{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:PQPUQWAZJIOM52BWS6QZF7F2EQ","short_pith_number":"pith:PQPUQWAZ","schema_version":"1.0","canonical_sha256":"7c1f4858194a1ccee83697a192fcba240a88cd74d82d8b56f9dc5b33d522d377","source":{"kind":"arxiv","id":"2403.08371","version":1},"attestation_state":"computed","paper":{"title":"User-Centric Beam Selection and Precoding Design for Coordinated Multiple-Satellite Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Bjorn Ottersten, Duy H. N. Nguyen, Geoffrey Eappen, Jorge L. Gonzalez-Rios, Juan A. Vasquez, Juan C.-M. Duncan, Luis M. Garces-Socarras, Rakesh Palisetty, Symeon Chatzinotas, Vu Nguyen Ha","submitted_at":"2024-03-13T09:32:03Z","abstract_excerpt":"This paper introduces a joint optimization framework for user-centric beam selection and linear precoding (LP) design in a coordinated multiple-satellite (CoMSat) system, employing a Digital-Fourier-Transform-based (DFT) beamforming (BF) technique. Regarding serving users at their target SINRs and minimizing the total transmit power, the scheme aims to efficiently determine satellites for users to associate with and activate the best cluster of beams together with optimizing LP for every satellite-to-user transmission. These technical objectives are first framed as a complex mixed-integer prog"},"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":"2403.08371","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-03-13T09:32:03Z","cross_cats_sorted":[],"title_canon_sha256":"64fc00ef59ca4e4cf590b7b98e4806597bc930718a2651284a777d8c114fe212","abstract_canon_sha256":"297a1ba25883a36a78796775cc5590b6366fc88c90a6ce5a91470f0268e537fa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:55:38.199723Z","signature_b64":"yLCGWWfdf/G0VdJK/s64y4FPfR/eSRXJYjjjSzYYyoFCjFnWjKrAUYfhXoCaR8pWUYGDi+MH286egvIeByJbCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c1f4858194a1ccee83697a192fcba240a88cd74d82d8b56f9dc5b33d522d377","last_reissued_at":"2026-07-05T07:55:38.199247Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:55:38.199247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"User-Centric Beam Selection and Precoding Design for Coordinated Multiple-Satellite Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Bjorn Ottersten, Duy H. N. Nguyen, Geoffrey Eappen, Jorge L. Gonzalez-Rios, Juan A. Vasquez, Juan C.-M. Duncan, Luis M. Garces-Socarras, Rakesh Palisetty, Symeon Chatzinotas, Vu Nguyen Ha","submitted_at":"2024-03-13T09:32:03Z","abstract_excerpt":"This paper introduces a joint optimization framework for user-centric beam selection and linear precoding (LP) design in a coordinated multiple-satellite (CoMSat) system, employing a Digital-Fourier-Transform-based (DFT) beamforming (BF) technique. Regarding serving users at their target SINRs and minimizing the total transmit power, the scheme aims to efficiently determine satellites for users to associate with and activate the best cluster of beams together with optimizing LP for every satellite-to-user transmission. These technical objectives are first framed as a complex mixed-integer prog"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.08371","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/2403.08371/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":"2403.08371","created_at":"2026-07-05T07:55:38.199305+00:00"},{"alias_kind":"arxiv_version","alias_value":"2403.08371v1","created_at":"2026-07-05T07:55:38.199305+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.08371","created_at":"2026-07-05T07:55:38.199305+00:00"},{"alias_kind":"pith_short_12","alias_value":"PQPUQWAZJIOM","created_at":"2026-07-05T07:55:38.199305+00:00"},{"alias_kind":"pith_short_16","alias_value":"PQPUQWAZJIOM52BW","created_at":"2026-07-05T07:55:38.199305+00:00"},{"alias_kind":"pith_short_8","alias_value":"PQPUQWAZ","created_at":"2026-07-05T07:55:38.199305+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/PQPUQWAZJIOM52BWS6QZF7F2EQ","json":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ.json","graph_json":"https://pith.science/api/pith-number/PQPUQWAZJIOM52BWS6QZF7F2EQ/graph.json","events_json":"https://pith.science/api/pith-number/PQPUQWAZJIOM52BWS6QZF7F2EQ/events.json","paper":"https://pith.science/paper/PQPUQWAZ"},"agent_actions":{"view_html":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ","download_json":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ.json","view_paper":"https://pith.science/paper/PQPUQWAZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2403.08371&json=true","fetch_graph":"https://pith.science/api/pith-number/PQPUQWAZJIOM52BWS6QZF7F2EQ/graph.json","fetch_events":"https://pith.science/api/pith-number/PQPUQWAZJIOM52BWS6QZF7F2EQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ/action/storage_attestation","attest_author":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ/action/author_attestation","sign_citation":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ/action/citation_signature","submit_replication":"https://pith.science/pith/PQPUQWAZJIOM52BWS6QZF7F2EQ/action/replication_record"}},"created_at":"2026-07-05T07:55:38.199305+00:00","updated_at":"2026-07-05T07:55:38.199305+00:00"}