{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HO37UA4YUZUPFGGGKF3KTRXCHP","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a17c7b112f9ee9b096b2304e5ae71fc6bebb56161bd8134826c9f46d992f6ea1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-26T16:29:13Z","title_canon_sha256":"a53dbbc0c665efb3eb895f222cca180a70d36932cfbd5273eca3be4cfacd2358"},"schema_version":"1.0","source":{"id":"1901.09241","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.09241","created_at":"2026-05-17T23:55:26Z"},{"alias_kind":"arxiv_version","alias_value":"1901.09241v1","created_at":"2026-05-17T23:55:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09241","created_at":"2026-05-17T23:55:26Z"},{"alias_kind":"pith_short_12","alias_value":"HO37UA4YUZUP","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"HO37UA4YUZUPFGGG","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"HO37UA4Y","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:f657d4460883b2fe6b8af7713cad329279dbc223a80ba00bbc54e279c6e62370","target":"graph","created_at":"2026-05-17T23:55:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"This paper proposes a detailed investigation on the uplink (UL) performance of massive multiple-input-multiple-output (maMIMO) systems employing maximum-ratio combining at the receiver. While most papers in maMIMO literature assume orthogonal frequency-division multiplexing (OFDM), current standards like LTE employ single-carrier (SC) waveform in the UL due to several benefits. We thus perform a systemic comparison between two fundamental schemes: the time-reversal MRC (TRMRC) operating under SC, and the frequency-domain MRC (FDMRC) employed with OFDM. It was recently shown that TRMRC outperfo","authors_text":"Cristiano Panazio, Jose Carlos Marinello, Stefano Tomasin, Taufik Abrao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-26T16:29:13Z","title":"Total Energy Efficiency of TD- and FD-MRC Receivers for Massive MIMO Uplink"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09241","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:baea7378cfbb9520c96717a0f2c6ef5af3661ef54f0b49a97451cf2b8ecb925a","target":"record","created_at":"2026-05-17T23:55:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"a17c7b112f9ee9b096b2304e5ae71fc6bebb56161bd8134826c9f46d992f6ea1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-26T16:29:13Z","title_canon_sha256":"a53dbbc0c665efb3eb895f222cca180a70d36932cfbd5273eca3be4cfacd2358"},"schema_version":"1.0","source":{"id":"1901.09241","kind":"arxiv","version":1}},"canonical_sha256":"3bb7fa0398a668f298c65176a9c6e23bcd821f4846a870a4f87123f40e842413","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3bb7fa0398a668f298c65176a9c6e23bcd821f4846a870a4f87123f40e842413","first_computed_at":"2026-05-17T23:55:26.526760Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:26.526760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vSqc5IoTP1vy35Vf9mzyI05atQ6b1i8f4S44CKdZ5yDl+vSG1YLEIU5RlYfGl+eJwkicyWh/5uSLD8a9d7H1AA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:26.527326Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.09241","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:baea7378cfbb9520c96717a0f2c6ef5af3661ef54f0b49a97451cf2b8ecb925a","sha256:f657d4460883b2fe6b8af7713cad329279dbc223a80ba00bbc54e279c6e62370"],"state_sha256":"a159b41e585fcbc449132cbc2de4462a215fd93a8de947341ad9fba67275ebf8"}