{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ERKZ7EZWXG36GWD4LSSD52MOBM","short_pith_number":"pith:ERKZ7EZW","canonical_record":{"source":{"id":"1301.0954","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-01-05T23:34:17Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"0755027fdd1498f657a85ae7f54fac60b0ce5836da1d08fcc4f735680c056942","abstract_canon_sha256":"6859f65bc395c984014e45ff80de11a60704174042eb549e7d42bd32d92db609"},"schema_version":"1.0"},"canonical_sha256":"24559f9336b9b7e3587c5ca43ee98e0b3405e8734179e4dfb028143cac809f55","source":{"kind":"arxiv","id":"1301.0954","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.0954","created_at":"2026-05-18T03:18:20Z"},{"alias_kind":"arxiv_version","alias_value":"1301.0954v1","created_at":"2026-05-18T03:18:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.0954","created_at":"2026-05-18T03:18:20Z"},{"alias_kind":"pith_short_12","alias_value":"ERKZ7EZWXG36","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"ERKZ7EZWXG36GWD4","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"ERKZ7EZW","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ERKZ7EZWXG36GWD4LSSD52MOBM","target":"record","payload":{"canonical_record":{"source":{"id":"1301.0954","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-01-05T23:34:17Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"0755027fdd1498f657a85ae7f54fac60b0ce5836da1d08fcc4f735680c056942","abstract_canon_sha256":"6859f65bc395c984014e45ff80de11a60704174042eb549e7d42bd32d92db609"},"schema_version":"1.0"},"canonical_sha256":"24559f9336b9b7e3587c5ca43ee98e0b3405e8734179e4dfb028143cac809f55","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:18:20.278929Z","signature_b64":"xj0+RKnyOUV32+ta2sVB62lq64syx4rjidtqiQ2uPr40iliAjmYHmiMRImCpGK6wPEvhoMA2b/3taubsEgR4CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24559f9336b9b7e3587c5ca43ee98e0b3405e8734179e4dfb028143cac809f55","last_reissued_at":"2026-05-18T03:18:20.278158Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:18:20.278158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.0954","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:18:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IB9z6mAhq9sifY3j8qUoQHJKPt/biJd3eRzTtB93ec4TfPq6ehvgrSEeuAieBpXSD2ngF1drVdCs/5OGIDbSBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T16:14:18.168181Z"},"content_sha256":"0c86084bb55393c2bb4b31d8b188e40d18d75eab1f33628208a3d328c38318ab","schema_version":"1.0","event_id":"sha256:0c86084bb55393c2bb4b31d8b188e40d18d75eab1f33628208a3d328c38318ab"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ERKZ7EZWXG36GWD4LSSD52MOBM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cellular Systems with Many Antennas: Large System Analysis under Pilot Contamination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Narayanan Krishnan, Narayan B. Mandayam, Roy D. Yates","submitted_at":"2013-01-05T23:34:17Z","abstract_excerpt":"Base stations with a large number of transmit antennas have the potential to serve a large number of users simultaneously at higher rates. They also promise a lower power consumption due to coherent combining at the receiver. However, the receiver processing in the uplink relies on the channel estimates which are known to suffer from pilot interference. In this work, we perform an uplink large system analysis of multi-cell multi-antenna system when the receiver employs a matched filtering with a pilot contaminated estimate. We find the asymptotic Signal to Interference plus Noise Ratio (SINR) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.0954","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:18:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KkjcpP0CbIaoX1TqwZWHA9Uec2iTnGPsbDHFJP6Lk4JMX8Kp2Kd9M/knSzdvhyCru5zlQZ6DzQrBaIhkSJE5Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T16:14:18.168543Z"},"content_sha256":"2e1ce643ed20cd15e3046f0aa314eb75da89c06c6ec68377efb7725fd01824c5","schema_version":"1.0","event_id":"sha256:2e1ce643ed20cd15e3046f0aa314eb75da89c06c6ec68377efb7725fd01824c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ERKZ7EZWXG36GWD4LSSD52MOBM/bundle.json","state_url":"https://pith.science/pith/ERKZ7EZWXG36GWD4LSSD52MOBM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ERKZ7EZWXG36GWD4LSSD52MOBM/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T16:14:18Z","links":{"resolver":"https://pith.science/pith/ERKZ7EZWXG36GWD4LSSD52MOBM","bundle":"https://pith.science/pith/ERKZ7EZWXG36GWD4LSSD52MOBM/bundle.json","state":"https://pith.science/pith/ERKZ7EZWXG36GWD4LSSD52MOBM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ERKZ7EZWXG36GWD4LSSD52MOBM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ERKZ7EZWXG36GWD4LSSD52MOBM","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":"6859f65bc395c984014e45ff80de11a60704174042eb549e7d42bd32d92db609","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-01-05T23:34:17Z","title_canon_sha256":"0755027fdd1498f657a85ae7f54fac60b0ce5836da1d08fcc4f735680c056942"},"schema_version":"1.0","source":{"id":"1301.0954","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.0954","created_at":"2026-05-18T03:18:20Z"},{"alias_kind":"arxiv_version","alias_value":"1301.0954v1","created_at":"2026-05-18T03:18:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.0954","created_at":"2026-05-18T03:18:20Z"},{"alias_kind":"pith_short_12","alias_value":"ERKZ7EZWXG36","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"ERKZ7EZWXG36GWD4","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"ERKZ7EZW","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:2e1ce643ed20cd15e3046f0aa314eb75da89c06c6ec68377efb7725fd01824c5","target":"graph","created_at":"2026-05-18T03:18:20Z","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":"Base stations with a large number of transmit antennas have the potential to serve a large number of users simultaneously at higher rates. They also promise a lower power consumption due to coherent combining at the receiver. However, the receiver processing in the uplink relies on the channel estimates which are known to suffer from pilot interference. In this work, we perform an uplink large system analysis of multi-cell multi-antenna system when the receiver employs a matched filtering with a pilot contaminated estimate. We find the asymptotic Signal to Interference plus Noise Ratio (SINR) ","authors_text":"Narayanan Krishnan, Narayan B. Mandayam, Roy D. Yates","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-01-05T23:34:17Z","title":"Cellular Systems with Many Antennas: Large System Analysis under Pilot Contamination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.0954","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":"sha256:0c86084bb55393c2bb4b31d8b188e40d18d75eab1f33628208a3d328c38318ab","target":"record","created_at":"2026-05-18T03:18:20Z","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":"6859f65bc395c984014e45ff80de11a60704174042eb549e7d42bd32d92db609","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-01-05T23:34:17Z","title_canon_sha256":"0755027fdd1498f657a85ae7f54fac60b0ce5836da1d08fcc4f735680c056942"},"schema_version":"1.0","source":{"id":"1301.0954","kind":"arxiv","version":1}},"canonical_sha256":"24559f9336b9b7e3587c5ca43ee98e0b3405e8734179e4dfb028143cac809f55","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24559f9336b9b7e3587c5ca43ee98e0b3405e8734179e4dfb028143cac809f55","first_computed_at":"2026-05-18T03:18:20.278158Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:18:20.278158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xj0+RKnyOUV32+ta2sVB62lq64syx4rjidtqiQ2uPr40iliAjmYHmiMRImCpGK6wPEvhoMA2b/3taubsEgR4CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:18:20.278929Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.0954","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c86084bb55393c2bb4b31d8b188e40d18d75eab1f33628208a3d328c38318ab","sha256:2e1ce643ed20cd15e3046f0aa314eb75da89c06c6ec68377efb7725fd01824c5"],"state_sha256":"6cb9c6d16f5860d4b4b2e6a89cce0aa42ccef1fdc08bf425ffae7a3a10372127"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YnMjLIIau66BLfB32I5supfs38l/ZO4q2vOCDDjby6Xr6syyUolSeuubprh6Qr4ufonPUWemYxEGjrvxB6q1DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T16:14:18.170574Z","bundle_sha256":"c8b8133632a433ae8403514be635de215d533da78745d6022e2018c2c361ed8b"}}