{"as_of":"2026-08-18T17:05:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:4ba97999550c5a8cc4743628cce136f00f06f1be6a36ec5371133d9bc1ac51dd","coverage":[{"denominator":46,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":46,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-15T23:29:53.891586Z","state":"measured"},{"denominator":46,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":46,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-18T06:34:40.430872+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/2505.04933/citation-record","integrity":"/paper/2505.04933/integrity","json":"/paper/2505.04933/citation-record.json","paper":"/paper/2505.04933"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-15T23:29:54.576512Z","title":"Time-frequency phase-shifted pilots for mas sive MIMO- OFDM channel estimation,","venue":null,"work_id":"4655a2a5-267b-4ee6-a061-e1c40580392d","year":2024},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.685946Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:010e53f69152338284ee6f3b4f10db1eb8f670701fb15a4c68044172c5b9f982","observation_id":"74a29b74-7ee8-40a7-bf3c-a55b438413ff","resolution":{"observed_at":"2026-08-15T23:29:54.581413Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.562359Z","title":"On the road to 6G: Visions, requirements, key technologies, and testbeds,","venue":null,"work_id":"3eb87e94-7644-47d9-8737-89a8844dfcf0","year":2023},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.690973Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:52df9e7a0a4b7e10a7afbd0ba87a0d9e171bb33402f179ff49304601d53adf63","observation_id":"b440dd44-d4b7-4877-a2af-eaf1aba326f8","resolution":{"observed_at":"2026-08-15T23:29:54.566757Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.548629Z","title":"Towards 6G wireless com- munication networks: Vision, enabling technologies, and n ew paradigm shifts,","venue":null,"work_id":"e5e4e4ad-c9ac-42c0-bf23-802348e0142d","year":2021},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.695597Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:12d32afe73747a8bff7f9c05bb24be6dfdaa77b19729f7e354ed9c167f819c6b","observation_id":"71aadd62-5fcb-49cf-b4ff-292eded10225","resolution":{"observed_at":"2026-08-15T23:29:54.553053Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.535222Z","title":"6G wireless channel measurements and models: Trends and chall enges,","venue":null,"work_id":"6f492b36-608d-415f-b28e-e61fae8b8c0a","year":2020},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.700615Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:5714f530eb7d1e6fe724a32de4d33e92fa70f6181c49bdbd539d50ae90542fd8","observation_id":"9f248e4b-3213-4eda-922d-b9fe48921fd8","resolution":{"observed_at":"2026-08-15T23:29:54.539612Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.521491Z","title":"5G-advanced toward 6G: Past, present, and future,","venue":null,"work_id":"6e1e10a3-f4a8-4f4a-baa8-edf0a56e7da8","year":2023},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.705996Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:d1e0d8221037e5f310e35807800d003fa3b6eb1849c9846010046607168c8107","observation_id":"ff9a19f3-b0c7-4733-9728-5b9d81d63a85","resolution":{"observed_at":"2026-08-15T23:29:54.525906Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.508426Z","title":"Tra ining signal design and tradeoffs for spectrally-efficient multi-user M IMO-OFDM systems,","venue":null,"work_id":"8848732a-888a-484e-b799-dac23ba4c97a","year":2011},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.710744Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:7b793716a11cde4986b18f2891c5402d56853551ff2e92565ae56a508421e53b","observation_id":"bd293bb0-b1b3-4897-afb8-555fd9587f4d","resolution":{"observed_at":"2026-08-15T23:29:54.512676Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.495176Z","title":"Spars e channel estimation via hierarchical hybrid message passing for mas sive MIMO- OFDM systems,","venue":null,"work_id":"838c9c75-5922-47ea-975f-f5cdf5acac8d","year":2021},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.715625Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:69ba514bc02c9586ae610f19de8ccde976cc38cb2416425803b55fd0285ad501","observation_id":"ec76b7bc-8134-4c73-8eb9-a324e8a24325","resolution":{"observed_at":"2026-08-15T23:29:54.499445Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.481981Z","title":"St ructured hybrid message passing based channel estimation for massiv e MIMO- OFDM systems,","venue":null,"work_id":"65a26776-9327-443f-895f-a4b167588a40","year":2023},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.719882Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:8e99d70098bfde11ff4076076e2312a457bc4a6f4098c1994afb29f982b18837","observation_id":"3868ed43-2af5-4182-aa18-11d81bca3309","resolution":{"observed_at":"2026-08-15T23:29:54.486233Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.468106Z","title":"Channel estimation for massive MIMO: An information geome try approach,","venue":null,"work_id":"60bdcaec-ed66-4135-8b22-5ef4937a4197","year":2022},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.724283Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:8e0d3d4b58a507846c033b9aa9be690ee6429055e3eebde7b1ac32dad88dc43f","observation_id":"b0bc854b-acf8-4339-8237-b687d3e6fd57","resolution":{"observed_at":"2026-08-15T23:29:54.472708Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.454521Z","title":"Low- overhead hierarchically-sparse channel estimation for mu ltiuser wide- band massive