{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:IGDWFUMM7WKYZZ6CBXPT6BN2FD","short_pith_number":"pith:IGDWFUMM","schema_version":"1.0","canonical_sha256":"418762d18cfd958ce7c20ddf3f05ba28cdceed072883247d9fb9e7a15a740342","source":{"kind":"arxiv","id":"1410.3947","version":1},"attestation_state":"computed","paper":{"title":"Low-Complexity Hybrid Precoding in Massive Multiuser MIMO Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Le Liang, Wei Xu, Xiaodai Dong","submitted_at":"2014-10-15T07:16:56Z","abstract_excerpt":"Massive multiple-input multiple-output (MIMO) is envisioned to offer considerable capacity improvement, but at the cost of high complexity of the hardware. In this paper, we propose a low-complexity hybrid precoding scheme to approach the performance of the traditional baseband zero-forcing (ZF) precoding (referred to as full-complexity ZF), which is considered a virtually optimal linear precoding scheme in massive MIMO systems. The proposed hybrid precoding scheme, named phased-ZF (PZF), essentially applies phase-only control at the RF domain and then performs a low-dimensional baseband ZF pr"},"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":"1410.3947","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-10-15T07:16:56Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"586f79a61ac7d4277fd6804792e3a4413bd184367b71edc6772021f64d571562","abstract_canon_sha256":"988a314b4c9513437765ddbfb137963e5379d60025142b35816233e9c69db801"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:36.590988Z","signature_b64":"VTtAPJJoFdMAF13R7fWl4eTObOjgPYfv0rdNklf0/UUsskRyzzzZClWmBpGi6zfWKkiSCYoahUzwh8n+wTAzBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"418762d18cfd958ce7c20ddf3f05ba28cdceed072883247d9fb9e7a15a740342","last_reissued_at":"2026-05-18T00:58:36.590370Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:36.590370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Low-Complexity Hybrid Precoding in Massive Multiuser MIMO Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Le Liang, Wei Xu, Xiaodai Dong","submitted_at":"2014-10-15T07:16:56Z","abstract_excerpt":"Massive multiple-input multiple-output (MIMO) is envisioned to offer considerable capacity improvement, but at the cost of high complexity of the hardware. In this paper, we propose a low-complexity hybrid precoding scheme to approach the performance of the traditional baseband zero-forcing (ZF) precoding (referred to as full-complexity ZF), which is considered a virtually optimal linear precoding scheme in massive MIMO systems. The proposed hybrid precoding scheme, named phased-ZF (PZF), essentially applies phase-only control at the RF domain and then performs a low-dimensional baseband ZF pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.3947","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":""},"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":"1410.3947","created_at":"2026-05-18T00:58:36.590476+00:00"},{"alias_kind":"arxiv_version","alias_value":"1410.3947v1","created_at":"2026-05-18T00:58:36.590476+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.3947","created_at":"2026-05-18T00:58:36.590476+00:00"},{"alias_kind":"pith_short_12","alias_value":"IGDWFUMM7WKY","created_at":"2026-05-18T12:28:33.132498+00:00"},{"alias_kind":"pith_short_16","alias_value":"IGDWFUMM7WKYZZ6C","created_at":"2026-05-18T12:28:33.132498+00:00"},{"alias_kind":"pith_short_8","alias_value":"IGDWFUMM","created_at":"2026-05-18T12:28:33.132498+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/IGDWFUMM7WKYZZ6CBXPT6BN2FD","json":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD.json","graph_json":"https://pith.science/api/pith-number/IGDWFUMM7WKYZZ6CBXPT6BN2FD/graph.json","events_json":"https://pith.science/api/pith-number/IGDWFUMM7WKYZZ6CBXPT6BN2FD/events.json","paper":"https://pith.science/paper/IGDWFUMM"},"agent_actions":{"view_html":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD","download_json":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD.json","view_paper":"https://pith.science/paper/IGDWFUMM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1410.3947&json=true","fetch_graph":"https://pith.science/api/pith-number/IGDWFUMM7WKYZZ6CBXPT6BN2FD/graph.json","fetch_events":"https://pith.science/api/pith-number/IGDWFUMM7WKYZZ6CBXPT6BN2FD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD/action/storage_attestation","attest_author":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD/action/author_attestation","sign_citation":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD/action/citation_signature","submit_replication":"https://pith.science/pith/IGDWFUMM7WKYZZ6CBXPT6BN2FD/action/replication_record"}},"created_at":"2026-05-18T00:58:36.590476+00:00","updated_at":"2026-05-18T00:58:36.590476+00:00"}