{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:5XMLCOA2R5NB2OATC3QBUIP5FZ","short_pith_number":"pith:5XMLCOA2","schema_version":"1.0","canonical_sha256":"edd8b1381a8f5a1d381316e01a21fd2e715320f9f11a4abe37f5a1d91af2a9fc","source":{"kind":"arxiv","id":"2604.17938","version":1},"attestation_state":"computed","paper":{"title":"A Novel CSI-RS Reporting Scheme for RIS Optimization in O-RAN-based NextG Networks","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"A CSI-RS reporting scheme supplies complex channel data to enable RIS optimization inside O-RAN networks.","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Ali Fuat Sahin, Ali Gorcin, Ertugrul Basar, Halim Yanikomeroglu, Ibrahim Hokelek, Sefa Kayraklik","submitted_at":"2026-04-20T08:18:47Z","abstract_excerpt":"Reconfigurable intelligent surface (RIS) technology is a promising enabler for next-generation (NextG) wireless systems, capable of dynamically shaping the propagation environment. Integrating RIS within the open radio access network (O-RAN) architecture enables flexible and intelligent control of wireless links. However, practical RIS-assisted operation requires efficient acquisition and reporting of channel state information (CSI) to support real-time control from the base station side. This paper proposes a CSI reference signal (CSI-RS)-based reporting scheme for downlink complex channel in"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":true,"formal_links_present":false},"canonical_record":{"source":{"id":"2604.17938","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SP","submitted_at":"2026-04-20T08:18:47Z","cross_cats_sorted":[],"title_canon_sha256":"76bfe0f93d1bfab982a0a4b808c088fb4c548e1570bb2077340d500a9461679f","abstract_canon_sha256":"c55a7ce82b9ea50e7fa7992c25f07bc28d5029b9102b719d2c73d5a858b7d9e5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-20T01:18:31.609055Z","signature_b64":"JcvkKpsCuSE7m5MdZ1lTw40hI8SzRb/iyiikQBQKJxapMecEK0ekjQu90wQUyCdZPJAXKqJXVf04py/juFT6CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"edd8b1381a8f5a1d381316e01a21fd2e715320f9f11a4abe37f5a1d91af2a9fc","last_reissued_at":"2026-07-20T01:18:31.608125Z","signature_status":"signed_v1","first_computed_at":"2026-07-20T01:18:31.608125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Novel CSI-RS Reporting Scheme for RIS Optimization in O-RAN-based NextG Networks","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"A CSI-RS reporting scheme supplies complex channel data to enable RIS optimization inside O-RAN networks.","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Ali Fuat Sahin, Ali Gorcin, Ertugrul Basar, Halim Yanikomeroglu, Ibrahim Hokelek, Sefa Kayraklik","submitted_at":"2026-04-20T08:18:47Z","abstract_excerpt":"Reconfigurable intelligent surface (RIS) technology is a promising enabler for next-generation (NextG) wireless systems, capable of dynamically shaping the propagation environment. Integrating RIS within the open radio access network (O-RAN) architecture enables flexible and intelligent control of wireless links. However, practical RIS-assisted operation requires efficient acquisition and reporting of channel state information (CSI) to support real-time control from the base station side. This paper proposes a CSI reference signal (CSI-RS)-based reporting scheme for downlink complex channel in"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The proposed framework establishing CCI extraction and CSI-RS reporting procedures is experimentally validated on a real-world testbed integrating an open-source O-RAN system with an RIS prototype operating in the n78 frequency band. Experimental results demonstrate notable improvements in received signal power for both near and far users.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the tailored Hadamard and OMP algorithms integrate cleanly into O-RAN without prohibitive overhead or compatibility issues, and that the single-band testbed results will generalize to other frequencies and deployments.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A new CSI-RS reporting method for complex channel information enables RIS optimization in O-RAN systems, with experimental validation demonstrating improved received signal power.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A CSI-RS reporting scheme supplies complex channel data to enable RIS optimization inside O-RAN networks.