{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:MHTVAUM4ADGQGBRA5SO4EAIHB4","short_pith_number":"pith:MHTVAUM4","schema_version":"1.0","canonical_sha256":"61e750519c00cd030620ec9dc201070f2f3be403ea4f16c9f7ec5e5953982e04","source":{"kind":"arxiv","id":"1409.5932","version":1},"attestation_state":"computed","paper":{"title":"Robust Multi-Branch Tomlinson-Harashima Precoding in Cooperative MIMO Relay Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"L. Zhang, M. Zhao, R. C. de Lamare, Y. Cai","submitted_at":"2014-09-21T02:38:02Z","abstract_excerpt":"This paper proposes the design of robust transceivers with Tomlinson-Harashima precoding (THP) for multiple-input multiple-output (MIMO) relay systems with amplify-and-forward (AF) protocols based on a multi-branch (MB) strategy. The MB strategy employs successive interference cancellation (SIC) on several parallel branches which are equipped with different ordering patterns so that each branch produces transmit signals by exploiting a certain ordering pattern. For each parallel branch, the proposed robust nonlinear transceiver design consists of THP at the source along with a linear precoder "},"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":"1409.5932","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-09-21T02:38:02Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"2315842a581b7b46609de63ea4008be40d31755d0fbef86637998f1227c9b887","abstract_canon_sha256":"4268f51e4200ffae1a347464814b9acce2ec38373531ca580a8eac304837a355"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:42:14.112252Z","signature_b64":"1UiUBwexmIdrk6Wv2Ncu4JoYn2q+D4UhDAWCSX9n5zJiKvrZg1fykdvFlFF2T9jzNhWE+NIbzVtUi1iaMgqIDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61e750519c00cd030620ec9dc201070f2f3be403ea4f16c9f7ec5e5953982e04","last_reissued_at":"2026-05-18T02:42:14.111814Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:42:14.111814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Robust Multi-Branch Tomlinson-Harashima Precoding in Cooperative MIMO Relay Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"L. Zhang, M. Zhao, R. C. de Lamare, Y. Cai","submitted_at":"2014-09-21T02:38:02Z","abstract_excerpt":"This paper proposes the design of robust transceivers with Tomlinson-Harashima precoding (THP) for multiple-input multiple-output (MIMO) relay systems with amplify-and-forward (AF) protocols based on a multi-branch (MB) strategy. The MB strategy employs successive interference cancellation (SIC) on several parallel branches which are equipped with different ordering patterns so that each branch produces transmit signals by exploiting a certain ordering pattern. For each parallel branch, the proposed robust nonlinear transceiver design consists of THP at the source along with a linear precoder "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.5932","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":"1409.5932","created_at":"2026-05-18T02:42:14.111883+00:00"},{"alias_kind":"arxiv_version","alias_value":"1409.5932v1","created_at":"2026-05-18T02:42:14.111883+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.5932","created_at":"2026-05-18T02:42:14.111883+00:00"},{"alias_kind":"pith_short_12","alias_value":"MHTVAUM4ADGQ","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_16","alias_value":"MHTVAUM4ADGQGBRA","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_8","alias_value":"MHTVAUM4","created_at":"2026-05-18T12:28:38.356838+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/MHTVAUM4ADGQGBRA5SO4EAIHB4","json":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4.json","graph_json":"https://pith.science/api/pith-number/MHTVAUM4ADGQGBRA5SO4EAIHB4/graph.json","events_json":"https://pith.science/api/pith-number/MHTVAUM4ADGQGBRA5SO4EAIHB4/events.json","paper":"https://pith.science/paper/MHTVAUM4"},"agent_actions":{"view_html":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4","download_json":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4.json","view_paper":"https://pith.science/paper/MHTVAUM4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1409.5932&json=true","fetch_graph":"https://pith.science/api/pith-number/MHTVAUM4ADGQGBRA5SO4EAIHB4/graph.json","fetch_events":"https://pith.science/api/pith-number/MHTVAUM4ADGQGBRA5SO4EAIHB4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4/action/storage_attestation","attest_author":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4/action/author_attestation","sign_citation":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4/action/citation_signature","submit_replication":"https://pith.science/pith/MHTVAUM4ADGQGBRA5SO4EAIHB4/action/replication_record"}},"created_at":"2026-05-18T02:42:14.111883+00:00","updated_at":"2026-05-18T02:42:14.111883+00:00"}