GNN-Enhanced Routing in SD-WAN Over Realistic Space–Ground Networks With Constellation Dynamics and Weather-Driven Link Variability
The integration of LEO satellite networks into Software-Defined Wide Area Networks (SD-WANs) enables near-global coverage and low latency, but also introduces challenges due to highly dynamic topologies, capacity-limited satellite access, and time-varying delays. Conventional reactive SD-WAN traffic steering mechanisms...