{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IJA3WCJYLPYYUD673OOAGRGZKJ","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":"5f9e6ffae5c3d8492cbbf2f5b2cd3d9a5c346051a8f3ce4156ac23bda7142299","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-07-21T00:15:51Z","title_canon_sha256":"51aeeb2884d17187f006a3a07b8ca517593c86d9c47cbf10d0ece0a8b794f8d6"},"schema_version":"1.0","source":{"id":"1707.06724","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06724","created_at":"2026-05-18T00:31:50Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06724v3","created_at":"2026-05-18T00:31:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06724","created_at":"2026-05-18T00:31:50Z"},{"alias_kind":"pith_short_12","alias_value":"IJA3WCJYLPYY","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IJA3WCJYLPYYUD67","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IJA3WCJY","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:87bc51987549b9806f4a9fe0c5c1104d7ff9f57762c2b253ef1024a3b977161d","target":"graph","created_at":"2026-05-18T00:31:50Z","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":"Consider a full-duplex (FD) multiuser system where an FD base station (BS) is designed to simultaneously serve both downlink users and uplink users in the presence of half-duplex eavesdroppers (Eves). Our problem is to maximize the minimum secrecy rate (SR) among all legitimate users by proposing a novel user grouping method, where information signals at the FD-BS are accompanied with artificial noise to degrade the Eves' channel. The SR problem has a highly nonconcave and nonsmooth objective, subject to nonconvex constraints due to coupling between the optimization variables. Nevertheless, we","authors_text":"Hieu V. Nguyen, Octavia A. Dobre, Oh-Soon Shin, Van-Dinh Nguyen","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-07-21T00:15:51Z","title":"On the Design of Secure Full-Duplex Multiuser Systems under User Grouping Method"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06724","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":"sha256:1a19d2af4889b0a38568a617097bdeb092c6c58b010430382eb6d1a621510a9e","target":"record","created_at":"2026-05-18T00:31:50Z","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":"5f9e6ffae5c3d8492cbbf2f5b2cd3d9a5c346051a8f3ce4156ac23bda7142299","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-07-21T00:15:51Z","title_canon_sha256":"51aeeb2884d17187f006a3a07b8ca517593c86d9c47cbf10d0ece0a8b794f8d6"},"schema_version":"1.0","source":{"id":"1707.06724","kind":"arxiv","version":3}},"canonical_sha256":"4241bb09385bf18a0fdfdb9c0344d95269d99b1e46da014c1e5f6b515406132c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4241bb09385bf18a0fdfdb9c0344d95269d99b1e46da014c1e5f6b515406132c","first_computed_at":"2026-05-18T00:31:50.690944Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:50.690944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Pf6Qto/0174Tzea4NOBYx6pkpvEU3W3DsD5fgOxGmDJAblJM/t6cV/u1795KMBfvowael4YL5Nn20Twioo32BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:50.691421Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.06724","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a19d2af4889b0a38568a617097bdeb092c6c58b010430382eb6d1a621510a9e","sha256:87bc51987549b9806f4a9fe0c5c1104d7ff9f57762c2b253ef1024a3b977161d"],"state_sha256":"4a995ced3dbdb574fbee8fd1982c45e7ade1fea2f5c99ee0d8cd921f2ec53279"}