A Predictive On-Demand Placement of UAV Base Stations Using Echo State Network
Haoran Peng, Chao Chen, Chuan-Chi Lai, Li-Chun Wang, Zhu Han

TL;DR
This paper presents a framework using Echo State Networks to predict user trajectories and optimize UAV base station repositioning, enhancing service continuity and reducing energy costs in dynamic scenarios.
Contribution
It introduces a novel ESN-based prediction method combined with an energy-efficient matching scheme for UAV-BS placement in dynamic environments.
Findings
High prediction accuracy of user trajectories
Energy-efficient UAV-BS repositioning achieved
Effective real-world dataset validation
Abstract
The unmanned aerial vehicles base stations (UAV-BSs) have great potential in being widely used in many dynamic application scenarios. In those scenarios, the movements of served user equipments (UEs) are inevitable, so the UAV-BSs needs to be re-positioned dynamically for providing seamless services. In this paper, we propose a system framework consisting of UEs clustering, UAV-BS placement, UEs trajectories prediction, and UAV-BS reposition matching scheme, to serve the UEs seamlessly as well as minimize the energy cost of UAV-BSs' reposition trajectories. An Echo State Network (ESN) based algorithm for predicting the future trajectories of UEs and a Kuhn-Munkres-based algorithm for finding the energy-efficient reposition trajectories of UAV-BSs is designed, respectively. We conduct a simulation using a real open dataset for performance validation. The simulation results indicate that…
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