{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:C4NPODRX4XYGC2BVDVXGCHKRQ6","short_pith_number":"pith:C4NPODRX","schema_version":"1.0","canonical_sha256":"171af70e37e5f06168351d6e611d518797d1c5c715dc81ad508eabf8d8d83712","source":{"kind":"arxiv","id":"1902.07542","version":2},"attestation_state":"computed","paper":{"title":"Mode Hopping for Anti-Jamming in Cognitive Radio Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Feifei Gao, Hailin Zhang, Liping Liang, Wenchi Cheng, Zan Li","submitted_at":"2019-02-20T13:08:33Z","abstract_excerpt":"Frequency hopping (FH) is an effective anti-jamming technology in cognitive radio networks (CRNs). However, it is difficult to significantly increase the anti-jamming results because of the growing crowded spectrum in wireless communications. Orbital momentum angular (OAM) provides a new mode dimension for anti-jamming without consuming extra power and frequency resources in CRNs. In this paper, we propose the mode-frequency hopping (MFH) scheme, which jointly uses the mode hopping and the traditional FH scheme for anti-jamming to significantly increase the capacity of secondary users (SUs). W"},"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":"1902.07542","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-02-20T13:08:33Z","cross_cats_sorted":[],"title_canon_sha256":"f7682c297917089668805d128a9910467a5afad2905cb9741b4f2ffdf69d2275","abstract_canon_sha256":"2572a9aae07b08b82326a14478161d026037bceca9f42995bf23ffe9b37d2c73"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:55.682427Z","signature_b64":"CEBktsnxyJqZiTnqyJ8Qpm+gpOHxtcqtEHktAonAc8DSXqhSCL+Y8tmxOR72HzoZQ90Ll3rajFRtQ8Na3Kb9Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"171af70e37e5f06168351d6e611d518797d1c5c715dc81ad508eabf8d8d83712","last_reissued_at":"2026-05-17T23:51:55.681972Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:55.681972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Mode Hopping for Anti-Jamming in Cognitive Radio Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Feifei Gao, Hailin Zhang, Liping Liang, Wenchi Cheng, Zan Li","submitted_at":"2019-02-20T13:08:33Z","abstract_excerpt":"Frequency hopping (FH) is an effective anti-jamming technology in cognitive radio networks (CRNs). However, it is difficult to significantly increase the anti-jamming results because of the growing crowded spectrum in wireless communications. Orbital momentum angular (OAM) provides a new mode dimension for anti-jamming without consuming extra power and frequency resources in CRNs. In this paper, we propose the mode-frequency hopping (MFH) scheme, which jointly uses the mode hopping and the traditional FH scheme for anti-jamming to significantly increase the capacity of secondary users (SUs). W"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.07542","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":"1902.07542","created_at":"2026-05-17T23:51:55.682038+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.07542v2","created_at":"2026-05-17T23:51:55.682038+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.07542","created_at":"2026-05-17T23:51:55.682038+00:00"},{"alias_kind":"pith_short_12","alias_value":"C4NPODRX4XYG","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_16","alias_value":"C4NPODRX4XYGC2BV","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_8","alias_value":"C4NPODRX","created_at":"2026-05-18T12:33:12.712433+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/C4NPODRX4XYGC2BVDVXGCHKRQ6","json":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6.json","graph_json":"https://pith.science/api/pith-number/C4NPODRX4XYGC2BVDVXGCHKRQ6/graph.json","events_json":"https://pith.science/api/pith-number/C4NPODRX4XYGC2BVDVXGCHKRQ6/events.json","paper":"https://pith.science/paper/C4NPODRX"},"agent_actions":{"view_html":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6","download_json":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6.json","view_paper":"https://pith.science/paper/C4NPODRX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.07542&json=true","fetch_graph":"https://pith.science/api/pith-number/C4NPODRX4XYGC2BVDVXGCHKRQ6/graph.json","fetch_events":"https://pith.science/api/pith-number/C4NPODRX4XYGC2BVDVXGCHKRQ6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6/action/storage_attestation","attest_author":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6/action/author_attestation","sign_citation":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6/action/citation_signature","submit_replication":"https://pith.science/pith/C4NPODRX4XYGC2BVDVXGCHKRQ6/action/replication_record"}},"created_at":"2026-05-17T23:51:55.682038+00:00","updated_at":"2026-05-17T23:51:55.682038+00:00"}