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"6a96ea6550e79d340c02285913b5de40e9c46e69ac32dc5169a570d659a0d533"},"source":{"id":"2604.17938","kind":"arxiv","version":1},"verdict":{"id":"2403c8ac-e8da-4d52-82b5-c28f1abe81ef","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-10T04:42:16.394043Z","strongest_claim":"The proposed framework establishing CCI extraction and CSI-RS reporting procedures is experimentally validated on a real-world testbed integrating an open-source O-RAN system with an RIS prototype operating in the n78 frequency band. Experimental results demonstrate notable improvements in received signal power for both near and far users.","one_line_summary":"A new CSI-RS reporting method for complex channel information enables RIS optimization in O-RAN systems, with experimental validation demonstrating improved received signal power.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the tailored Hadamard and OMP algorithms integrate cleanly into O-RAN without prohibitive overhead or compatibility issues, and that the single-band testbed results will generalize to other frequencies and deployments.","pith_extraction_headline":"A CSI-RS reporting scheme supplies complex channel data to enable RIS optimization inside O-RAN networks."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.17938/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_compliance","ran_at":"2026-05-20T04:35:53.940135Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"84e60d729e4b0d3fa03d16ef046c105e0d57e92624e8a24dae6e709cfd011bea"},"references":{"count":17,"sample":[{"doi":"","year":2019,"title":"Wireless communications through reconfigurable intelligent surfaces","work_id":"5252f198-bf28-4d73-a996-10f6c23071af","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2021,"title":"Channel estimation for RIS assisted wire- less communications—part II: An improved solution based on double- structured sparsity","work_id":"3c12641a-0177-4bb5-b486-91ce368c9f49","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2021,"title":"Channel estimation for RIS-empowered multi-user MISO wireless communications","work_id":"32188092-817d-4e28-93f9-f4ab340c020d","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2020,"title":"Intelligent reflecting surface-enhanced OFDM: Channel estimation and reflection optimization","work_id":"c68a7597-8708-47fa-948d-c2cc6ca77760","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2022,"title":"Scalable channel estimation and reflection optimization for reconfigurable intelligent surface-enhanced OFDM sys- tems","work_id":"4e814282-368b-453a-854b-d06b400bfdeb","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":17,"snapshot_sha256":"15c672ab4d50fef6de4bfc8d7c63c5325e33cb18aab13be2bbaf74352c3cedd7","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2604.17938","created_at":"2026-07-20T01:18:31.608576+00:00"},{"alias_kind":"arxiv_version","alias_value":"2604.17938v1","created_at":"2026-07-20T01:18:31.608576+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.17938","created_at":"2026-07-20T01:18:31.608576+00:00"},{"alias_kind":"pith_short_12","alias_value":"5XMLCOA2R5NB","created_at":"2026-07-20T01:18:31.608576+00:00"},{"alias_kind":"pith_short_16","alias_value":"5XMLCOA2R5NB2OAT","created_at":"2026-07-20T01:18:31.608576+00:00"},{"alias_kind":"pith_short_8","alias_value":"5XMLCOA2","created_at":"2026-07-20T01:18:31.608576+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ","json":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ.json","graph_json":"https://pith.science/api/pith-number/5XMLCOA2R5NB2OATC3QBUIP5FZ/graph.json","events_json":"https://pith.science/api/pith-number/5XMLCOA2R5NB2OATC3QBUIP5FZ/events.json","paper":"https://pith.science/paper/5XMLCOA2"},"agent_actions":{"view_html":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ","download_json":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ.json","view_paper":"https://pith.science/paper/5XMLCOA2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2604.17938&json=true","fetch_graph":"https://pith.science/api/pith-number/5XMLCOA2R5NB2OATC3QBUIP5FZ/graph.json","fetch_events":"https://pith.science/api/pith-number/5XMLCOA2R5NB2OATC3QBUIP5FZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ/action/storage_attestation","attest_author":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ/action/author_attestation","sign_citation":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ/action/citation_signature","submit_replication":"https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ/action/replication_record"}},"created_at":"2026-07-20T01:18:31.608576+00:00","updated_at":"2026-07-20T01:18:31.608576+00:00"}