physical principles for equilibrium state. Afterwards, the optimal UAV trajectory is equivalently reconstructed from the optimal rope solution, while the optimality is reserved. Our proposed solution is finally validated via simulations.