{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:55K64FRESADNWQWUQ6VQNCKBH6","short_pith_number":"pith:55K64FRE","schema_version":"1.0","canonical_sha256":"ef55ee16249006db42d487ab0689413fb345a2255361c879db7bd9a632f900b8","source":{"kind":"arxiv","id":"1203.4844","version":2},"attestation_state":"computed","paper":{"title":"Practical Coding Schemes for Cognitive Overlay Radios","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Andrea Goldsmith, Ernest Kurniawan, Stefano Rini","submitted_at":"2012-03-21T21:39:24Z","abstract_excerpt":"We develop practical coding schemes for the cognitive overlay radios as modeled by the cognitive interference channel, a variation of the classical two user interference channel where one of the transmitters has knowledge of both messages. Inspired by information theoretical results, we develop a coding strategy for each of the three parameter regimes where capacity is known. A key feature of the capacity achieving schemes in these regimes is the joint decoding of both users' codewords, which we accomplish by performing a posteriori probability calculation over a combined trellis. The schemes "},"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":"1203.4844","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-03-21T21:39:24Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"26f1505dc694c09de6b51f8a40abc1d55be4f1ca555f796cc6f3fbf57c21356f","abstract_canon_sha256":"4b0cdd7e9b88fc24e04ae401557f51ffad65247a1860cb759ff4360a9af2578a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:53:54.162794Z","signature_b64":"XJEA62zUqMTKQ6ejLgN8Q8UmQ3+H+LGmWhsaB+LYhLUDP2JKgmAjATEb3JAy5jhEKsyLCck6HOIHaFrdEh6oBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef55ee16249006db42d487ab0689413fb345a2255361c879db7bd9a632f900b8","last_reissued_at":"2026-05-18T03:53:54.162007Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:53:54.162007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Practical Coding Schemes for Cognitive Overlay Radios","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Andrea Goldsmith, Ernest Kurniawan, Stefano Rini","submitted_at":"2012-03-21T21:39:24Z","abstract_excerpt":"We develop practical coding schemes for the cognitive overlay radios as modeled by the cognitive interference channel, a variation of the classical two user interference channel where one of the transmitters has knowledge of both messages. Inspired by information theoretical results, we develop a coding strategy for each of the three parameter regimes where capacity is known. A key feature of the capacity achieving schemes in these regimes is the joint decoding of both users' codewords, which we accomplish by performing a posteriori probability calculation over a combined trellis. The schemes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.4844","kind":"arxiv","version":2},"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":"1203.4844","created_at":"2026-05-18T03:53:54.162145+00:00"},{"alias_kind":"arxiv_version","alias_value":"1203.4844v2","created_at":"2026-05-18T03:53:54.162145+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.4844","created_at":"2026-05-18T03:53:54.162145+00:00"},{"alias_kind":"pith_short_12","alias_value":"55K64FRESADN","created_at":"2026-05-18T12:26:53.410803+00:00"},{"alias_kind":"pith_short_16","alias_value":"55K64FRESADNWQWU","created_at":"2026-05-18T12:26:53.410803+00:00"},{"alias_kind":"pith_short_8","alias_value":"55K64FRE","created_at":"2026-05-18T12:26:53.410803+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/55K64FRESADNWQWUQ6VQNCKBH6","json":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6.json","graph_json":"https://pith.science/api/pith-number/55K64FRESADNWQWUQ6VQNCKBH6/graph.json","events_json":"https://pith.science/api/pith-number/55K64FRESADNWQWUQ6VQNCKBH6/events.json","paper":"https://pith.science/paper/55K64FRE"},"agent_actions":{"view_html":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6","download_json":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6.json","view_paper":"https://pith.science/paper/55K64FRE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1203.4844&json=true","fetch_graph":"https://pith.science/api/pith-number/55K64FRESADNWQWUQ6VQNCKBH6/graph.json","fetch_events":"https://pith.science/api/pith-number/55K64FRESADNWQWUQ6VQNCKBH6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6/action/storage_attestation","attest_author":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6/action/author_attestation","sign_citation":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6/action/citation_signature","submit_replication":"https://pith.science/pith/55K64FRESADNWQWUQ6VQNCKBH6/action/replication_record"}},"created_at":"2026-05-18T03:53:54.162145+00:00","updated_at":"2026-05-18T03:53:54.162145+00:00"}