Joint Access Authentication and Task Collaboration for Dynamic Cross-Domain Resource Management in Satellite Networks

Low Earth Orbit (LEO) satellite systems provide wide-area Earth coverage and constitute an important component of the integrated space-air-ground network. With the increasing demand for near-data real-time task processing at the near-data end, constructing a reliable resource management solution is crucial to guaranteeing efficient task execution. Considering the frequent networking due to high-speed movement, unbalanced dynamic task allocation, and unknown resource requirements, we propose a hierarchical dynamic cross-domain collaborative resource management architecture considering satellite access. To enable low-cost access authentication over narrowband inter-satellite links, this work proposes a non-interactive privacy-preserving authentication scheme. Each satellite aggregates four committed orbital attributes into one compact proof, which can be verified by multiple authorized satellites within a domain and epoch. Concurrent access requests are handled via verifier-side batch verification of independent proofs. Additionally, considering the imbalance and dynamics of satellite task allocation, a hierarchical resource management scheme combining multi-agent reinforcement learning intra-domain resource allocation and inter-domain early-exit matching game task collaboration is proposed to alleviate the differences in inter-domain task allocation and enable efficient task execution under limited satellite resources. Simulation results show that the proposed scheme has lower overall communication overhead and an improved task completion rate in dynamic scenarios.