{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3HVH4V3RTC4B3XXNG22FCFNHSS","short_pith_number":"pith:3HVH4V3R","canonical_record":{"source":{"id":"1802.06933","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-02-20T01:59:11Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"0fb2a5ab708af28345c019cecf7cda3022d2fe47a6afe68f50d736804030909f","abstract_canon_sha256":"6569c601ac4672e33b110793fe467ae80074a743ecad733f524e4090380f6dad"},"schema_version":"1.0"},"canonical_sha256":"d9ea7e577198b81ddeed36b45115a7948af5434bf96bedbaa6ad9969af8aedc9","source":{"kind":"arxiv","id":"1802.06933","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06933","created_at":"2026-05-18T00:22:53Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06933v1","created_at":"2026-05-18T00:22:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06933","created_at":"2026-05-18T00:22:53Z"},{"alias_kind":"pith_short_12","alias_value":"3HVH4V3RTC4B","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3HVH4V3RTC4B3XXN","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3HVH4V3R","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3HVH4V3RTC4B3XXNG22FCFNHSS","target":"record","payload":{"canonical_record":{"source":{"id":"1802.06933","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-02-20T01:59:11Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"0fb2a5ab708af28345c019cecf7cda3022d2fe47a6afe68f50d736804030909f","abstract_canon_sha256":"6569c601ac4672e33b110793fe467ae80074a743ecad733f524e4090380f6dad"},"schema_version":"1.0"},"canonical_sha256":"d9ea7e577198b81ddeed36b45115a7948af5434bf96bedbaa6ad9969af8aedc9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:53.950374Z","signature_b64":"Vyx44thleFEg0EGOSHLFP3rvT7WB87N1eO4DBcAAki+5slSvKMxHQgjF218iY9n5V6RIBpGseyZ2qWML4tU3BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9ea7e577198b81ddeed36b45115a7948af5434bf96bedbaa6ad9969af8aedc9","last_reissued_at":"2026-05-18T00:22:53.949972Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:53.949972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.06933","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:22:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7ESp2yVO2e+UeQEPv1uR1f+kmgBr4PBjOBVkS+qBfNBVLT9h2iknMAm6tAnYTPyLjq4r27drkQVGAwraS8R7Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T21:03:27.207528Z"},"content_sha256":"ab46aafa92c5cbee83573c21fbc0f246a5387b8f1d456d2c14fe73f67d4c2f4e","schema_version":"1.0","event_id":"sha256:ab46aafa92c5cbee83573c21fbc0f246a5387b8f1d456d2c14fe73f67d4c2f4e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3HVH4V3RTC4B3XXNG22FCFNHSS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"AMC and HARQ: How to Increase the Throughput","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Abdellatif Benyouss, Benoit Pelletier, Leszek Szczecinski, Mohammed Jabi, Mustapha Benjillali","submitted_at":"2018-02-20T01:59:11Z","abstract_excerpt":"In this work, we consider transmissions over block fading channels and assume that adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARQ) are implemented. Knowing that in high signal-to-noise ratio, the conventional combination of HARQ with AMC is counterproductive from the throughput point of view, we adopt the so-called layer-coded HARQ (L-HARQ). L-HARQ allows consecutive packets to share the channel and preserves a great degree of separation between AMC and HARQ; this makes the encoding and decoding very simple and allows us to use the available/optimized codes. Num"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06933","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:22:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f857/ax5pfoVlpHh4qnb6bKmv4FvT28s/YGoTVPrf4k8A81pAQvtCUnOGy48as3xyCDFt2tn9zpeAGH3BJRwDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T21:03:27.207883Z"},"content_sha256":"c73bac2623b5e149c8cb1f489a502d3e1e06c910b17089bbfcb1774ee07cee30","schema_version":"1.0","event_id":"sha256:c73bac2623b5e149c8cb1f489a502d3e1e06c910b17089bbfcb1774ee07cee30"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3HVH4V3RTC4B3XXNG22FCFNHSS/bundle.json","state_url":"https://pith.science/pith/3HVH4V3RTC4