Adaptive Compressed Sensing Differential Privacy Federated Learning Based on Orbital Spatiotemporal Characteristics in Space-Air-Ground Networks.

A practically significant extension of ACDP-FL is to align the framework with 3GPP NTN protocols, particularly the random access procedures (RACH), timing advance adjustments, and resource allocation mechanisms defined for satellite-UE links.

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As the compression ratio decreases, the communication reduction effect of the adaptive strategy shows an increasing trend, from 6.2% improvement at high compression ratio (0.8) to 15.3% at low compression ratio (0.2).

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