{"as_of":"2026-08-16T16:36:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:c1df30e6861c4206e478ec3f40c1a05c8178a1af6f7ab2a446d7525df0c787fc","coverage":[{"denominator":56,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":56,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-14T14:31:32.731753Z","state":"measured"},{"denominator":56,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":56,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-16T06:30:59.297886+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/1908.03119/citation-record","integrity":"/paper/1908.03119/integrity","json":"/paper/1908.03119/citation-record.json","paper":"/paper/1908.03119"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.655746Z","title":"A new look at cell-free Massive MIMO: Making it practical with dynamic cooperation,","venue":null,"work_id":"f5b8dda7-d59c-4b6a-8cd3-59e8f98d5115","year":2019},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.453249Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:86ad03792a00de1c439a04a139483d32c601bec1d55b8becc6457a3ec7d60b5a","observation_id":"33464af4-fe67-4477-8f7c-472abbb91b31","resolution":{"observed_at":"2026-08-14T14:31:33.660621Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.639764Z","title":"Massive MIMO networks: Spectral, energy, and hardware efficiency,","venue":null,"work_id":"482ca4e4-a602-40ad-b247-7671a2a3eb53","year":2017},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.459748Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:baaa3c69645b2129b2ff13aaedb3aba88574020eb6e8309494ee6243138e7025","observation_id":"939e3afc-9a43-44a8-ab66-cb02bdb719e1","resolution":{"observed_at":"2026-08-14T14:31:33.644645Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.465202Z","title":"Enhancing the cellular downlink capacity via co-processing at the transmitting end,","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.465202Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:ce69b578a0c006e150475af723f503fdb914a1dd5652d32cfd2f9e6a95a49e63","observation_id":"75802214-e878-4579-b1e2-5b0733ca1f1d","resolution":{"observed_at":"2026-08-14T14:31:32.465202Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.470779Z","title":"Network MIMO: Over- coming intercell interference in indoor wireless systems,","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.470779Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:1b2e8e88c3eaacb2525067249df73bd276cbccca852f2b27d55873e95ec7b0fa","observation_id":"a732ea1a-e45c-4329-b12b-800024dc6bb0","resolution":{"observed_at":"2026-08-14T14:31:32.470779Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.477145Z","title":"Cell-free Massive MIMO versus small cells,","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.477145Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:1ebc07963ece361b68ee834cf7571a599a6afe8c1afb7cbbfcaf581ac513811a","observation_id":"cccb57a3-4fc0-4692-b275-398a635f9826","resolution":{"observed_at":"2026-08-14T14:31:32.477145Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.589593Z","title":"Pre- coding and power optimization in cell-free Massive MIMO systems,","venue":null,"work_id":"4e990a81-3418-48d1-bdce-62cd605e132c","year":2017},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.482109Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:c664ed7e2700ebff90026ba17e7836ece72a1694610946a995e16b7c85707f6a","observation_id":"32f9452e-566b-4cba-aa5d-463879a5b539","resolution":{"observed_at":"2026-08-14T14:31:33.594949Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.573396Z","title":"Making cell-free massive MIMO competitive with MMSE processing and centralized implementation,","venue":null,"work_id":"5b7d9b19-af06-418c-88ac-20c80e80a749","year":2020},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.487915Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:21f22caeebe661b4199c013ef35438486e97e84ec0b0e7f1c0a02d2d762d9003","observation_id":"f66370e5-cacd-4a74-8dc5-120aa158d9ac","resolution":{"observed_at":"2026-08-14T14:31:33.578514Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.556191Z","title":"Multi-cell MIMO cooperative networks: A new look at