{"paper":{"title":"ASTRA: Asynchronous Age-Aware Satellite Random Access via Mean-Field Control","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Mean-field control yields an age-threshold policy that lowers age of information in asynchronous satellite random access.","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Aimin Li, Elif Uysal, Sajjad Baghaee, Sayam Chakraborty, Yigit Ince","submitted_at":"2026-05-18T12:12:27Z","abstract_excerpt":"Satellite Internet-of-Things (IoT) enables massive status-update services beyond terrestrial coverage, but grant-free uplink access creates a coupled freshness-control problem: increasing repetition and receiver-side diversity improves a device's capture-SIC opportunities, yet the resulting population congestion degrades network-wide freshness. Existing AoI-aware random-access models often rely on slot-synchronous collisions, fixed delivery probabilities, or scalar transmit-or-wait decisions and therefore cannot capture asynchronous satellite uplinks with capture and SIC. This paper develops a"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The resulting system admits a mean-field equilibrium in which individual optimality and endogenous congestion are mutually consistent. We further prove that the optimal equilibrium policy admits an age-threshold structure. Numerical results show that the proposed policy reduces AoI relative to age-independent baselines.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The population interaction can be formulated as a scalable mean-field MDP in which devices optimize access timing and intensity using only local AoI observations while the delivery success probability depends on each device's repetition-diversity action (abstract).","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Develops a PHY-aware mean-field MDP for asynchronous satellite IoT random access that admits an age-threshold equilibrium policy reducing AoI relative to baselines.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Mean-field control yields an age-threshold policy that lowers age of information in asynchronous satellite random access.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"a9d6e44687fc63f2cfc4a6dcc3d59a89e3f46e19b95d4da9206839fd5601a90b"},"source":{"id":"2605.18282","kind":"arxiv","version":1},"verdict":{"id":"17790fa3-9cc4-4c1f-9d78-ba728ad13853","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T23:58:25.434512Z","strongest_claim":"The resulting system admits a mean-field equilibrium in which individual optimality and endogenous congestion are mutually consistent. We further prove that the optimal equilibrium policy admits an age-threshold structure. Numerical results show that the proposed policy reduces AoI relative to age-independent baselines.","one_line_summary":"Develops a PHY-aware mean-field MDP for asynchronous satellite IoT random access that admits an age-threshold equilibrium policy reducing AoI relative to baselines.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The population interaction can be formulated as a scalable mean-field MDP in which devices optimize access timing and intensity using only local AoI observations while the delivery success probability depends on each device's repetition-diversity action (abstract).","pith_extraction_headline":"Mean-field control yields an age-threshold policy that lowers age of information in asynchronous satellite random access."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.18282/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-19T23:33:35.232849Z","status":"skipped","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T23:21:58.934269Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"4e57792b33733f069d0d2cc071dadaf81c10357142fdd29f019eb722afa31370"},"references":{"count":24,"sample":[{"doi":"","year":2026,"title":"ASTRA: Asynchronous age-aware satellite random access via mean-field control,","work_id":"1f0a633f-2678-40c8-b557-9beb58fa078b","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2019,"title":"Direct-to-satellite IoT – a survey of the state of the art and future research perspectives,","work_id":"c4affa25-97e5-42a9-a797-64c4a01580af","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2021,"title":"Satellite communications in the new space era: A survey and future challenges,","work_id":"38760274-ea43-4424-97be-3f9d6ba565d0","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2007,"title":"Contention resolu- tion diversity slotted ALOHA (CRDSA): An enhanced random access scheme for satellite access packet networks,","work_id":"0bd224f1-9c7f-472d-b186-694d320ca46a","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2011,"title":"Graph-based analysis and optimization of contention resolution diversity slotted ALOHA,","work_id":"92b7f46e-c9c4-4e3c-86dc-0a7bdd287484","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":24,"snapshot_sha256":"cc8d6fac03e18cf6ec0974ada1055b2c22a1819eb25f23991fc550d06c4f1b5c","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}