{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:TMMEDJQZD64CMRPHRHUT2CAX3T","short_pith_number":"pith:TMMEDJQZ","schema_version":"1.0","canonical_sha256":"9b1841a6191fb82645e789e93d0817dcec1e1a6f987920b4fcfe1a17ec7a4ae0","source":{"kind":"arxiv","id":"1406.0049","version":1},"attestation_state":"computed","paper":{"title":"Ergodic Capacity Comparison of Different Relay Precoding Schemes in Dual-Hop AF Systems with Co-Channel Interference","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Caijun Zhong, Chau Yuen, Guangxu Zhu, Himal A. Suraweera, Rui Yin, Zhaoyang Zhang","submitted_at":"2014-05-31T05:37:00Z","abstract_excerpt":"In this paper, we analyze the ergodic capacity of a dual-hop amplify-and-forward relaying system where the relay is equipped with multiple antennas and subject to co-channel interference (CCI) and the additive white Gaussian noise. Specifically, we consider three heuristic precoding schemes, where the relay first applies the 1) maximal-ratio combining (MRC) 2) zero-forcing (ZF) 3) minimum mean-squared error (MMSE) principle to combine the signal from the source, and then steers the transformed signal towards the destination with the maximum ratio transmission (MRT) technique. For the MRC/MRT a"},"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":"1406.0049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-05-31T05:37:00Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"00ac00ba7b3b64caff8dc16c52835928a37b1670d84d3595a0dcc959d83e84b5","abstract_canon_sha256":"3f8bf58c54c0800879decd308857397b0a9cd76170735eb5350865025cd9af52"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:50:41.948690Z","signature_b64":"gC7rxlmrJkizaKLP/POKY/I5PdfrJZOhUZ8m03eJAMmJ+Cny3RuqzpzfKIY2zXiZadP0yN3xjUDJGDC798gXCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b1841a6191fb82645e789e93d0817dcec1e1a6f987920b4fcfe1a17ec7a4ae0","last_reissued_at":"2026-05-18T02:50:41.948129Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:50:41.948129Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ergodic Capacity Comparison of Different Relay Precoding Schemes in Dual-Hop AF Systems with Co-Channel Interference","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Caijun Zhong, Chau Yuen, Guangxu Zhu, Himal A. Suraweera, Rui Yin, Zhaoyang Zhang","submitted_at":"2014-05-31T05:37:00Z","abstract_excerpt":"In this paper, we analyze the ergodic capacity of a dual-hop amplify-and-forward relaying system where the relay is equipped with multiple antennas and subject to co-channel interference (CCI) and the additive white Gaussian noise. Specifically, we consider three heuristic precoding schemes, where the relay first applies the 1) maximal-ratio combining (MRC) 2) zero-forcing (ZF) 3) minimum mean-squared error (MMSE) principle to combine the signal from the source, and then steers the transformed signal towards the destination with the maximum ratio transmission (MRT) technique. For the MRC/MRT a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.0049","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":"1406.0049","created_at":"2026-05-18T02:50:41.948223+00:00"},{"alias_kind":"arxiv_version","alias_value":"1406.0049v1","created_at":"2026-05-18T02:50:41.948223+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.0049","created_at":"2026-05-18T02:50:41.948223+00:00"},{"alias_kind":"pith_short_12","alias_value":"TMMEDJQZD64C","created_at":"2026-05-18T12:28:49.207871+00:00"},{"alias_kind":"pith_short_16","alias_value":"TMMEDJQZD64CMRPH","created_at":"2026-05-18T12:28:49.207871+00:00"},{"alias_kind":"pith_short_8","alias_value":"TMMEDJQZ","created_at":"2026-05-18T12:28:49.207871+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/TMMEDJQZD64CMRPHRHUT2CAX3T","json":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T.json","graph_json":"https://pith.science/api/pith-number/TMMEDJQZD64CMRPHRHUT2CAX3T/graph.json","events_json":"https://pith.science/api/pith-number/TMMEDJQZD64CMRPHRHUT2CAX3T/events.json","paper":"https://pith.science/paper/TMMEDJQZ"},"agent_actions":{"view_html":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T","download_json":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T.json","view_paper":"https://pith.science/paper/TMMEDJQZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1406.0049&json=true","fetch_graph":"https://pith.science/api/pith-number/TMMEDJQZD64CMRPHRHUT2CAX3T/graph.json","fetch_events":"https://pith.science/api/pith-number/TMMEDJQZD64CMRPHRHUT2CAX3T/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T/action/storage_attestation","attest_author":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T/action/author_attestation","sign_citation":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T/action/citation_signature","submit_replication":"https://pith.science/pith/TMMEDJQZD64CMRPHRHUT2CAX3T/action/replication_record"}},"created_at":"2026-05-18T02:50:41.948223+00:00","updated_at":"2026-05-18T02:50:41.948223+00:00"}