interference,","venue":null,"work_id":"b5abd644-eb28-428c-aa7a-60f249a8e50e","year":2010},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.493228Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:60347f816c63f99d01bcc983c5e4ce305a8b4cf9eaa7f50430793c6b8439a956","observation_id":"9efe4571-fd40-4936-8ad7-977fa882754e","resolution":{"observed_at":"2026-08-14T14:31:33.561374Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.538766Z","title":"Cooperative multicell precoding: Rate region characterization and distributed strate- gies with instantaneous and statistical CSI,","venue":null,"work_id":"7346a483-856c-489f-831a-8d6d31c09ec9","year":2010},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.498315Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:9670cca60e903b273c7171bc66b3a51faaa3dc83ee2083e616530ff69f0f919e","observation_id":"1a516d36-3898-48ed-a610-a4793c6e58e3","resolution":{"observed_at":"2026-08-14T14:31:33.543658Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.522061Z","title":"Optimal resource allocation in coordi- nated multi-cell systems,","venue":null,"work_id":"68fde7ed-86a7-40bf-a206-17da2b9e9526","year":2013},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.503428Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:397b6a490de76b36b2ea45279a7237ed40a2fb2fbd1593f951ba2ccb4b81b8f8","observation_id":"737141bb-d286-4520-b016-9ba97b4a2a2f","resolution":{"observed_at":"2026-08-14T14:31:33.527944Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.503371Z","title":"On multicell cooperative transmission in backhaul-constrained cellular systems,","venue":null,"work_id":"1ac720bf-1dd9-4fd9-943f-534bb4116e5f","year":2008},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.508458Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:6f89a5a66e4b09f2c20fd0dd8fb217678e6d11892a8e8d6bdd2e860a6d2b4813","observation_id":"46070725-6c48-4228-b123-31b4b38878ba","resolution":{"observed_at":"2026-08-14T14:31:33.509677Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.484886Z","title":"Networked MIMO with clustered linear precoding,","venue":null,"work_id":"d7dedec7-ebef-4eeb-8145-ca51d08882b2","year":1910},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.514146Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:8482963772657829e5e03e2ee9c5146a3d05e1d30ff548884ab4dde1abe6c266","observation_id":"3d4d817d-97b4-4b7e-87f7-9773d3ccfc90","resolution":{"observed_at":"2026-08-14T14:31:33.490782Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.466733Z","title":"Increasing downlink cellular throughput with limited network MIMO coordination,","venue":null,"work_id":"9c607ec0-3816-4296-bd7a-d3ac12a42679","year":2009},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.519002Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:523910ecca57c34b19aff3b2bc981335ef7fc937dc126fd1b4154ba15305e523","observation_id":"daf31a8f-618f-4ec8-b690-b16ce28e0825","resolution":{"observed_at":"2026-08-14T14:31:33.472809Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.524007Z","title":"Osseiran, J","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.524007Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:8ba630f03c24a7da5ebf18c78c357ad819c7bfa7c62e92d8a708318279bdb046","observation_id":"09ef5a9b-5ca2-474d-bfdf-0952f8fdbd0b","resolution":{"observed_at":"2026-08-14T14:31:32.524007Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.436467Z","title":"Dynamic cooperation set clustering on base station cooperation cellular networks,","venue":null,"work_id":"e63ee4dd-739d-4d0c-8d77-4cdfe417a4ec","year":2010},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.528707Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:fc61281d15c28ed610a04112b078b11c0cea67770d2bbba6e407996fa4b97c0b","observation_id":"401daba3-42db-4941-908d-7b54f30e974d","resolution":{"observed_at":"2026-08-14T14:31:33.442166Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.418341Z","title":"Cooperative MIMO-OFDM cellular system with soft handover between distributed base station antennas,","venue":null,"work_id":"6d026c24-5415-4e05-a113-9af750961959","year":2008},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.533694Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:bafea0f38b47724116a122000533f51603e71d0140861f0ecd2033cc4d43b150","observation_id":"e9601ec1-232e-4d4e-b8de-d6d3e2c2e996","resolution":{"observed_at":"2026-08-14T14:31:33.423428Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.400089Z","title":"Optimality