{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:YIIB7FKO6HLTNOJS3XQYKMT25N","short_pith_number":"pith:YIIB7FKO","canonical_record":{"source":{"id":"1701.07098","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-24T22:50:05Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"c48f2971b7f0f435a078bcf243958cb81f4cce7693be29b161586247686dd008","abstract_canon_sha256":"3e12b49c0101b8d4ba4e6c62628558eca8f7ca18e8ff9e7737de2058d5d0a84e"},"schema_version":"1.0"},"canonical_sha256":"c2101f954ef1d736b932dde185327aeb646b286ffad045f5ad575024928762db","source":{"kind":"arxiv","id":"1701.07098","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.07098","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"arxiv_version","alias_value":"1701.07098v1","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.07098","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"pith_short_12","alias_value":"YIIB7FKO6HLT","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YIIB7FKO6HLTNOJS","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YIIB7FKO","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:YIIB7FKO6HLTNOJS3XQYKMT25N","target":"record","payload":{"canonical_record":{"source":{"id":"1701.07098","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-24T22:50:05Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"c48f2971b7f0f435a078bcf243958cb81f4cce7693be29b161586247686dd008","abstract_canon_sha256":"3e12b49c0101b8d4ba4e6c62628558eca8f7ca18e8ff9e7737de2058d5d0a84e"},"schema_version":"1.0"},"canonical_sha256":"c2101f954ef1d736b932dde185327aeb646b286ffad045f5ad575024928762db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:07.510532Z","signature_b64":"9iMce3KhgxnB+pSMXoRWLcEU0xg0+MysR8n5FZUqOfoldLkADIqb9sfSjSUae6WYtipN0ZBe+5VbwWginx/uAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2101f954ef1d736b932dde185327aeb646b286ffad045f5ad575024928762db","last_reissued_at":"2026-05-18T00:52:07.509978Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:07.509978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.07098","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":"2026-05-18T00:52:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wiruSz6+wqHwO8ZSjExz2A3b3nqkuZ/7LT36CaLIXPTtRD8R3dYwvZASu8sbO6zVuw6EdadUssTn6nrO2UmyDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:08:14.705172Z"},"content_sha256":"807a879712480e654c2fc1dc7cfc99c5bc318f2191c1a6bcef65436f11ca93c4","schema_version":"1.0","event_id":"sha256:807a879712480e654c2fc1dc7cfc99c5bc318f2191c1a6bcef65436f11ca93c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:YIIB7FKO6HLTNOJS3XQYKMT25N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A novel alternative to Cloud RAN for throughput densification: Coded pilots and fast user-packet scheduling at remote radio heads","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Chenwei Wang, Giuseppe Caire, Haralabos Papadopoulos, Ozgun Y. Bursalioglu","submitted_at":"2017-01-24T22:50:05Z","abstract_excerpt":"We consider wireless networks of remote radio heads (RRH) with large antenna-arrays, operated in TDD, with uplink (UL) training and channel-reciprocity based downlink (DL) transmission. To achieve large area spectral efficiencies, we advocate the use of methods that rely on rudimentary scheduling, decentralized operation at each RRH and user-centric DL transmission.\n  A slotted system is assumed, whereby users are randomly scheduled (e.g., via shuffled round robin) in slots and across the limited pilot dimensions per slot. As a result, multiple users in the vicinity of an RRH can simultaneousl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.07098","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":"2026-05-18T00:52:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XFGA/DRJaspxhMXMb341JkM5GZ+n2SeuJOIKM2jQaFew5OQdu7wtOb6JWuN1eU4g8LV3ExfcpOTN8ohbFNL+AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:08:14.705856Z"},"content_sha256":"85e6d5fa5edc77b47a46438c79069c81c043c11db7ba6a1fac29ce93a5078fb3","schema_version":"1.0","event_id":"sha256:85e6d5fa5edc77b47a46438c79069c81c043c11db7ba6a1fac29ce93a5078fb3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YIIB7FKO6HLTNOJS3XQYKMT25N/bundle.json","state_url":"https://pith.science