{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:LXZ6WIMCSCOFV5EXUWPYV2EUUA","short_pith_number":"pith:LXZ6WIMC","schema_version":"1.0","canonical_sha256":"5df3eb2182909c5af497a59f8ae894a038a66729616e6748a05718a3b6bebfa8","source":{"kind":"arxiv","id":"2501.15207","version":1},"attestation_state":"computed","paper":{"title":"Hybrid Near/Far-Field Frequency-Dependent Beamforming via Joint Phase-Time Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.SP","math.IT"],"primary_cat":"cs.IT","authors_text":"Jianhua Mo, Meixia Tao, Shu Sun, Yeyue Cai","submitted_at":"2025-01-25T13:21:27Z","abstract_excerpt":"Joint phase-time arrays (JPTA) emerge as a cost-effective and energy-efficient architecture for frequency-dependent beamforming in wideband communications by utilizing both true-time delay units and phase shifters. This paper exploits the potential of JPTA to simultaneously serve multiple users in both near- and far-field regions with a single radio frequency chain. The goal is to jointly optimize JPTA-based beamforming and subband allocation to maximize overall system performance. To this end, we formulate a system utility maximization problem, including sum-rate maximization and proportional"},"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":"2501.15207","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2025-01-25T13:21:27Z","cross_cats_sorted":["eess.SP","math.IT"],"title_canon_sha256":"67e63fd36988b7303afd2d9aa0c3e4eaf6df20b813168899854505b4aefca4f9","abstract_canon_sha256":"34e82e59bc3d6fceed42e5397ba17a035375459c23cce74f29d825935d5d10ea"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:05:25.726115Z","signature_b64":"JfT8gxZLuAmiuB80mHSlac7aG+1TAD3KPyR78P0vq7kADqn27+3iLFrNCZ7GPrmbWSuzRO26LhpThqHEk7Z8AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5df3eb2182909c5af497a59f8ae894a038a66729616e6748a05718a3b6bebfa8","last_reissued_at":"2026-07-05T10:05:25.725607Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:05:25.725607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Hybrid Near/Far-Field Frequency-Dependent Beamforming via Joint Phase-Time Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.SP","math.IT"],"primary_cat":"cs.IT","authors_text":"Jianhua Mo, Meixia Tao, Shu Sun, Yeyue Cai","submitted_at":"2025-01-25T13:21:27Z","abstract_excerpt":"Joint phase-time arrays (JPTA) emerge as a cost-effective and energy-efficient architecture for frequency-dependent beamforming in wideband communications by utilizing both true-time delay units and phase shifters. This paper exploits the potential of JPTA to simultaneously serve multiple users in both near- and far-field regions with a single radio frequency chain. The goal is to jointly optimize JPTA-based beamforming and subband allocation to maximize overall system performance. To this end, we formulate a system utility maximization problem, including sum-rate maximization and proportional"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.15207","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/2501.15207/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":"2501.15207","created_at":"2026-07-05T10:05:25.725670+00:00"},{"alias_kind":"arxiv_version","alias_value":"2501.15207v1","created_at":"2026-07-05T10:05:25.725670+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.15207","created_at":"2026-07-05T10:05:25.725670+00:00"},{"alias_kind":"pith_short_12","alias_value":"LXZ6WIMCSCOF","created_at":"2026-07-05T10:05:25.725670+00:00"},{"alias_kind":"pith_short_16","alias_value":"LXZ6WIMCSCOFV5EX","created_at":"2026-07-05T10:05:25.725670+00:00"},{"alias_kind":"pith_short_8","alias_value":"LXZ6WIMC","created_at":"2026-07-05T10:05:25.725670+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.01454","citing_title":"FlexLink: Decoupling Control and Data Beams for Next-Generation Wideband Networks","ref_index":23,"is_internal_anchor":false},{"citing_arxiv_id":"2511.11391","citing_title":"SPOT: Single-Shot Positioning via Trainable Near-Field Rainbow Beamforming","ref_index":4,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA","json":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA.json","graph_json":"https://pith.science/api/pith-number/LXZ6WIMCSCOFV5EXUWPYV2EUUA/graph.json","events_json":"https://pith.science/api/pith-number/LXZ6WIMCSCOFV5EXUWPYV2EUUA/events.json","paper":"https://pith.science/paper/LXZ6WIMC"},"agent_actions":{"view_html":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA","download_json":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA.json","view_paper":"https://pith.science/paper/LXZ6WIMC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2501.15207&json=true","fetch_graph":"https://pith.science/api/pith-number/LXZ6WIMCSCOFV5EXUWPYV2EUUA/graph.json","fetch_events":"https://pith.science/api/pith-number/LXZ6WIMCSCOFV5EXUWPYV2EUUA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA/action/storage_attestation","attest_author":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA/action/author_attestation","sign_citation":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA/action/citation_signature","submit_replication":"https://pith.science/pith/LXZ6WIMCSCOFV5EXUWPYV2EUUA/action/replication_record"}},"created_at":"2026-07-05T10:05:25.725670+00:00","updated_at":"2026-07-05T10:05:25.725670+00:00"}