properties, distributed strategies, and measurement-based evaluation of coordinated multicell OFDMA transmission,","venue":null,"work_id":"8540dcf8-ab03-4fa6-aaa2-b7d2547eb645","year":2011},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.538932Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:8359f62b049b29a829118a9cd79e8adaf2da40eaaa404ad83bb56a8395cef045","observation_id":"8fba06b1-26e7-4c72-be55-ba6c29284afd","resolution":{"observed_at":"2026-08-14T14:31:33.405898Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.380822Z","title":"Linear precoding and equalization for network MIMO with partial cooperation,","venue":null,"work_id":"dd32320d-c6f2-46db-bdae-2506597eaeb6","year":2012},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.544060Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:fbc6bcdec339c7cbe2a7105b395221ddfedd9ac886148277fed68245facd5e43","observation_id":"5aa6f975-832b-4912-82e1-d1f307a6b374","resolution":{"observed_at":"2026-08-14T14:31:33.386688Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.362561Z","title":"A dynamic clustering approach in wireless networks with multi-cell cooperative processing,","venue":null,"work_id":"86f26716-478d-4a8e-be59-b2d07d3066a0","year":2008},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.548831Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:8deade888776a4a0c9fde5ea1e9f3981aa203acaec539eafeb9b9da993fcaf21","observation_id":"6480523b-ffc0-4370-848a-f7adfa203385","resolution":{"observed_at":"2026-08-14T14:31:33.368959Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.345958Z","title":"The role of small cells, coordinated multipoint, and massive MIMO in 5G,","venue":null,"work_id":"d82c27fd-5597-4045-a7a8-1ea83fa42c30","year":2014},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.553065Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:0625763f9edd5adbb1ea6587f8c0eabb44d068e2784cd0cb9b08123d489c3a05","observation_id":"a2e270f9-645d-4a60-8e75-33420b411bb7","resolution":{"observed_at":"2026-08-14T14:31:33.351200Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.557490Z","title":"An introduction to pCell,","venue":null,"work_id":null,"year":2015},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.557490Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:ac1d09ef847b98b075e1ed3a1c37e7fd249b49faeb046e77fba98578301c094c","observation_id":"1c06af05-84a7-4ae0-a06e-fc3d332d04cf","resolution":{"observed_at":"2026-08-14T14:31:32.557490Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.561659Z","title":"Noncooperative cellular wireless with unlimited num- bers of base station antennas,","venue":null,"work_id":null,"year":2010},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.561659Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:8dbccf2634f55a898ef955766387cc990b224102f8e4bff56278683e5eb687cd","observation_id":"be99f1ce-11c5-4fc3-af58-8b260e6f4cff","resolution":{"observed_at":"2026-08-14T14:31:32.561659Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.304461Z","title":"Towards massive MIMO 2.0: Understanding spatial correlation, interference suppression, and pilot contamination,","venue":null,"work_id":"3480f4e2-f5ea-4d51-b55d-9a54db6efc45","year":2020},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.566580Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:759dff20c101c1709b46616f6898b9cb267be6dcfb883daa6d5a26841d42930f","observation_id":"33185e08-56b6-4107-a57c-96ac6b700652","resolution":{"observed_at":"2026-08-14T14:31:33.311233Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.285997Z","title":"Massive MIMO in sub-6 GHz and mmWave: Physical, practical, and use-case differences,","venue":null,"work_id":"809f6071-65c5-402c-a7f2-ca760a37c863","year":2019},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.571670Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:993e3ea74a2c5dd77aa6c58b51df82b0571b9e282e3d74090420222017c9a5cd","observation_id":"3cc894e0-2942-48c8-8522-d27e8b25ab30","resolution":{"observed_at":"2026-08-14T14:31:33.291677Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.268814Z","title":"NR: The new 5G radio access