B3XXNG22FCFNHSS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3HVH4V3RTC4B3XXNG22FCFNHSS/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-23T21:03:27Z","links":{"resolver":"https://pith.science/pith/3HVH4V3RTC4B3XXNG22FCFNHSS","bundle":"https://pith.science/pith/3HVH4V3RTC4B3XXNG22FCFNHSS/bundle.json","state":"https://pith.science/pith/3HVH4V3RTC4B3XXNG22FCFNHSS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3HVH4V3RTC4B3XXNG22FCFNHSS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3HVH4V3RTC4B3XXNG22FCFNHSS","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":"6569c601ac4672e33b110793fe467ae80074a743ecad733f524e4090380f6dad","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-02-20T01:59:11Z","title_canon_sha256":"0fb2a5ab708af28345c019cecf7cda3022d2fe47a6afe68f50d736804030909f"},"schema_version":"1.0","source":{"id":"1802.06933","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06933","created_at":"2026-05-18T00:22:53Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06933v1","created_at":"2026-05-18T00:22:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06933","created_at":"2026-05-18T00:22:53Z"},{"alias_kind":"pith_short_12","alias_value":"3HVH4V3RTC4B","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3HVH4V3RTC4B3XXN","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3HVH4V3R","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:c73bac2623b5e149c8cb1f489a502d3e1e06c910b17089bbfcb1774ee07cee30","target":"graph","created_at":"2026-05-18T00:22:53Z","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"},"paper":{"abstract_excerpt":"In this work, we consider transmissions over block fading channels and assume that adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARQ) are implemented. Knowing that in high signal-to-noise ratio, the conventional combination of HARQ with AMC is counterproductive from the throughput point of view, we adopt the so-called layer-coded HARQ (L-HARQ). L-HARQ allows consecutive packets to share the channel and preserves a great degree of separation between AMC and HARQ; this makes the encoding and decoding very simple and allows us to use the available/optimized codes. Num","authors_text":"Abdellatif Benyouss, Benoit Pelletier, Leszek Szczecinski, Mohammed Jabi, Mustapha Benjillali","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-02-20T01:59:11Z","title":"AMC and HARQ: How to Increase the Throughput"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06933","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:ab46aafa92c5cbee83573c21fbc0f246a5387b8f1d456d2c14fe73f67d4c2f4e","target":"record","created_at":"2026-05-18T00:22:53Z","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":"6569c601ac4672e33b110793fe467ae80074a743ecad733f524e4090380f6dad","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-02-20T01:59:11Z","title_canon_sha256":"0fb2a5ab708af28345c019cecf7cda3022d2fe47a6afe68f50d736804030909f"},"schema_version":"1.0","source":{"id":"1802.06933","kind":"arxiv","version":1}},"canonical_sha256":"d9ea7e577198b81ddeed36b45115a7948af5434bf96bedbaa6ad9969af8aedc9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9ea7e577198b81ddeed36b45115a7948af5434bf96bedbaa6ad9969af8aedc9","first_computed_at":"2026-05-18T00:22:53.949972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:53.949972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Vyx44thleFEg0EGOSHLFP3rvT7WB87N1eO4DBcAAki+5slSvKMxHQgjF218iY9n5V6RIBpGseyZ2qWML4tU3BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:53.950374Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.06933","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab46aafa92c5cbee83573c21fbc0f246a5387b8f1d456d2c14fe73f67d4c2f4e","sha256:c73bac2623b5e149c8cb1f489a502d3e1e06c910b17089bbfcb1774ee07cee30"],"state_sha256":"b312912ffa635cc9beab00a4884dba04393ca709b186390b801dd8e8d82dc129"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9tGyZts5XiQUe+eC2DlxAJopCmqN+HMIj6hwtEhXGck5Ew8aug47EM0Dru2T2qC2g5tsu8JncX/XghscWDUdAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T21:03:27.209937Z","bundle_sha256":"6b121d11f062a0177b424e159b8427482682bd980bad0a84d27ccf5f55c74cc6"}}