{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZHO2V3AMDIIQ6F3ZYE7QKGPDI2","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":"51421ded3ebc51af39ce15ee6b2b801b06dbc6d4404692ba736c38cb10245217","cross_cats_sorted":["cs.IT","cs.NI","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2012-07-05T21:47:33Z","title_canon_sha256":"70ff840298539bee16bebe6f02c81609366b6d66ba56fbaeab8996c2a66470ef"},"schema_version":"1.0","source":{"id":"1207.1469","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1469","created_at":"2026-05-18T00:57:56Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1469v1","created_at":"2026-05-18T00:57:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1469","created_at":"2026-05-18T00:57:56Z"},{"alias_kind":"pith_short_12","alias_value":"ZHO2V3AMDIIQ","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZHO2V3AMDIIQ6F3Z","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZHO2V3AM","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:238b7b4ccca7b8016786654b0e39d8559ec10a4f1e6285d51b4738466e87f8ab","target":"graph","created_at":"2026-05-18T00:57:56Z","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":"Knowledge about the location of licensed primary-users (PU) could enable several key features in cognitive radio (CR) networks including improved spatio-temporal sensing, intelligent location-aware routing, as well as aiding spectrum policy enforcement. In this paper we consider the achievable accuracy of PU localization algorithms that jointly utilize received-signal-strength (RSS) and direction-of-arrival (DoA) measurements by evaluating the Cramer-Rao Bound (CRB). Previous works evaluate the CRB for RSS-only and DoA-only localization algorithms separately and assume DoA estimation error var","authors_text":"Danijela Cabric, Jianshu Chen, Jun Wang","cross_cats":["cs.IT","cs.NI","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2012-07-05T21:47:33Z","title":"Cramer-Rao Bounds for Joint RSS/DoA-Based Primary-User Localization in Cognitive Radio Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1469","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:d86767b2bfaff57e410fec2904e83cac22d6d738d1397e4d1c80f3278c5286df","target":"record","created_at":"2026-05-18T00:57:56Z","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":"51421ded3ebc51af39ce15ee6b2b801b06dbc6d4404692ba736c38cb10245217","cross_cats_sorted":["cs.IT","cs.NI","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2012-07-05T21:47:33Z","title_canon_sha256":"70ff840298539bee16bebe6f02c81609366b6d66ba56fbaeab8996c2a66470ef"},"schema_version":"1.0","source":{"id":"1207.1469","kind":"arxiv","version":1}},"canonical_sha256":"c9ddaaec0c1a110f1779c13f0519e346946bfe965d50be454cfbb64576e70910","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9ddaaec0c1a110f1779c13f0519e346946bfe965d50be454cfbb64576e70910","first_computed_at":"2026-05-18T00:57:56.866897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:56.866897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lP459QHr+TwflzmrTdXlNHHZulSHsS8sY/QiHYbGYR1S2/bEDxTgI8mT+0TV7L7qYP8Rk9swfK5yl7i1oQnfCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:56.867423Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.1469","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d86767b2bfaff57e410fec2904e83cac22d6d738d1397e4d1c80f3278c5286df","sha256:238b7b4ccca7b8016786654b0e39d8559ec10a4f1e6285d51b4738466e87f8ab"],"state_sha256":"4dcaebeb211524824c3adcd01d7f69078c44e87c338fceff316fc8a5805d1964"}