technology,","venue":null,"work_id":"82c0481d-640d-43de-98f1-5d87f028bead","year":2017},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.576878Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:487845a1ab9525f0b9216b3d2c85cbc94a43ec31fa0aae9f02f9c5bf83d4f350","observation_id":"082e39b6-d4b7-46a3-8a96-a7e4cc5f7ba3","resolution":{"observed_at":"2026-08-14T14:31:33.274254Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.250489Z","title":"Performance analysis and power control of cell-free massive MIMO systems with hardware impairments,","venue":null,"work_id":"02ace247-d750-4372-b40f-c670e21d126d","year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.582225Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:ba637615d2055590091f8d89e74ebafa7b843672c13a1f133a19d8722436ee32","observation_id":"6705fb6f-8e89-43e3-8dc2-f852bfff07c2","resolution":{"observed_at":"2026-08-14T14:31:33.256212Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.586710Z","title":"Cell-free massive MIMO: User-centric approach,","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.586710Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:577a443ea468309f5aeb1668a2c1191e693bfebffd6bdb31c1cb71b22fac9e1b","observation_id":"edd3ac74-167d-4184-9b8b-8d89e748172e","resolution":{"observed_at":"2026-08-14T14:31:32.586710Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.222087Z","title":"On the total energy efficiency of cell-free massive MIMO,","venue":null,"work_id":"c0a64fbe-0d4f-4e16-bc4b-352c233e6f9e","year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.591297Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:24f01c4f1c12a593479d18f1fdb87b524ec4be8826d5e43cd84e1c0cfece6c9c","observation_id":"b4028076-f322-4abe-859e-aa88aec21377","resolution":{"observed_at":"2026-08-14T14:31:33.227351Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.205377Z","title":"Fog massive MIMO: A user-centric seamless hot-spot architecture,","venue":null,"work_id":"f67995c8-0912-4f9e-9fb2-7e44ba41c935","year":2019},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.595805Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:45435bf9bf9bb1abb8e26355d4a25ef4338c0008e83e89ea396f7eb7bdaf2d5e","observation_id":"78929bd7-8a7e-4fd4-9153-f29224e14fec","resolution":{"observed_at":"2026-08-14T14:31:33.210711Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.600303Z","title":"Performance of cell-free massive MIMO systems with MMSE and LSFD receivers,","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.600303Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:cd5855a582c52b63e9b989d035336bccf9132a581d262313a53f0b741cf9f8e0","observation_id":"e4df908d-ab62-4223-b3c2-9a3a7c996054","resolution":{"observed_at":"2026-08-14T14:31:32.600303Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.605782Z","title":"On the uplink max-min SINR of cell-free massive MIMO systems,","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.605782Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:e0a082e13c7407cf7385396af8e56c12ba3926ac043ebd6fa1824a21b3ede38a","observation_id":"f87de41b-f4ba-4fde-bb0e-e832c72bd04e","resolution":{"observed_at":"2026-08-14T14:31:32.605782Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.166451Z","title":"Adaptation, co- ordination, and distributed resource allocation in interference-limited wireless networks,","venue":null,"work_id":"aaf9ec29-5813-496f-b935-c7744740de55","year":2007},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.611395Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:552de0d58d0cc6852683ab1b9e3d455473f8d3336fe230dc326b609fd2c2380b","observation_id":"937ee7a7-7338-445c-960e-e1669a2e1baa","resolution":{"observed_at":"2026-08-14T14:31:33.171731Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.149998Z","title":"Scalability aspects of cell-free massive MIMO,","venue":null,"work_id":"309405db-c93f-41ab-b477-04382453648a","year":2019},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.617236Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:2db8a9ed56de159c881d8903c7adcbc20e6bb9633bc40a701e000b4ff7059ad9","observation_id":"b51785e6-7e30-457c-b77c-387570fe69c2","resolution":{"observed_at":"2026-08-14T14:31:33.154729Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.133412Z","title":"Uplink fractional power control for cell- free wireless