{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:IFII6DEWSXWS56J5VNAQCBWZ5D","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4f235dab16f5d43d0d6187f2363ad6b5b5fa8fa2ee6361d299f8d325a2cdad54","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2020-04-02T15:48:07Z","title_canon_sha256":"e7e598727cedc5e07ed58ca78e1ce71fcf4cc290dfd8e8267f5b32535d062fa0"},"schema_version":"1.0","source":{"id":"2004.01090","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.01090","created_at":"2026-07-05T00:52:24Z"},{"alias_kind":"arxiv_version","alias_value":"2004.01090v1","created_at":"2026-07-05T00:52:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.01090","created_at":"2026-07-05T00:52:24Z"},{"alias_kind":"pith_short_12","alias_value":"IFII6DEWSXWS","created_at":"2026-07-05T00:52:24Z"},{"alias_kind":"pith_short_16","alias_value":"IFII6DEWSXWS56J5","created_at":"2026-07-05T00:52:24Z"},{"alias_kind":"pith_short_8","alias_value":"IFII6DEW","created_at":"2026-07-05T00:52:24Z"}],"graph_snapshots":[{"event_id":"sha256:21954cba80118902eb25cbc49e3e077b462be4af126e0520ad9922342bfb03d0","target":"graph","created_at":"2026-07-05T00:52:24Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2004.01090/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hybrid Automatic ReQuest (HARQ) protocol enables reliable communications in wireless systems. Usually, several parallel streams are sent in successive timeslots following a time-sharing approach. Recently, multi-layer HARQ has been proposed by superposing packets within a timeslot. In this paper, we evaluate the potential of this multi-layer HARQ by playing with some design parameters. We show that a gain in throughput is only obtained at mid-Signal-to-Noise Ratio (SNR).","authors_text":"Alla Khreis, Francesca Bassi, Philippe Ciblat, Pierre Duhamel","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2020-04-02T15:48:07Z","title":"Analysis of Multi-Messages Retransmission Schemes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.01090","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b96d80597b92ac1836da8b1647cc0f77bfb23a8e8b46e1e5beab6419d9dcdd0e","target":"record","created_at":"2026-07-05T00:52:24Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4f235dab16f5d43d0d6187f2363ad6b5b5fa8fa2ee6361d299f8d325a2cdad54","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2020-04-02T15:48:07Z","title_canon_sha256":"e7e598727cedc5e07ed58ca78e1ce71fcf4cc290dfd8e8267f5b32535d062fa0"},"schema_version":"1.0","source":{"id":"2004.01090","kind":"arxiv","version":1}},"canonical_sha256":"41508f0c9695ed2ef93dab410106d9e8d928396745b31bde0c0b68e304e5b5d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41508f0c9695ed2ef93dab410106d9e8d928396745b31bde0c0b68e304e5b5d9","first_computed_at":"2026-07-05T00:52:24.239166Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:52:24.239166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OmqhxifwHNEZMdD5y+rOyi/upFIWg2t9XaqCIvrhb8ulgdk5Ehk8c1IpD9lJ5ElR6/wDZyFYiqiaIy18viUvAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:52:24.239514Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.01090","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b96d80597b92ac1836da8b1647cc0f77bfb23a8e8b46e1e5beab6419d9dcdd0e","sha256:21954cba80118902eb25cbc49e3e077b462be4af126e0520ad9922342bfb03d0"],"state_sha256":"b81e7f433aea536b3a03f01ceb767138cc95185b499e12bcda17691cc0096021"}