/pith/YIIB7FKO6HLTNOJS3XQYKMT25N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YIIB7FKO6HLTNOJS3XQYKMT25N/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":"2026-05-30T05:08:14Z","links":{"resolver":"https://pith.science/pith/YIIB7FKO6HLTNOJS3XQYKMT25N","bundle":"https://pith.science/pith/YIIB7FKO6HLTNOJS3XQYKMT25N/bundle.json","state":"https://pith.science/pith/YIIB7FKO6HLTNOJS3XQYKMT25N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YIIB7FKO6HLTNOJS3XQYKMT25N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YIIB7FKO6HLTNOJS3XQYKMT25N","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":"3e12b49c0101b8d4ba4e6c62628558eca8f7ca18e8ff9e7737de2058d5d0a84e","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-24T22:50:05Z","title_canon_sha256":"c48f2971b7f0f435a078bcf243958cb81f4cce7693be29b161586247686dd008"},"schema_version":"1.0","source":{"id":"1701.07098","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.07098","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"arxiv_version","alias_value":"1701.07098v1","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.07098","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"pith_short_12","alias_value":"YIIB7FKO6HLT","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YIIB7FKO6HLTNOJS","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YIIB7FKO","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:85e6d5fa5edc77b47a46438c79069c81c043c11db7ba6a1fac29ce93a5078fb3","target":"graph","created_at":"2026-05-18T00:52:07Z","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":"We consider wireless networks of remote radio heads (RRH) with large antenna-arrays, operated in TDD, with uplink (UL) training and channel-reciprocity based downlink (DL) transmission. To achieve large area spectral efficiencies, we advocate the use of methods that rely on rudimentary scheduling, decentralized operation at each RRH and user-centric DL transmission.\n  A slotted system is assumed, whereby users are randomly scheduled (e.g., via shuffled round robin) in slots and across the limited pilot dimensions per slot. As a result, multiple users in the vicinity of an RRH can simultaneousl","authors_text":"Chenwei Wang, Giuseppe Caire, Haralabos Papadopoulos, Ozgun Y. Bursalioglu","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-24T22:50:05Z","title":"A novel alternative to Cloud RAN for throughput densification: Coded pilots and fast user-packet scheduling at remote radio heads"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.07098","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":"sha256:807a879712480e654c2fc1dc7cfc99c5bc318f2191c1a6bcef65436f11ca93c4","target":"record","created_at":"2026-05-18T00:52:07Z","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":"3e12b49c0101b8d4ba4e6c62628558eca8f7ca18e8ff9e7737de2058d5d0a84e","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-24T22:50:05Z","title_canon_sha256":"c48f2971b7f0f435a078bcf243958cb81f4cce7693be29b161586247686dd008"},"schema_version":"1.0","source":{"id":"1701.07098","kind":"arxiv","version":1}},"canonical_sha256":"c2101f954ef1d736b932dde185327aeb646b286ffad045f5ad575024928762db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2101f954ef1d736b932dde185327aeb646b286ffad045f5ad575024928762db","first_computed_at":"2026-05-18T00:52:07.509978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:07.509978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9iMce3KhgxnB+pSMXoRWLcEU0xg0+MysR8n5FZUqOfoldLkADIqb9sfSjSUae6WYtipN0ZBe+5VbwWginx/uAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:07.510532Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.07098","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:807a879712480e654c2fc1dc7cfc99c5bc318f2191c1a6bcef65436f11ca93c4","sha256:85e6d5fa5edc77b47a46438c79069c81c043c11db7ba6a1fac29ce93a5078fb3"],"state_sha256":"6cff43752048a07fe06c9cf5a752784655e25f9e85f57ccfd9e787b81fcce23f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4U6SjBMB+qq40n+5RBY7fcjHkjU0Hiv/r1RFdoZ6AY3SzovmKrASsn9bBUmVyHgH5RCDOwMm2HCYmhk8hANHAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:08:14.709107Z","bundle_sha256":"264acb38382f2d6330d269c174e0af4fedde1981dd4ab016a5a4c6f8339f9368"}}