networks,","venue":null,"work_id":"a02e0586-564f-4f4c-b262-c9749d6b637d","year":2019},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.621828Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:b4b3debec8fdfdad5ba08005be560c3da423425534838197ad5ddaf60c2c2aa4","observation_id":"c817ce78-9093-4640-8c15-abf928165bbc","resolution":{"observed_at":"2026-08-14T14:31:33.138516Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.627555Z","title":"Ultra-dense radio access networks for smart cities: Cloud-RAN, fog-RAN and “cell-free","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.627555Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:6f03e26094763f7a2ff4d2881913cef97651b1002fe4ec90fb30807e6f3d9bad","observation_id":"40d35a8b-d4f9-426b-9fae-69d73db52c80","resolution":{"observed_at":"2026-08-14T14:31:32.627555Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.104734Z","title":"Massive MIMO with imperfect channel covariance information,","venue":null,"work_id":"99826371-7817-4e3f-98ac-a7726839daf7","year":2016},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.632285Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:dd97433e47c2886d60234c3ab8a3eb444921faf1dc73a8d3b0730af15a9e06d5","observation_id":"cc4eeb59-8b48-4cae-8faa-4fc35ebb212c","resolution":{"observed_at":"2026-08-14T14:31:33.109795Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.088706Z","title":"Covariance matrix estima- tion in massive MIMO,","venue":null,"work_id":"acd970d8-963a-4622-a57c-e25ca7b68b6a","year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.637676Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:1e3fae33bc12e229a7e84a671cddbb1c95cf9d3bf5e366a3c4058a549177fb33","observation_id":"669d0b39-ae7a-4c58-827e-e038cbc01c46","resolution":{"observed_at":"2026-08-14T14:31:33.093928Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.070906Z","title":"Covariance matrix estimation for massive MIMO,","venue":null,"work_id":"4a283a39-220b-4062-9cd7-e3904d1e4e2b","year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.642830Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:ff9e297ff81de2bc86d49936b77c1bcc8641561b80d7b18215b06f4b952db289","observation_id":"1a99ec83-c6d2-453c-9585-67a50e1c4b0a","resolution":{"observed_at":"2026-08-14T14:31:33.076737Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.054592Z","title":"Massive MIMO pilot decontamination and channel interpolation via wideband sparse channel estimation,","venue":null,"work_id":"487e13b0-25e8-4f67-b003-d10211c0e52d","year":2017},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.648053Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:bb73f013baede4f6b64358a6b4070da25e1eaaea3a7537bd4b448ace17a0adb6","observation_id":"7ab7cd42-aae9-42ba-8531-966b35b05c49","resolution":{"observed_at":"2026-08-14T14:31:33.059606Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.038356Z","title":"Robust pilot decontamination based on joint angle and power domain discrim- ination,","venue":null,"work_id":"5baf5e69-813b-4cf5-aa1e-30dfe14dc2b9","year":2016},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.652878Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:22749679df353a36aa400c9685e985fdc101dc0ca95e998e34deebd01cd58898","observation_id":"faf3bd9b-4837-4985-bc2d-70a69e0a6ef6","resolution":{"observed_at":"2026-08-14T14:31:33.043364Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.022419Z","title":"Massive MIMO has unlimited capacity,","venue":null,"work_id":"f069025d-fe58-47ba-8edb-7c8f5584870b","year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.657992Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:eb640423b03baca26bb3f7fb3bb14b0b652885422cd547cf452fe9b894cbe7d5","observation_id":"438b051e-8bdc-4769-b658-608590c24fa1","resolution":{"observed_at":"2026-08-14T14:31:33.027185Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:33.005646Z","title":"Sesia, I","venue":null,"work_id":"3caec96c-5d05-401b-92f4-578d9ab74d93","year":2009},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.662786Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:257b86411a1224da610609554ab5efe8f4edf7b82f8cb65337237433e86ac916","observation_id":"efd999a2-4cf1-47d4-b616-0b62c02defaa","resolution":{"observed_at":"2026-08-14T14:31:33.010669Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.989019Z","title":"An initial ranging scheme for the IEEE 