{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SVONEOBT737Q662DMFSXJICPNW","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":"969c48e0996b43ae2ca2521bd52d2c7ed0aee9707bf1d7e45cbfbef1a5e2189a","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-06-30T02:50:42Z","title_canon_sha256":"fff3478f0eddf9d9bdc849c3771cb222df269c169748c1c74514cce02bf98d53"},"schema_version":"1.0","source":{"id":"1807.00114","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.00114","created_at":"2026-05-17T23:55:58Z"},{"alias_kind":"arxiv_version","alias_value":"1807.00114v3","created_at":"2026-05-17T23:55:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.00114","created_at":"2026-05-17T23:55:58Z"},{"alias_kind":"pith_short_12","alias_value":"SVONEOBT737Q","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SVONEOBT737Q662D","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SVONEOBT","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:3d5e726330b1c0d2b3635ae69ea5422ef8671490db48b81bb872ff728e5ebbd3","target":"graph","created_at":"2026-05-17T23:55:58Z","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 paper, the outage behavior and diversity order of the mixture transceiver architecture for multiple-input single-output broadcast channels are analyzed. The mixture scheme groups users with closely-aligned channels and applies superposition coding and successive interference cancellation decoding to each group composed of users with closely-aligned channels, while applying zero-forcing beamforming across semi-orthogonal user groups. In order to enable such analysis, closed-form lower bounds on the achievable rates of a general multiple-input single-output broadcast channel with superpo","authors_text":"Hamid Jafarkhani, Junyeong Seo, Youngchul Sung","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-06-30T02:50:42Z","title":"A High-Diversity Transceiver Design for MISO Broadcast Channels"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00114","kind":"arxiv","version":3},"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":"sha256:7bfd2a0106e01255989fce99d8c7dfffee81a9486aa931449df83dfcaeafadbb","target":"record","created_at":"2026-05-17T23:55:58Z","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":"969c48e0996b43ae2ca2521bd52d2c7ed0aee9707bf1d7e45cbfbef1a5e2189a","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-06-30T02:50:42Z","title_canon_sha256":"fff3478f0eddf9d9bdc849c3771cb222df269c169748c1c74514cce02bf98d53"},"schema_version":"1.0","source":{"id":"1807.00114","kind":"arxiv","version":3}},"canonical_sha256":"955cd23833feff0f7b43616574a04f6dace04a0c6baba622bc53bf001fde6c67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"955cd23833feff0f7b43616574a04f6dace04a0c6baba622bc53bf001fde6c67","first_computed_at":"2026-05-17T23:55:58.308848Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:58.308848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YE61G5X7htwxEf4aLZTIwlLmds8Tw5ZOyutf//GpbnSo+CiefrNUbDXv7T8UcXbzcFQwpODjM2utBZ8Dsf32Aw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:58.309512Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.00114","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7bfd2a0106e01255989fce99d8c7dfffee81a9486aa931449df83dfcaeafadbb","sha256:3d5e726330b1c0d2b3635ae69ea5422ef8671490db48b81bb872ff728e5ebbd3"],"state_sha256":"473e1716b68ff143e19b7d8c11eca1b641633daa3f86f7b64210ed0b9b3833e5"}