{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:3ROXOBFHRWE2VUEOJAKQJ7HTVX","short_pith_number":"pith:3ROXOBFH","schema_version":"1.0","canonical_sha256":"dc5d7704a78d89aad08e481504fcf3addc6edce8ca9d727f0f764a1c21ffc2bb","source":{"kind":"arxiv","id":"1501.02921","version":1},"attestation_state":"computed","paper":{"title":"ACO-OFDM-Specified Recoverable Upper Clipping With Efficient Detection for Optical Wireless Communications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"C. Zhao, H. Zhang, M. Wu, W. Xu, X. You","submitted_at":"2015-01-13T09:09:39Z","abstract_excerpt":"The high peak-to-average-power ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) degrades the performance in optical wireless communication systems. This paper proposes a modified asymmetrically clipped optical OFDM (ACOOFDM) with low PAPR via introducing a recoverable upper-clipping (RoC) procedure. Although some information is clipped by a predetermined peak threshold, the clipped error information is kept and repositioned in our proposed scheme, which is named RoC-ACO-OFDM, instead of simply being dropped in conventional schemes. The proposed method makes full use of the spe"},"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":"1501.02921","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-01-13T09:09:39Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"0f127f96ab5e847914bbea673722b7488bb40b1b8dec7692ecbf20734b141050","abstract_canon_sha256":"0f58e50d45b2a57c95017f12e27863811dbdaac55608e042c82faeaef003afb6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:29:30.908126Z","signature_b64":"0QgFRLtPaucvihOwtAFYkG/3A4z0g5+C+ia9S3uefJ/2XC2QnTcC3EhRlnj6kHNj+de4x3kFt8Ix0Pb6+IkaAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc5d7704a78d89aad08e481504fcf3addc6edce8ca9d727f0f764a1c21ffc2bb","last_reissued_at":"2026-05-18T02:29:30.907631Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:29:30.907631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"ACO-OFDM-Specified Recoverable Upper Clipping With Efficient Detection for Optical Wireless Communications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"C. Zhao, H. Zhang, M. Wu, W. Xu, X. You","submitted_at":"2015-01-13T09:09:39Z","abstract_excerpt":"The high peak-to-average-power ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) degrades the performance in optical wireless communication systems. This paper proposes a modified asymmetrically clipped optical OFDM (ACOOFDM) with low PAPR via introducing a recoverable upper-clipping (RoC) procedure. Although some information is clipped by a predetermined peak threshold, the clipped error information is kept and repositioned in our proposed scheme, which is named RoC-ACO-OFDM, instead of simply being dropped in conventional schemes. The proposed method makes full use of the spe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.02921","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":"1501.02921","created_at":"2026-05-18T02:29:30.907708+00:00"},{"alias_kind":"arxiv_version","alias_value":"1501.02921v1","created_at":"2026-05-18T02:29:30.907708+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.02921","created_at":"2026-05-18T02:29:30.907708+00:00"},{"alias_kind":"pith_short_12","alias_value":"3ROXOBFHRWE2","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"3ROXOBFHRWE2VUEO","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"3ROXOBFH","created_at":"2026-05-18T12:29:02.477457+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/3ROXOBFHRWE2VUEOJAKQJ7HTVX","json":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX.json","graph_json":"https://pith.science/api/pith-number/3ROXOBFHRWE2VUEOJAKQJ7HTVX/graph.json","events_json":"https://pith.science/api/pith-number/3ROXOBFHRWE2VUEOJAKQJ7HTVX/events.json","paper":"https://pith.science/paper/3ROXOBFH"},"agent_actions":{"view_html":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX","download_json":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX.json","view_paper":"https://pith.science/paper/3ROXOBFH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1501.02921&json=true","fetch_graph":"https://pith.science/api/pith-number/3ROXOBFHRWE2VUEOJAKQJ7HTVX/graph.json","fetch_events":"https://pith.science/api/pith-number/3ROXOBFHRWE2VUEOJAKQJ7HTVX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX/action/storage_attestation","attest_author":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX/action/author_attestation","sign_citation":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX/action/citation_signature","submit_replication":"https://pith.science/pith/3ROXOBFHRWE2VUEOJAKQJ7HTVX/action/replication_record"}},"created_at":"2026-05-18T02:29:30.907708+00:00","updated_at":"2026-05-18T02:29:30.907708+00:00"}