{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:XWU23JBYRKB7YC4GQTCMLESKZX","short_pith_number":"pith:XWU23JBY","schema_version":"1.0","canonical_sha256":"bda9ada4388a83fc0b8684c4c5924acdd9e686b97d7e02905ffa350c16a1db0e","source":{"kind":"arxiv","id":"1707.00227","version":2},"attestation_state":"computed","paper":{"title":"Relationship between Cross-Polarization Discrimination (XPD) and Spatial Correlation in Indoor Small-Cell MIMO Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Chan-Byoung Chae, TaeckKeun Oh, Yae Jee Cho, Yeon-Geun Lim, Yongshik Lee","submitted_at":"2017-07-02T03:00:14Z","abstract_excerpt":"In this letter, we present a correlated channel model for a dual-polarization antenna to omnidirectional antennas in indoor small-cell multiple-input multiple-output (MIMO) systems. In an indoor environment, we confirm that the cross-polarization discrimination (XPD) in the direction of angle-of-departure can be represented as the spatial correlation of the MIMO channel. We also evaluate a dual-polarization antenna-based MIMO channel model and a spatially correlated channel model using a three-dimensional (3D) ray-tracing simulator. Furthermore, we provide the equivalent distance between adjac"},"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":"1707.00227","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-07-02T03:00:14Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"3a5b4184acb47a448399b77fafb0781d2843a228daaa3c942d06f56099512a33","abstract_canon_sha256":"b39cb962a55ea016dea2e7c68e24b6b4759af1d5f2cabab273dfc320607d0edf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:40.672255Z","signature_b64":"g6Soa6oTIMW4bCUq5E6KdCjMdbRdJJ2QSUYsr2EAvoao0gY1bly3QJJfMf/XqCLCAouy/6oseuUQerA8XxwcCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bda9ada4388a83fc0b8684c4c5924acdd9e686b97d7e02905ffa350c16a1db0e","last_reissued_at":"2026-05-18T00:28:40.671556Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:40.671556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Relationship between Cross-Polarization Discrimination (XPD) and Spatial Correlation in Indoor Small-Cell MIMO Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Chan-Byoung Chae, TaeckKeun Oh, Yae Jee Cho, Yeon-Geun Lim, Yongshik Lee","submitted_at":"2017-07-02T03:00:14Z","abstract_excerpt":"In this letter, we present a correlated channel model for a dual-polarization antenna to omnidirectional antennas in indoor small-cell multiple-input multiple-output (MIMO) systems. In an indoor environment, we confirm that the cross-polarization discrimination (XPD) in the direction of angle-of-departure can be represented as the spatial correlation of the MIMO channel. We also evaluate a dual-polarization antenna-based MIMO channel model and a spatially correlated channel model using a three-dimensional (3D) ray-tracing simulator. Furthermore, we provide the equivalent distance between adjac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00227","kind":"arxiv","version":2},"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":"1707.00227","created_at":"2026-05-18T00:28:40.671665+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.00227v2","created_at":"2026-05-18T00:28:40.671665+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.00227","created_at":"2026-05-18T00:28:40.671665+00:00"},{"alias_kind":"pith_short_12","alias_value":"XWU23JBYRKB7","created_at":"2026-05-18T12:31:56.362134+00:00"},{"alias_kind":"pith_short_16","alias_value":"XWU23JBYRKB7YC4G","created_at":"2026-05-18T12:31:56.362134+00:00"},{"alias_kind":"pith_short_8","alias_value":"XWU23JBY","created_at":"2026-05-18T12:31:56.362134+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/XWU23JBYRKB7YC4GQTCMLESKZX","json":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX.json","graph_json":"https://pith.science/api/pith-number/XWU23JBYRKB7YC4GQTCMLESKZX/graph.json","events_json":"https://pith.science/api/pith-number/XWU23JBYRKB7YC4GQTCMLESKZX/events.json","paper":"https://pith.science/paper/XWU23JBY"},"agent_actions":{"view_html":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX","download_json":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX.json","view_paper":"https://pith.science/paper/XWU23JBY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.00227&json=true","fetch_graph":"https://pith.science/api/pith-number/XWU23JBYRKB7YC4GQTCMLESKZX/graph.json","fetch_events":"https://pith.science/api/pith-number/XWU23JBYRKB7YC4GQTCMLESKZX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX/action/storage_attestation","attest_author":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX/action/author_attestation","sign_citation":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX/action/citation_signature","submit_replication":"https://pith.science/pith/XWU23JBYRKB7YC4GQTCMLESKZX/action/replication_record"}},"created_at":"2026-05-18T00:28:40.671665+00:00","updated_at":"2026-05-18T00:28:40.671665+00:00"}