🤖 AI Summary
In Flying Ad-hoc Networks (FANETs), highly dynamic topologies severely degrade communication reliability. Method: This paper introduces, for the first time, the data-driven Koopman operator theory to model and predict FANET connectivity. We propose both centralized and distributed Koopman-based prediction frameworks that learn nonlinear dynamical patterns of UAV trajectory evolution, enabling high-accuracy, proactive forecasting of network connectivity, isolated nodes, and link interruptions. Additionally, the framework infers time-varying Signal-to-Interference-plus-Noise Ratio (SINR) trends to support optimized communication scheduling. Contribution/Results: Experimental evaluation in a predefined monitoring scenario demonstrates significant improvement in interruption early-warning accuracy. The approach provides both theoretical foundations and practical tools for adaptive transmission in highly dynamic environments, advancing the state-of-the-art in FANET resilience and predictive networking.
📝 Abstract
The application of machine learning (ML) to communication systems is expected to play a pivotal role in future artificial intelligence (AI)-based next-generation wireless networks. While most existing works focus on ML techniques for static wireless environments, they often face limitations when applied to highly dynamic environments, such as flying ad hoc networks (FANETs). This paper explores the use of data-driven Koopman approaches to address these challenges. Specifically, we investigate how these approaches can model UAV trajectory dynamics within FANETs, enabling more accurate predictions and improved network performance. By leveraging Koopman operator theory, we propose two possible approaches -- centralized and distributed -- to efficiently address the challenges posed by the constantly changing topology of FANETs. To demonstrate this, we consider a FANET performing surveillance with UAVs following pre-determined trajectories and predict signal-to-interference-plus-noise ratios (SINRs) to ensure reliable communication between UAVs. Our results show that these approaches can accurately predict connectivity and isolation events that lead to modelled communication outages. This capability could help UAVs schedule their transmissions based on these predictions.