{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:5LYFHPDKUEZXZSBIW4TWKXVUII","short_pith_number":"pith:5LYFHPDK","schema_version":"1.0","canonical_sha256":"eaf053bc6aa1337cc828b727655eb4423c10b59888aa8815b8edd0da50d99b1b","source":{"kind":"arxiv","id":"1304.7552","version":1},"attestation_state":"computed","paper":{"title":"Adaptive Decision Feedback Reduced-Rank Equalization Based on Joint Iterative Optimization of Adaptive Estimation Algorithms for Multi-Antenna Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Are Hjorungnes, Raimundo Sampaio-Neto, Rodrigo C. de Lamare","submitted_at":"2013-04-29T02:11:05Z","abstract_excerpt":"This paper presents a novel adaptive reduced-rank multi-input-multi-output (MIMO) decision feedback equalization structure based on joint iterative optimization of adaptive estimators. The novel reduced-rank equalization structure consists of a joint iterative optimization of two equalization stages, namely, a projection matrix that performs dimensionality reduction and a reduced-rank estimator that retrieves the desired transmitted symbol. The proposed reduced-rank structure is followed by a decision feedback scheme that is responsible for cancelling the inter-antenna interference caused by t"},"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":"1304.7552","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-04-29T02:11:05Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"8c669116091543851b0c268f3798bf46f0bf64d768ceff67006eb20f2a8955f5","abstract_canon_sha256":"73c4acdda1fe2793491f1a6697a6a9034cfb8e8bece270aff685f063126b6e13"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:26:53.684365Z","signature_b64":"7w1Hk1Baug0fRtceNiltDG/hJvIwuNs0K3TZszhfbKnxl4q5jTQ0XHUiTiWJlA274WTdcbZK6YmUvT6RaC/QCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eaf053bc6aa1337cc828b727655eb4423c10b59888aa8815b8edd0da50d99b1b","last_reissued_at":"2026-05-18T03:26:53.683688Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:26:53.683688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Adaptive Decision Feedback Reduced-Rank Equalization Based on Joint Iterative Optimization of Adaptive Estimation Algorithms for Multi-Antenna Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Are Hjorungnes, Raimundo Sampaio-Neto, Rodrigo C. de Lamare","submitted_at":"2013-04-29T02:11:05Z","abstract_excerpt":"This paper presents a novel adaptive reduced-rank multi-input-multi-output (MIMO) decision feedback equalization structure based on joint iterative optimization of adaptive estimators. The novel reduced-rank equalization structure consists of a joint iterative optimization of two equalization stages, namely, a projection matrix that performs dimensionality reduction and a reduced-rank estimator that retrieves the desired transmitted symbol. The proposed reduced-rank structure is followed by a decision feedback scheme that is responsible for cancelling the inter-antenna interference caused by t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.7552","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":"1304.7552","created_at":"2026-05-18T03:26:53.683803+00:00"},{"alias_kind":"arxiv_version","alias_value":"1304.7552v1","created_at":"2026-05-18T03:26:53.683803+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.7552","created_at":"2026-05-18T03:26:53.683803+00:00"},{"alias_kind":"pith_short_12","alias_value":"5LYFHPDKUEZX","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_16","alias_value":"5LYFHPDKUEZXZSBI","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_8","alias_value":"5LYFHPDK","created_at":"2026-05-18T12:27:34.582898+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/5LYFHPDKUEZXZSBIW4TWKXVUII","json":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII.json","graph_json":"https://pith.science/api/pith-number/5LYFHPDKUEZXZSBIW4TWKXVUII/graph.json","events_json":"https://pith.science/api/pith-number/5LYFHPDKUEZXZSBIW4TWKXVUII/events.json","paper":"https://pith.science/paper/5LYFHPDK"},"agent_actions":{"view_html":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII","download_json":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII.json","view_paper":"https://pith.science/paper/5LYFHPDK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1304.7552&json=true","fetch_graph":"https://pith.science/api/pith-number/5LYFHPDKUEZXZSBIW4TWKXVUII/graph.json","fetch_events":"https://pith.science/api/pith-number/5LYFHPDKUEZXZSBIW4TWKXVUII/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII/action/storage_attestation","attest_author":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII/action/author_attestation","sign_citation":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII/action/citation_signature","submit_replication":"https://pith.science/pith/5LYFHPDKUEZXZSBIW4TWKXVUII/action/replication_record"}},"created_at":"2026-05-18T03:26:53.683803+00:00","updated_at":"2026-05-18T03:26:53.683803+00:00"}