Voronoi-Based UAV Flight Method for Non-Uniform User Distribution in Delay-Tolerant Aerial Networks
- Resource Type
- Journal Article
- Authors
- Chedlia BEN NAILA; Hiraku OKADA; Hiroyuki ASANO; Masaaki KATAYAMA
- Source
- IEICE Transactions on Communications. 2022, E105.B(11):1414
- Subject
- Voronoi
delay
delay-tolerant networking (DTN)
unmanned aerial vehicle (UAV)
user distribution
- Language
- English
- ISSN
- 0916-8516
1745-1345
This paper considers an emergency communication system controlling multiple unmanned aerial vehicles (UAVs) in the sky over a large-scale disaster-affected area. This system is based on delay-tolerant networking, and information from ground users is relayed by the UAVs through wireless transmission and the movement of UAVs in a store-and-forward manner. Each UAV moves autonomously according to a predetermined flight method, which uses the positions of other UAVs through communication. In this paper, we propose a new method for UAV flight considering the non-uniformity of user distributions. The method is based on the Voronoi cell using the predicted locations of other UAVs. We evaluate the performance of the proposed method through computer simulations with a non-uniform user distribution generated by a general cluster point process. The simulation results demonstrate the effectiveness of the proposed method.