{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:N65VFQSBFYJ4GMQPFSZ6DFAAEP","short_pith_number":"pith:N65VFQSB","schema_version":"1.0","canonical_sha256":"6fbb52c2412e13c3320f2cb3e1940023dc23151e313513fd91d99b192d5a0ad5","source":{"kind":"arxiv","id":"1206.6938","version":1},"attestation_state":"computed","paper":{"title":"MIMO Physical Layer Network Coding Based on VBLAST Detection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Canping Nie, Gongbin Qian, Liya Lu, Shengli Zhang","submitted_at":"2012-06-29T04:39:24Z","abstract_excerpt":"For MIMO two-way relay channel, this paper proposes a novel scheme, VBLAST-PNC, to transform the two superimposed packets received by the relay to their network coding form. Different from traditional schemes, which tries to detect each packet before network coding them, VBLAST-PNC detects the summation of the two packets before network coding. In particular, after firstly detecting the second layer signal in 2-by-2 MIMO system with VBLAST, we only cancel part of the detected signal, rather than canceling all the components, from the first layer. Then we directly map the obtained signal, summa"},"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":"1206.6938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-06-29T04:39:24Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"716e0ab2f98bf92d0fc28a86773bd499804a6f98d7e241c8809bf9f5a3371ce3","abstract_canon_sha256":"976a4dcfc1398a0c99009cfb8d4f12a839791d8110c8edbd518dee87244dc3e2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:52:13.461280Z","signature_b64":"PSHEc3OGp19cZbMSVsj5mOB3HgZOEu+PM5qZgK4+tsg2jF9QmAbuH1kzk+i6cHEH9fr4m9MzmeV5d0blbuVdCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fbb52c2412e13c3320f2cb3e1940023dc23151e313513fd91d99b192d5a0ad5","last_reissued_at":"2026-05-18T03:52:13.460496Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:52:13.460496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"MIMO Physical Layer Network Coding Based on VBLAST Detection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Canping Nie, Gongbin Qian, Liya Lu, Shengli Zhang","submitted_at":"2012-06-29T04:39:24Z","abstract_excerpt":"For MIMO two-way relay channel, this paper proposes a novel scheme, VBLAST-PNC, to transform the two superimposed packets received by the relay to their network coding form. Different from traditional schemes, which tries to detect each packet before network coding them, VBLAST-PNC detects the summation of the two packets before network coding. In particular, after firstly detecting the second layer signal in 2-by-2 MIMO system with VBLAST, we only cancel part of the detected signal, rather than canceling all the components, from the first layer. Then we directly map the obtained signal, summa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.6938","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":"1206.6938","created_at":"2026-05-18T03:52:13.460612+00:00"},{"alias_kind":"arxiv_version","alias_value":"1206.6938v1","created_at":"2026-05-18T03:52:13.460612+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.6938","created_at":"2026-05-18T03:52:13.460612+00:00"},{"alias_kind":"pith_short_12","alias_value":"N65VFQSBFYJ4","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_16","alias_value":"N65VFQSBFYJ4GMQP","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_8","alias_value":"N65VFQSB","created_at":"2026-05-18T12:27:16.716162+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/N65VFQSBFYJ4GMQPFSZ6DFAAEP","json":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP.json","graph_json":"https://pith.science/api/pith-number/N65VFQSBFYJ4GMQPFSZ6DFAAEP/graph.json","events_json":"https://pith.science/api/pith-number/N65VFQSBFYJ4GMQPFSZ6DFAAEP/events.json","paper":"https://pith.science/paper/N65VFQSB"},"agent_actions":{"view_html":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP","download_json":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP.json","view_paper":"https://pith.science/paper/N65VFQSB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1206.6938&json=true","fetch_graph":"https://pith.science/api/pith-number/N65VFQSBFYJ4GMQPFSZ6DFAAEP/graph.json","fetch_events":"https://pith.science/api/pith-number/N65VFQSBFYJ4GMQPFSZ6DFAAEP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP/action/storage_attestation","attest_author":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP/action/author_attestation","sign_citation":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP/action/citation_signature","submit_replication":"https://pith.science/pith/N65VFQSBFYJ4GMQPFSZ6DFAAEP/action/replication_record"}},"created_at":"2026-05-18T03:52:13.460612+00:00","updated_at":"2026-05-18T03:52:13.460612+00:00"}