SPRLP: Spatial-aware Pathfinding Routing for Aeronautical Ad-Hoc Networks based on Location Prediction

The global aviation industry's swift expansion is nearing the capacity limits of civil aviation communications system, with transoceanic flights being particularly affected. To counter these challenges, we propose the Spatial-aware Pathfinding Routing based on Location Prediction (SPRLP) for aeronautical ad-hoc networks (AANET). SPRLP addresses the unique challenges of AANET, such as vast network space, low node density, node mobility, dynamic topology, and bandwidth constraints. It enhances communication efficiency and reliability by combining packet transmission time with predicted neighbor locations to mitigate transmission interruptions. The routing algorithm incorporates aircraft position predictions, flight paths, and node congestion to establish stable and efficient communication paths within the aviation network. Additionally, an adaptive beacon interval mechanism is introduced to minimize routing overhead. Simulations using OMNeT++ demonstrate that SPRLP significantly outperforms other Mobile Ad-Hoc Network routing protocols in terms of efficiency and reliability.