Wang Bo, Lu Rui, Wan Jinhui, et al. MEO–LEO hierarchical collaborative satellite routing strategy for interactive video services[J/OL]. Journal on Communications, 2026.
DOI:
Wang Bo, Lu Rui, Wan Jinhui, et al. MEO–LEO hierarchical collaborative satellite routing strategy for interactive video services[J/OL]. Journal on Communications, 2026. DOI: 10.11959/j.issn.1000-436x.TXXB260125.
MEO–LEO hierarchical collaborative satellite routing strategy for interactive video services
To meet the requirements of interactive video services in low Earth orbit satellite networks for low latency
low jitter
and session continuity
a hierarchical collaborative routing strategy
termed H-GMRL
was proposed for medium Earth orbit (MEO)–low Earth orbit (LEO) satellite networks to address complex routing decisions and frequent link switching under highly dynamic topologies and spatiotemporally heterogeneous energy conditions. Graph neural networks (GNNs) and Double Deep Q-Network (Double-DQN) were adopted for multi-constraint global path planning
while multi-agent reinforcement learning (MARL) together with a trigger-based smooth switching mechanism was used for local repair. Simulation results show that the proposed strategy reduces the average end-to-end delay by up to 12.1%
decreases delay jitter by up to 45.3%
lowers the packet loss rate by up to 44.8%
and increases the average path time to live (TTL) by up to 25.9%. It provides more stable and continuous support for interactive video services under high-load scenarios.
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