{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:43IDAFSCGR553HHRR7QD7KI2RV","short_pith_number":"pith:43IDAFSC","schema_version":"1.0","canonical_sha256":"e6d0301642347bdd9cf18fe03fa91a8d62588d1e77a59a89b7be179e0dfb4974","source":{"kind":"arxiv","id":"1810.10718","version":2},"attestation_state":"computed","paper":{"title":"Beamforming Optimization for Intelligent Reflecting Surface with Discrete Phase Shifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT","math.OC"],"primary_cat":"cs.IT","authors_text":"Qingqing Wu, Rui Zhang","submitted_at":"2018-10-25T04:41:24Z","abstract_excerpt":"Intelligent reflecting surface (IRS) is a promising technology for achieving high spectrum efficiency in future wireless networks by leveraging massive low-cost reflecting elements with each reflecting the incident signal with a proper phase shift. However, prior works on IRS are mainly based on the optimization of infinite-resolution phase shifters which are practically infeasible due to hardware imperfections. In contrast, we study in this paper an IRS-aided wireless network, where an IRS with only finite-resolution phase shifter available at each element is deployed to assist in the communi"},"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":"1810.10718","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-10-25T04:41:24Z","cross_cats_sorted":["math.IT","math.OC"],"title_canon_sha256":"997f5ebe7a403879808545150154a46b1051a34fa26196e77dc8f3e0f281df03","abstract_canon_sha256":"74430991f9ac19b0cde8e6c18a2357aebdbb66c0f1e2c28f8a4399a74ac693e3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:15.449245Z","signature_b64":"dDHhlSZeDssimGkXjLH3UaFOnL0ovAyJv+SaROgvYYwmm6nvI+ZFqZH/KBhHxcyBnqFwsFsXnrZ8fevXWJd3Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6d0301642347bdd9cf18fe03fa91a8d62588d1e77a59a89b7be179e0dfb4974","last_reissued_at":"2026-05-18T00:02:15.448600Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:15.448600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Beamforming Optimization for Intelligent Reflecting Surface with Discrete Phase Shifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT","math.OC"],"primary_cat":"cs.IT","authors_text":"Qingqing Wu, Rui Zhang","submitted_at":"2018-10-25T04:41:24Z","abstract_excerpt":"Intelligent reflecting surface (IRS) is a promising technology for achieving high spectrum efficiency in future wireless networks by leveraging massive low-cost reflecting elements with each reflecting the incident signal with a proper phase shift. However, prior works on IRS are mainly based on the optimization of infinite-resolution phase shifters which are practically infeasible due to hardware imperfections. In contrast, we study in this paper an IRS-aided wireless network, where an IRS with only finite-resolution phase shifter available at each element is deployed to assist in the communi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.10718","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1810.10718","created_at":"2026-05-18T00:02:15.448701+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.10718v2","created_at":"2026-05-18T00:02:15.448701+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.10718","created_at":"2026-05-18T00:02:15.448701+00:00"},{"alias_kind":"pith_short_12","alias_value":"43IDAFSCGR55","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_16","alias_value":"43IDAFSCGR553HHR","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_8","alias_value":"43IDAFSC","created_at":"2026-05-18T12:32:05.422762+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"1906.09490","citing_title":"Wireless Communications Through Reconfigurable Intelligent Surfaces","ref_index":79,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV","json":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV.json","graph_json":"https://pith.science/api/pith-number/43IDAFSCGR553HHRR7QD7KI2RV/graph.json","events_json":"https://pith.science/api/pith-number/43IDAFSCGR553HHRR7QD7KI2RV/events.json","paper":"https://pith.science/paper/43IDAFSC"},"agent_actions":{"view_html":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV","download_json":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV.json","view_paper":"https://pith.science/paper/43IDAFSC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.10718&json=true","fetch_graph":"https://pith.science/api/pith-number/43IDAFSCGR553HHRR7QD7KI2RV/graph.json","fetch_events":"https://pith.science/api/pith-number/43IDAFSCGR553HHRR7QD7KI2RV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV/action/storage_attestation","attest_author":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV/action/author_attestation","sign_citation":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV/action/citation_signature","submit_replication":"https://pith.science/pith/43IDAFSCGR553HHRR7QD7KI2RV/action/replication_record"}},"created_at":"2026-05-18T00:02:15.448701+00:00","updated_at":"2026-05-18T00:02:15.448701+00:00"}