{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:EXMLACQ2XOGSC2TYVSXQSGKBNW","short_pith_number":"pith:EXMLACQ2","schema_version":"1.0","canonical_sha256":"25d8b00a1abb8d216a78acaf0919416d83ee1a0341516d22ab1a86d3c532d23d","source":{"kind":"arxiv","id":"2506.16184","version":1},"attestation_state":"computed","paper":{"title":"Multigroup Multicast Design for Pinching-Antenna Systems: Waveguide-Division or Waveguide-Multiplexing?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Chongjun Ouyang, Shan Shan, Yong Li, Yuanwei Liu","submitted_at":"2025-06-19T10:03:06Z","abstract_excerpt":"This article addresses the design of multigroup multicast communications in the pinching-antenna system (PASS). A PASS-enabled multigroup transmission framework is proposed to maximize multicast rates under a couple of transmission architectures: waveguide-division (WD) and waveguide-multiplexing (WM). 1) For WD, an element-wise sequential optimization strategy is proposed for pinching beamforming, i.e., optimizing the activated positions of pinching antennas along dielectric waveguides. Meanwhile, a log-sum-exp projected gradient descent algorithm is proposed for transmit power allocation acr"},"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":"2506.16184","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-06-19T10:03:06Z","cross_cats_sorted":[],"title_canon_sha256":"93fd8dae233e414a465e18b582a64fbc00a73e1c4024245a94c96c98dc18adf7","abstract_canon_sha256":"e852446fba4c0fa1fd382b99df17f3e1233296ba71e38793c0174307dde01972"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:24:32.283069Z","signature_b64":"PRjAaRz8JJRJa6H8xeQWeBdgn3NRr8IlqiNT0ZR1SvJ+pzChIqkVMNHu3Qa7HwJl9ExSfAUd6qKrbIy/cwcFDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"25d8b00a1abb8d216a78acaf0919416d83ee1a0341516d22ab1a86d3c532d23d","last_reissued_at":"2026-07-05T11:24:32.282539Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:24:32.282539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multigroup Multicast Design for Pinching-Antenna Systems: Waveguide-Division or Waveguide-Multiplexing?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Chongjun Ouyang, Shan Shan, Yong Li, Yuanwei Liu","submitted_at":"2025-06-19T10:03:06Z","abstract_excerpt":"This article addresses the design of multigroup multicast communications in the pinching-antenna system (PASS). A PASS-enabled multigroup transmission framework is proposed to maximize multicast rates under a couple of transmission architectures: waveguide-division (WD) and waveguide-multiplexing (WM). 1) For WD, an element-wise sequential optimization strategy is proposed for pinching beamforming, i.e., optimizing the activated positions of pinching antennas along dielectric waveguides. Meanwhile, a log-sum-exp projected gradient descent algorithm is proposed for transmit power allocation acr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.16184","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/2506.16184/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":"2506.16184","created_at":"2026-07-05T11:24:32.282609+00:00"},{"alias_kind":"arxiv_version","alias_value":"2506.16184v1","created_at":"2026-07-05T11:24:32.282609+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.16184","created_at":"2026-07-05T11:24:32.282609+00:00"},{"alias_kind":"pith_short_12","alias_value":"EXMLACQ2XOGS","created_at":"2026-07-05T11:24:32.282609+00:00"},{"alias_kind":"pith_short_16","alias_value":"EXMLACQ2XOGSC2TY","created_at":"2026-07-05T11:24:32.282609+00:00"},{"alias_kind":"pith_short_8","alias_value":"EXMLACQ2","created_at":"2026-07-05T11:24:32.282609+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/EXMLACQ2XOGSC2TYVSXQSGKBNW","json":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW.json","graph_json":"https://pith.science/api/pith-number/EXMLACQ2XOGSC2TYVSXQSGKBNW/graph.json","events_json":"https://pith.science/api/pith-number/EXMLACQ2XOGSC2TYVSXQSGKBNW/events.json","paper":"https://pith.science/paper/EXMLACQ2"},"agent_actions":{"view_html":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW","download_json":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW.json","view_paper":"https://pith.science/paper/EXMLACQ2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2506.16184&json=true","fetch_graph":"https://pith.science/api/pith-number/EXMLACQ2XOGSC2TYVSXQSGKBNW/graph.json","fetch_events":"https://pith.science/api/pith-number/EXMLACQ2XOGSC2TYVSXQSGKBNW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW/action/storage_attestation","attest_author":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW/action/author_attestation","sign_citation":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW/action/citation_signature","submit_replication":"https://pith.science/pith/EXMLACQ2XOGSC2TYVSXQSGKBNW/action/replication_record"}},"created_at":"2026-07-05T11:24:32.282609+00:00","updated_at":"2026-07-05T11:24:32.282609+00:00"}