{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IKCSUITG5TI7T3SBAJLSFSXKX2","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":"fc88f5ec6c095fe641187668679d4972090eeb1237512aa58d2eb142bfe467a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-12T23:00:30Z","title_canon_sha256":"c7f1fd9c00d4c6be9a8622156bab2b61d6b1ceb5d405699e825841b112c88e11"},"schema_version":"1.0","source":{"id":"1804.04744","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.04744","created_at":"2026-05-18T00:18:35Z"},{"alias_kind":"arxiv_version","alias_value":"1804.04744v1","created_at":"2026-05-18T00:18:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04744","created_at":"2026-05-18T00:18:35Z"},{"alias_kind":"pith_short_12","alias_value":"IKCSUITG5TI7","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IKCSUITG5TI7T3SB","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IKCSUITG","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:a479abe8b6b865728a8a687eac4be59dd0197fc468f027fb312b580faa9f39b6","target":"graph","created_at":"2026-05-18T00:18:35Z","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":"The performance of 5G wireless communication systems, employing Massive-MIMO at millimeter-wave frequencies, is most likely measured only in Over-The-Air (OTA) setups. It is proposed to perform OTA measurements in two limiting environments of Rich Isotropic MultiPath (RIMP) and Random Line-of-Sight (Random-LOS) instead of a typical or representative channel. In the present paper, we present a back-of-the envelope investigation of the impact of scattering on the frequency dependence of the signal fading statistics in the 500 MHz-100 GHz band. We introduce a simple model for a generic scattering","authors_text":"Aidin Razavi, Andr\\'es Alay\\'on Glazunov, Jian Yang, Rob Maaskant","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-12T23:00:30Z","title":"Back-of-the-envelope evaluation of the prevalence of RIMP or LOS propagation as a function of frequency"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04744","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":"sha256:692adb0bc04e71168b629a136ec821a79c0a72898c919c58db5b5ed76a7941ef","target":"record","created_at":"2026-05-18T00:18:35Z","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":"fc88f5ec6c095fe641187668679d4972090eeb1237512aa58d2eb142bfe467a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-12T23:00:30Z","title_canon_sha256":"c7f1fd9c00d4c6be9a8622156bab2b61d6b1ceb5d405699e825841b112c88e11"},"schema_version":"1.0","source":{"id":"1804.04744","kind":"arxiv","version":1}},"canonical_sha256":"42852a2266ecd1f9ee41025722caeabea333e7bf2fc07112fd52973878950ee6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42852a2266ecd1f9ee41025722caeabea333e7bf2fc07112fd52973878950ee6","first_computed_at":"2026-05-18T00:18:35.129742Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:35.129742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u7jAVzOGEl47dgg9LbTvHNh8Wtc1cydVfLnImIT/iHHafPBsRoQzX7bQ3AQMIoUyyUQhlXYEnQXhTR96KnDLBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:35.130344Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.04744","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:692adb0bc04e71168b629a136ec821a79c0a72898c919c58db5b5ed76a7941ef","sha256:a479abe8b6b865728a8a687eac4be59dd0197fc468f027fb312b580faa9f39b6"],"state_sha256":"ee388b14abf9220c31a8a0b6572c928fc6752f05380fe87cfb3305aed165f2c1"}