{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:XUIQVQCNEUNRIPJFVYICS2MSOB","short_pith_number":"pith:XUIQVQCN","schema_version":"1.0","canonical_sha256":"bd110ac04d251b143d25ae10296992704731bf8b3570f6c6a402f73626ffdaa1","source":{"kind":"arxiv","id":"1810.05389","version":1},"attestation_state":"computed","paper":{"title":"Frequency Synchronization for Uplink Massive MIMO with Adaptive MUI Suppression in Angle-domain","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Feifei Gao, Geoffrey Ye Li, Weile Zhang, Yinghao Ge","submitted_at":"2018-10-12T07:52:26Z","abstract_excerpt":"In this paper, we develop a novel angle-domain adaptive filtering (ADAF)-based frequency synchronization method for the uplink of a massive multiple-input multiple-output (MIMO) multiuser network, which is applicable for users with either separate or overlapped angle-of-arrival (AoA) regions. For each user, we first introduce the angle-constraining matrix (ACM), which consists of a set of selected match-filter (MF) beamformers pointing to the AoAs of the interested user. Then, the adaptive beamformer can be acquired by appropriately designing the ADAF vectors. Such beamformer can achieve two-s"},"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":"1810.05389","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-10-12T07:52:26Z","cross_cats_sorted":[],"title_canon_sha256":"8ca8cec93abfa1e08eabb7aaa5210d5b3c38001253dae280f8f675d43857ada4","abstract_canon_sha256":"24cd7b109fb98e45e59ff7682cfde2869fa71f1d8a40538f804b9ebc6441f719"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:23.479156Z","signature_b64":"VBqJ3NXNU3sWTU3FH8eOEUPPGhH75qRrhN/wZXBnqHVG/0lAFsQWMpKzbV0LMtIr+B7gk9Vb73ntH07MNjGNCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bd110ac04d251b143d25ae10296992704731bf8b3570f6c6a402f73626ffdaa1","last_reissued_at":"2026-05-17T23:50:23.478642Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:23.478642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Frequency Synchronization for Uplink Massive MIMO with Adaptive MUI Suppression in Angle-domain","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Feifei Gao, Geoffrey Ye Li, Weile Zhang, Yinghao Ge","submitted_at":"2018-10-12T07:52:26Z","abstract_excerpt":"In this paper, we develop a novel angle-domain adaptive filtering (ADAF)-based frequency synchronization method for the uplink of a massive multiple-input multiple-output (MIMO) multiuser network, which is applicable for users with either separate or overlapped angle-of-arrival (AoA) regions. For each user, we first introduce the angle-constraining matrix (ACM), which consists of a set of selected match-filter (MF) beamformers pointing to the AoAs of the interested user. Then, the adaptive beamformer can be acquired by appropriately designing the ADAF vectors. Such beamformer can achieve two-s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.05389","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":"1810.05389","created_at":"2026-05-17T23:50:23.478725+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.05389v1","created_at":"2026-05-17T23:50:23.478725+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.05389","created_at":"2026-05-17T23:50:23.478725+00:00"},{"alias_kind":"pith_short_12","alias_value":"XUIQVQCNEUNR","created_at":"2026-05-18T12:33:01.666342+00:00"},{"alias_kind":"pith_short_16","alias_value":"XUIQVQCNEUNRIPJF","created_at":"2026-05-18T12:33:01.666342+00:00"},{"alias_kind":"pith_short_8","alias_value":"XUIQVQCN","created_at":"2026-05-18T12:33:01.666342+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/XUIQVQCNEUNRIPJFVYICS2MSOB","json":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB.json","graph_json":"https://pith.science/api/pith-number/XUIQVQCNEUNRIPJFVYICS2MSOB/graph.json","events_json":"https://pith.science/api/pith-number/XUIQVQCNEUNRIPJFVYICS2MSOB/events.json","paper":"https://pith.science/paper/XUIQVQCN"},"agent_actions":{"view_html":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB","download_json":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB.json","view_paper":"https://pith.science/paper/XUIQVQCN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.05389&json=true","fetch_graph":"https://pith.science/api/pith-number/XUIQVQCNEUNRIPJFVYICS2MSOB/graph.json","fetch_events":"https://pith.science/api/pith-number/XUIQVQCNEUNRIPJFVYICS2MSOB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB/action/storage_attestation","attest_author":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB/action/author_attestation","sign_citation":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB/action/citation_signature","submit_replication":"https://pith.science/pith/XUIQVQCNEUNRIPJFVYICS2MSOB/action/replication_record"}},"created_at":"2026-05-17T23:50:23.478725+00:00","updated_at":"2026-05-17T23:50:23.478725+00:00"}