{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6EH2TN2CFX5JQRT73LDBWPWW6J","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"238a8cd784b0c7fd027dc10d626d8660f238df4e52ae3acf93a6af962eb83e34","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-16T05:55:06Z","title_canon_sha256":"0d06fd2e3a94b12f50c7c462a0ca3152a781d783d4ee076a8784f73a07058797"},"schema_version":"1.0","source":{"id":"2105.07362","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.07362","created_at":"2026-07-05T02:40:40Z"},{"alias_kind":"arxiv_version","alias_value":"2105.07362v1","created_at":"2026-07-05T02:40:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.07362","created_at":"2026-07-05T02:40:40Z"},{"alias_kind":"pith_short_12","alias_value":"6EH2TN2CFX5J","created_at":"2026-07-05T02:40:40Z"},{"alias_kind":"pith_short_16","alias_value":"6EH2TN2CFX5JQRT7","created_at":"2026-07-05T02:40:40Z"},{"alias_kind":"pith_short_8","alias_value":"6EH2TN2C","created_at":"2026-07-05T02:40:40Z"}],"graph_snapshots":[{"event_id":"sha256:2f092a41fb16c2ced3c0ed905c4f7bb6a017e5bdb3da7232bfe13988d8ae1074","target":"graph","created_at":"2026-07-05T02:40:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2105.07362/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Rate-Splitting Multiple Access (RSMA) has recently appeared as a powerful and robust multiple access and interference management strategy for downlink Multi-user (MU) multi-antenna communications. In this work, we study the precoder design problem for RSMA scheme in downlink MU systems with both perfect and imperfect Channel State Information at the Transmitter (CSIT) and assess the role and benefits of transmitting multiple common streams. Unlike existing works which have considered single-antenna receivers (Multiple-Input Single-Output--MISO), we propose and extend the RSMA framework for mul","authors_text":"Anup Mishra, Bruno Clerckx, Onur Dizdar, Yijie Mao","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-16T05:55:06Z","title":"Rate-Splitting Multiple Access for Downlink Multiuser MIMO: Precoder Optimization and PHY-Layer Design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.07362","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b0c792698d93d6f4975f279a88a209d153a7579c3cb6240011522e5290b12116","target":"record","created_at":"2026-07-05T02:40:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"238a8cd784b0c7fd027dc10d626d8660f238df4e52ae3acf93a6af962eb83e34","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-16T05:55:06Z","title_canon_sha256":"0d06fd2e3a94b12f50c7c462a0ca3152a781d783d4ee076a8784f73a07058797"},"schema_version":"1.0","source":{"id":"2105.07362","kind":"arxiv","version":1}},"canonical_sha256":"f10fa9b7422dfa98467fdac61b3ed6f24db1c10e4b8e5d4a22d4d016bf57a09c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f10fa9b7422dfa98467fdac61b3ed6f24db1c10e4b8e5d4a22d4d016bf57a09c","first_computed_at":"2026-07-05T02:40:40.217067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:40:40.217067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gEbyAMDEAsX4RV5llsbluLoGhAsqbrDiI0HcyUBzq0IVRSxNuR3Ll68rsztAiwpb3aRiGPJR9wBIgpBy4goECw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:40:40.217488Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.07362","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0c792698d93d6f4975f279a88a209d153a7579c3cb6240011522e5290b12116","sha256:2f092a41fb16c2ced3c0ed905c4f7bb6a017e5bdb3da7232bfe13988d8ae1074"],"state_sha256":"93ef59dce640f7d5b0c45d0686521a23fe2d19ba8179a79bb8abfd5e0c9b1e35"}