802.16 OFDMA uplink,","venue":null,"work_id":"df7d705c-7eab-4396-a040-e83347c7f309","year":2012},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.667542Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:7575ef1320fb1164625536acb817623aef8607ef8be4711a98068b15c4c88c77","observation_id":"159636f2-48d7-4799-a12b-06a6a016d2fc","resolution":{"observed_at":"2026-08-14T14:31:32.994523Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.972343Z","title":"A random access algo- rithm for LTE systems,","venue":null,"work_id":"db0e08ee-81a1-4dab-b34d-adf6a8b59db8","year":2013},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":44,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.672129Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:a138dc812b070a1e1cb787a81f37de1cbd88b5b81ec4c3fa633039ab86e26bab","observation_id":"f06e0281-42d8-40bc-b750-75e9e1ac0015","resolution":{"observed_at":"2026-08-14T14:31:32.976954Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.957573Z","title":"On the capacity of cloud radio access networks with oblivious relaying,","venue":null,"work_id":"b79448b9-380e-436c-b762-fcc6561e9994","year":2019},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":45,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.677151Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:779883984e1ed0b7411a52f0c4b2ece70e6868e9923f7923aa859148787084a7","observation_id":"a1ea8806-2e5e-4a87-917d-4b36f0e7180f","resolution":{"observed_at":"2026-08-14T14:31:32.962035Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.940992Z","title":"Fading channels: Information- theoretic and communications aspects,","venue":null,"work_id":"4d153306-0ad2-4642-8bba-426c12aecf86","year":1998},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":46,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.681620Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:3ba74296cc2f6837d56e2540bb0008e9ff2ac72bb521fdf4068a02c6a00dd35a","observation_id":"1a2687b5-18bd-463f-b0a0-a4e42ad05a2c","resolution":{"observed_at":"2026-08-14T14:31:32.947290Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.923017Z","title":"Channel hardening and favorable propagation in cell-free massive MIMO with stochastic geometry,","venue":null,"work_id":"69cc4992-f113-44ea-8063-b64a67ab1f00","year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":47,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.686396Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:2aa56f7a94acc6d1c8415ed154f362a22422fc8fa2ae7110bbda8d09f7a09b85","observation_id":"720e2d3a-3ed4-46c6-ae20-274c023ca0f4","resolution":{"observed_at":"2026-08-14T14:31:32.929537Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.906898Z","title":"On the performance of backhaul constrained cell- free massive MIMO with linear receivers,","venue":null,"work_id":"f23ddfc8-fafa-4d59-9068-14aef41db1b6","year":2018},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":48,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.691261Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:cc55af39019ca3472271b941af6bbc5149092cf342f26dd39fb2143e820b2596","observation_id":"342245ff-f987-41e5-918a-94e0dee57180","resolution":{"observed_at":"2026-08-14T14:31:32.911611Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.891307Z","title":"Transmitter optimization for the multi-antenna downlink with per-antenna power constraints,","venue":null,"work_id":"453074e4-90ec-4b68-a6ad-fb6945958a7a","year":2007},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":49,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.696428Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:13b38cff3e98673ab139ddca85122edec1abb1bb6681488cf142cdfc6559112d","observation_id":"2062f1af-e650-4fe3-a2e8-aa07f0ccc666","resolution":{"observed_at":"2026-08-14T14:31:32.896245Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.875311Z","title":"A general duality theory for uplink and downlink beamforming,","venue":null,"work_id":"2890aeab-6fbf-49ec-8efe-5e1396b25f83","year":2002},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":50,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.702174Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:da896176972a666a4be74e1a1c5a88478f69247964e802f198dea490c65d76c0","observation_id":"64a4b856-a62e-43c2-841b-d5c11cff5e07","resolution":{"observed_at":"2026-08-14T14:31:32.880162Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.854253Z","title":"Sum