{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:5MKI5VO6HY6JCZ5O7D3TGV7VH3","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":"a83db400230c801ee189c336a8794e14dd4004c488d655fccc581aba8c8d1324","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-10-23T06:13:36Z","title_canon_sha256":"379e5b1f1f7e4d3e524cffb099873c576ae0658d9583c627291a8b33437d4ed9"},"schema_version":"1.0","source":{"id":"1810.09672","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.09672","created_at":"2026-05-18T00:02:29Z"},{"alias_kind":"arxiv_version","alias_value":"1810.09672v1","created_at":"2026-05-18T00:02:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.09672","created_at":"2026-05-18T00:02:29Z"},{"alias_kind":"pith_short_12","alias_value":"5MKI5VO6HY6J","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5MKI5VO6HY6JCZ5O","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5MKI5VO6","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:028859f1f65f634d754c38a8b38f67c5525fe3459fa46e5d63219a5df56d824c","target":"graph","created_at":"2026-05-18T00:02:29Z","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":"In this paper, we consider capacity degradations stemming from potential hardware impairments (HWI) of newly proposed Large Intelligent Surface (LIS) systems. Without HWI, the utility of surface-area (the first-order derivative of the capacity with respect to surface-area) is shown to be proportional to the inverse of it. With HWI, the capacity as well as the utility of surface-area are both degraded, due to a higher effective noise level caused by the HWI. After first modeling the HWI in a general form, we derive the effective noise density and the decrement of utility in closed-forms. With t","authors_text":"Fredrik Rusek, Ove Edfors, Sha Hu","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-10-23T06:13:36Z","title":"Capacity Degradation with Modeling Hardware Impairment in Large Intelligent Surface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.09672","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:cfad1d96c04cdc520e8c8846f581d9528d2924faff79148cb29b72a130b0cf94","target":"record","created_at":"2026-05-18T00:02:29Z","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":"a83db400230c801ee189c336a8794e14dd4004c488d655fccc581aba8c8d1324","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-10-23T06:13:36Z","title_canon_sha256":"379e5b1f1f7e4d3e524cffb099873c576ae0658d9583c627291a8b33437d4ed9"},"schema_version":"1.0","source":{"id":"1810.09672","kind":"arxiv","version":1}},"canonical_sha256":"eb148ed5de3e3c9167aef8f73357f53eeba69173a15c9a62689584e50f7eb1e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb148ed5de3e3c9167aef8f73357f53eeba69173a15c9a62689584e50f7eb1e0","first_computed_at":"2026-05-18T00:02:29.797367Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:29.797367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pwrKJ2avkONIWjmmxP/lzNA4q77wD7wPpvymxv34PC3Su9ReaeBt7qu5HKQy8/KQk92ku0tZTNMwoebQqudZBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:29.797997Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.09672","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cfad1d96c04cdc520e8c8846f581d9528d2924faff79148cb29b72a130b0cf94","sha256:028859f1f65f634d754c38a8b38f67c5525fe3459fa46e5d63219a5df56d824c"],"state_sha256":"9390f6f743041561a1d1ac4141f72df2e8cd79ecaed06b5d583cba1f25c64bf5"}