{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:KIPQK3ARTL25HOOFLOCMBX5IFW","short_pith_number":"pith:KIPQK3AR","schema_version":"1.0","canonical_sha256":"521f056c119af5d3b9c55b84c0dfa82d82023e0f309c19ec8d4fd7d4f8a161c0","source":{"kind":"arxiv","id":"1511.04115","version":1},"attestation_state":"computed","paper":{"title":"Joint Spectrum Sensing and Resource Allocation for OFDM-based Transmission with a Cognitive Relay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Bahman Abolhassani, K.P. Subbalakshmi, R. Chandramouli, S. Eman Mahmoodi","submitted_at":"2015-11-12T22:37:15Z","abstract_excerpt":"In this paper, we investigate the joint spectrum sensing and resource allocation problem to maximize throughput capacity of an OFDM-based cognitive radio link with a cognitive relay. By applying a cognitive relay that uses decode and forward (D&F), we achieve more reliable communications, generating less interference (by needing less transmit power) and more diversity gain. In order to account for imperfections in spectrum sensing, the proposed schemes jointly modify energy detector thresholds and allocates transmit powers to all cognitive radio (CR) subcarriers, while simultaneously assigning"},"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":"1511.04115","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-11-12T22:37:15Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"40ac09344d47573b31203a7ebc5d02b7ea5fc933cb4ebb63a5c3d3508fb1f799","abstract_canon_sha256":"d5a9403424edadbfe69e6ef288d62d775815793f24a0bfd1ce8d4ff9a5179135"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:26:59.644564Z","signature_b64":"O3NMurxG+QZ9bfgcVivi1+qgQUE0EoeOv676JP7fMk8W6/gzqa3MvA3TtvyDNEYlz8onm+7B2qSoWcIgt2WfCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"521f056c119af5d3b9c55b84c0dfa82d82023e0f309c19ec8d4fd7d4f8a161c0","last_reissued_at":"2026-05-18T01:26:59.643801Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:26:59.643801Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Joint Spectrum Sensing and Resource Allocation for OFDM-based Transmission with a Cognitive Relay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Bahman Abolhassani, K.P. Subbalakshmi, R. Chandramouli, S. Eman Mahmoodi","submitted_at":"2015-11-12T22:37:15Z","abstract_excerpt":"In this paper, we investigate the joint spectrum sensing and resource allocation problem to maximize throughput capacity of an OFDM-based cognitive radio link with a cognitive relay. By applying a cognitive relay that uses decode and forward (D&F), we achieve more reliable communications, generating less interference (by needing less transmit power) and more diversity gain. In order to account for imperfections in spectrum sensing, the proposed schemes jointly modify energy detector thresholds and allocates transmit powers to all cognitive radio (CR) subcarriers, while simultaneously assigning"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04115","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":"1511.04115","created_at":"2026-05-18T01:26:59.643926+00:00"},{"alias_kind":"arxiv_version","alias_value":"1511.04115v1","created_at":"2026-05-18T01:26:59.643926+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.04115","created_at":"2026-05-18T01:26:59.643926+00:00"},{"alias_kind":"pith_short_12","alias_value":"KIPQK3ARTL25","created_at":"2026-05-18T12:29:27.538025+00:00"},{"alias_kind":"pith_short_16","alias_value":"KIPQK3ARTL25HOOF","created_at":"2026-05-18T12:29:27.538025+00:00"},{"alias_kind":"pith_short_8","alias_value":"KIPQK3AR","created_at":"2026-05-18T12:29:27.538025+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/KIPQK3ARTL25HOOFLOCMBX5IFW","json":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW.json","graph_json":"https://pith.science/api/pith-number/KIPQK3ARTL25HOOFLOCMBX5IFW/graph.json","events_json":"https://pith.science/api/pith-number/KIPQK3ARTL25HOOFLOCMBX5IFW/events.json","paper":"https://pith.science/paper/KIPQK3AR"},"agent_actions":{"view_html":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW","download_json":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW.json","view_paper":"https://pith.science/paper/KIPQK3AR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1511.04115&json=true","fetch_graph":"https://pith.science/api/pith-number/KIPQK3ARTL25HOOFLOCMBX5IFW/graph.json","fetch_events":"https://pith.science/api/pith-number/KIPQK3ARTL25HOOFLOCMBX5IFW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW/action/storage_attestation","attest_author":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW/action/author_attestation","sign_citation":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW/action/citation_signature","submit_replication":"https://pith.science/pith/KIPQK3ARTL25HOOFLOCMBX5IFW/action/replication_record"}},"created_at":"2026-05-18T01:26:59.643926+00:00","updated_at":"2026-05-18T01:26:59.643926+00:00"}