{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:IK3276DHNQMS5IBIVXNIPRL25O","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":"d9fbb833d650dd17e6dbffbbea7c975d67d26088ab16cfedaad43ef7b7dd6dd6","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-01-07T08:03:11Z","title_canon_sha256":"e70598809a78c2938b18828afcfafdf51d3250cdee75d266ba68626ee9d308a5"},"schema_version":"1.0","source":{"id":"1601.01435","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01435","created_at":"2026-05-18T00:58:09Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01435v1","created_at":"2026-05-18T00:58:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01435","created_at":"2026-05-18T00:58:09Z"},{"alias_kind":"pith_short_12","alias_value":"IK3276DHNQMS","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IK3276DHNQMS5IBI","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IK3276DH","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:a1c4a07b1995abd2c0d9649ca97f4e0853d36f73344313042f022a8e20d94acd","target":"graph","created_at":"2026-05-18T00:58:09Z","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, we study simultaneous wireless information and power transfer (SWIPT) in orthogonal frequency division multiple access (OFDMA) systems with the coexistence of information receivers (IRs) and energy receivers (ERs). The IRs are served with best-effort secrecy data and the ERs harvest energy with minimum required harvested power. To enhance the physical layer security for IRs and yet satisfy energy harvesting requirements for ERs, we propose a new frequency domain artificial noise (AN) aided transmission strategy. With the new strategy, we study the optimal resource allocation for","authors_text":"Meng Zhang, Rui Zhang, Yuan Liu","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-01-07T08:03:11Z","title":"Artificial Noise Aided Secrecy Information and Power Transfer in OFDMA Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01435","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:db1abd2133a463141e5e14d7a6bfb51d6001eedfb6539fb40d67a3d490a46e07","target":"record","created_at":"2026-05-18T00:58:09Z","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":"d9fbb833d650dd17e6dbffbbea7c975d67d26088ab16cfedaad43ef7b7dd6dd6","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-01-07T08:03:11Z","title_canon_sha256":"e70598809a78c2938b18828afcfafdf51d3250cdee75d266ba68626ee9d308a5"},"schema_version":"1.0","source":{"id":"1601.01435","kind":"arxiv","version":1}},"canonical_sha256":"42b7aff8676c192ea028adda87c57aeb8f4e7086be84a74cd8efd3b0df6a7ead","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42b7aff8676c192ea028adda87c57aeb8f4e7086be84a74cd8efd3b0df6a7ead","first_computed_at":"2026-05-18T00:58:09.838877Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:09.838877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zgslZutYpn6dwhfko8TNwGkowGCBdlm9cK58Qc6/NhQbCcP1wiGGc5oQ1dcLpQ1ZCLJT3l8CquFnLMMcpevIBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:09.839577Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.01435","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db1abd2133a463141e5e14d7a6bfb51d6001eedfb6539fb40d67a3d490a46e07","sha256:a1c4a07b1995abd2c0d9649ca97f4e0853d36f73344313042f022a8e20d94acd"],"state_sha256":"1a6389cb7da0aca7371b08adf7b03e726e3ef4bd7576bcbbb40e3b9e87008888"}