{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:QL74PJPKC4BANJNQCQ5BJXZSEI","short_pith_number":"pith:QL74PJPK","schema_version":"1.0","canonical_sha256":"82ffc7a5ea170206a5b0143a14df32223e4315273ec19046fd1f3847f02e6276","source":{"kind":"arxiv","id":"2304.01675","version":1},"attestation_state":"computed","paper":{"title":"Antenna Array Structures for Enhanced Cluster Index Modulation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Asil Koc, Ertugrul Basar, Ibrahim Yildirim, Mahmoud Raeisi, Tho Le-Ngoc","submitted_at":"2023-04-04T10:03:40Z","abstract_excerpt":"This paper investigates the effect of various antenna array structures, i.e., uniform linear array (ULA), uniform rectangular array (URA), uniform circular array (UCA), and concentric circular array (CCA), on cluster index modulation (CIM) enabled massive multiple-input multiple-output (mMIMO) millimeter-wave (mmWave) communications systems. As the CIM technique indexes spatial clusters to convey additional information bits, the different radiation characteristics caused by different array structures can significantly affect system performance. By analyzing the effects of array characteristics"},"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":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2304.01675","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SP","submitted_at":"2023-04-04T10:03:40Z","cross_cats_sorted":[],"title_canon_sha256":"90c258a3290bc1011bc5f81abd9b52947d51f6be0cb1d6c9a59ac28c799d5d41","abstract_canon_sha256":"cc8b76e4b6f639efaad23cc9fe09b4f8caea9b66deab3329a4e75cd501a413b1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:35:07.667279Z","signature_b64":"1LII5oW7a76+i9ziYqqffTWqSAmr1rMsoBd+q5sr6QPBwfIoLeA0OjO2uAjPB42HI+7V1Eg1BR+QZrxH4DCEDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"82ffc7a5ea170206a5b0143a14df32223e4315273ec19046fd1f3847f02e6276","last_reissued_at":"2026-07-05T06:35:07.666707Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:35:07.666707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Antenna Array Structures for Enhanced Cluster Index Modulation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Asil Koc, Ertugrul Basar, Ibrahim Yildirim, Mahmoud Raeisi, Tho Le-Ngoc","submitted_at":"2023-04-04T10:03:40Z","abstract_excerpt":"This paper investigates the effect of various antenna array structures, i.e., uniform linear array (ULA), uniform rectangular array (URA), uniform circular array (UCA), and concentric circular array (CCA), on cluster index modulation (CIM) enabled massive multiple-input multiple-output (mMIMO) millimeter-wave (mmWave) communications systems. As the CIM technique indexes spatial clusters to convey additional information bits, the different radiation characteristics caused by different array structures can significantly affect system performance. By analyzing the effects of array characteristics"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.01675","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2304.01675/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","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":"2304.01675","created_at":"2026-07-05T06:35:07.666774+00:00"},{"alias_kind":"arxiv_version","alias_value":"2304.01675v1","created_at":"2026-07-05T06:35:07.666774+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.01675","created_at":"2026-07-05T06:35:07.666774+00:00"},{"alias_kind":"pith_short_12","alias_value":"QL74PJPKC4BA","created_at":"2026-07-05T06:35:07.666774+00:00"},{"alias_kind":"pith_short_16","alias_value":"QL74PJPKC4BANJNQ","created_at":"2026-07-05T06:35:07.666774+00:00"},{"alias_kind":"pith_short_8","alias_value":"QL74PJPK","created_at":"2026-07-05T06:35:07.666774+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/QL74PJPKC4BANJNQCQ5BJXZSEI","json":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI.json","graph_json":"https://pith.science/api/pith-number/QL74PJPKC4BANJNQCQ5BJXZSEI/graph.json","events_json":"https://pith.science/api/pith-number/QL74PJPKC4BANJNQCQ5BJXZSEI/events.json","paper":"https://pith.science/paper/QL74PJPK"},"agent_actions":{"view_html":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI","download_json":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI.json","view_paper":"https://pith.science/paper/QL74PJPK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2304.01675&json=true","fetch_graph":"https://pith.science/api/pith-number/QL74PJPKC4BANJNQCQ5BJXZSEI/graph.json","fetch_events":"https://pith.science/api/pith-number/QL74PJPKC4BANJNQCQ5BJXZSEI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI/action/storage_attestation","attest_author":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI/action/author_attestation","sign_citation":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI/action/citation_signature","submit_replication":"https://pith.science/pith/QL74PJPKC4BANJNQCQ5BJXZSEI/action/replication_record"}},"created_at":"2026-07-05T06:35:07.666774+00:00","updated_at":"2026-07-05T06:35:07.666774+00:00"}