capacity of the vector Gaussian broadcast channel and uplink-downlink duality,","venue":null,"work_id":"0655140e-d446-4c89-959f-ed1d2bf8395f","year":1912},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":51,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.708436Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:971959ad60859ccc1b3157ca00f5dbb8c417fb91d45438f550c018b90250af79","observation_id":"ab8b0b28-a7db-49ed-84af-ee45eec080b0","resolution":{"observed_at":"2026-08-14T14:31:32.860441Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.834628Z","title":"Massive MIMO for maximal spectral efficiency: How many users and pilots should be allocated?","venue":null,"work_id":"d3b94cc2-0922-45a3-b7b4-55246148e1ba","year":2016},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":52,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.712870Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:735e4eba785c7d98b3133decf7ba2e4f0273e5543f88c6a6a25dffee9d4d7b53","observation_id":"359f2e38-2e35-40e6-ac82-ae106a5d4385","resolution":{"observed_at":"2026-08-14T14:31:32.840846Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.816904Z","title":"Massive MIMO in the UL/DL of cellular networks: How many antennas do we need?","venue":null,"work_id":"689f2b23-51a6-4a12-a7d5-3e2c5547854b","year":2013},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":53,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.717778Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:c66020a1c712ab5e09300d5b57607f7e6a49df29b7f532a7f7447fc80757d852","observation_id":"09981da7-fdcc-4290-9d44-0e9808bd9ba2","resolution":{"observed_at":"2026-08-14T14:31:32.822764Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.800709Z","title":"Energy and spectral effi- ciency of very large multiuser MIMO systems,","venue":null,"work_id":"f3eb184d-bba2-400e-88a5-465f39a6176d","year":2013},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":54,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.722121Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:3b0afa4b21d359d978010a6b05a2c4a4b154afbb42d3e15ddc34c15c28f69088","observation_id":"49542853-c6c8-4d80-9e44-1be79623acdc","resolution":{"observed_at":"2026-08-14T14:31:32.805819Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.785287Z","title":"Recent progress on C-RAN centralization and cloudification,","venue":null,"work_id":"4fc68212-2aa2-4302-829b-daf8c11def31","year":2014},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":55,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.726755Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:49dea233e7f0e1bb785acf66e647802cb828ca9677108f1995a72620a1f31c80","observation_id":"79b95484-36c6-4cd2-84a8-e9b935e5848a","resolution":{"observed_at":"2026-08-14T14:31:32.790316Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T14:31:32.765855Z","title":"Recent advances in cloud radio access networks: System architectures, key techniques, and open issues,","venue":null,"work_id":"8407bee6-4936-4f4c-bb49-713b26a6e822","year":2016},"citing_paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems","version":2},"reference_index":56,"source":"pdf_text","source_observed_at":"2026-08-14T14:31:32.731753Z"},"links":{"citing_paper":"/paper/1908.03119"},"observation_digest":"sha256:b48ee87b62afc8f0fe3b358c822b20a9e824476d040692ef64e78a3c7076cf1f","observation_id":"86d75509-c011-4f34-ba41-6ee797178afe","resolution":{"observed_at":"2026-08-14T14:31:32.773319Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"1908.03119","last_updated":"2020-05-08T13:01:08Z","latest_version":2,"primary_category":"cs.IT","snapshot_observed_at":"2026-08-16T14:20:05.259016Z","submitted_at":"2019-08-08T15:32:13Z","title":"Scalable Cell-Free Massive MIMO Systems"},"reference_resolution":{"displayed":56,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":10,"verified_exact":0,"verified_fuzzy":46},"total_outbound_references":56},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"thesis":"As of 16 August 2026, this Paper Citation Record lists 56 of 56 outbound references and 0 inbound Pith citation observations for arXiv:1908.03119."}