MIMO,","venue":null,"work_id":"d1a515a4-2135-474d-990f-1a54219647e1","year":2019},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.728649Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:0ba1a05f6a0b2071bf886c41a0ee8f1cd2e33479f43f115ef8ef001b5e7a7383","observation_id":"f9725bbb-fc34-4bab-ab6c-ee419053e899","resolution":{"observed_at":"2026-08-15T23:29:54.459071Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.441300Z","title":"Pilot reu se for massive MIMO transmission over spatially correlated rayle igh fading channels,","venue":null,"work_id":"6e9edbf1-4dde-4b9e-87a6-75f27a86cc9a","year":2015},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.732930Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:16ff92890491e173561b409dc567a059b96a86e2d4bd5fd31df9abe2b25eeadb","observation_id":"c2049b6d-ce37-4477-9fc6-319726f392e8","resolution":{"observed_at":"2026-08-15T23:29:54.445693Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.427965Z","title":"Noncooperative cellular wireless wit h unlimited num- bers of base station antennas,","venue":null,"work_id":"e3cebbbb-88b5-4361-8274-dcc2147e496e","year":2010},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.737525Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:cd74b05407d15876b6f24283657de916bfcd35af5d8af1d220e0996e69f33cb4","observation_id":"56557831-3c48-43b7-8c45-2a909ad3e288","resolution":{"observed_at":"2026-08-15T23:29:54.432398Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.414700Z","title":"Chan nel ac- quisition for massive MIMO-OFDM with adjustable phase shif t pilots,","venue":null,"work_id":"9b0969ee-9acf-471b-a413-450d1d7b68f3","year":2016},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.741969Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:aca4900c297a389f8273b62c82ce033171c4684ab7d33e2455f54bfdd76ceceb","observation_id":"185a84d5-0be0-4bad-a402-b27304c39836","resolution":{"observed_at":"2026-08-15T23:29:54.419230Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.400791Z","title":"Chann el estimation and robust detection for IQ imbalanced uplink ma ssive MIMO-OFDM with adjustable phase shift pilots,","venue":null,"work_id":"92f5c57f-d492-4c90-b136-25fcc212c918","year":2021},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.746360Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:b29ab33ed275e6e73dbff62d1671393adf36a50158e3cec06576571c0c9f7a10","observation_id":"7a3fb7e9-c5cc-43d7-af38-f101066c72be","resolution":{"observed_at":"2026-08-15T23:29:54.405310Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.385594Z","title":"Efficient c oordinated recovery of sparse channels in massive MIMO,","venue":null,"work_id":"86033287-743a-438c-9967-3a1d61226571","year":2015},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.750739Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:a9d0d7a811bef100e26df8e8b8debb582cc64be45fbb9292aa1f9ccffa2ee635","observation_id":"5bc2c4c3-8f2a-4b32-8817-81979a9f1b86","resolution":{"observed_at":"2026-08-15T23:29:54.390324Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.370715Z","title":"Pilot reuse for vehicle-to-vehicle underlay massive MIMO transmis- sion,","venue":null,"work_id":"7e915b40-b945-446e-be28-69bad8def0e8","year":2020},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.755142Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:afd9681c8e232e6cd3a66ad8cd4028601dd56a89931991755853c11413570fff","observation_id":"7a57eab2-ae9c-4b7f-8ddb-0daa374dde4c","resolution":{"observed_at":"2026-08-15T23:29:54.375282Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.356328Z","title":null,"venue":null,"work_id":"605b632b-3117-453c-86dd-15eb1c7e7a20","year":2010},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.759440Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:78e0315f15a8297b552c91b821bc40801f75044864d523fea0ee623e1869c109","observation_id":"9172fba5-3506-49e6-8d57-79d06a29cba2","resolution":{"observed_at":"2026-08-15T23:29:54.361470Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.341139Z","title":"A coordinat ed approach to channel estimation in large-scale multiple-antenna sys tems,","venue":null,"work_id":"cd4d6952-9da0-48cc-9f90-6d3fe07efb39","year":2013},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.763679Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:d77bdf85737c39002fdc4a3ee3fa8e90fb4ce18fd8391a135acc9efe2122a506","observation_id":"19f74798-057d-463b-b2c4-904a206163a0","resolution":{"observed_at":"2026-08-15T23:29:54.345909Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.327541Z","title":"Channel acquisition for HF skywave massive MIMO-OFDM comm uni- cations,","venue":null,"work_id":"4abcd398-6b41-41fb-b5c4-6b25ee3f8cb5","year":2023},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.767888Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:207ac16585ebae1bfb9dc9161daa049a7d7058bac64c6e1822029822a1a3a976","observation_id":"95d4c320-88c6-49a8-b9e5-a4e6e99c9a2f","resolution":{"observed_at":"2026-08-15T23:29:54.331864Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.313089Z","title":"Inform ation geometry approach for ultra-massive MIMO signal detection ,","venue":null,"work_id":"2aeeb30b-76ef-4c4b-b6a1-c8b8c09bd0e1","year":2023},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.772159Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:82ade5dfd6097aa3f9a50d707e8b08c6549186f4a54681e1358be0253ee890f4","observation_id":"dd5effed-d2a6-4c73-a513-9ff3e0e09521","resolution":{"observed_at":"2026-08-15T23:29:54.317571Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.299638Z","title":"Constructing fre e-energy approx- imations and generalized belief propagation algorithms,","venue":null,"work_id":"76d2fe56-5428-4b7f-9be2-875c8581fbd6","year":2005},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.776337Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:5ab1fa3292b64636bd49b821561c28f93e789ee66e0d6771bdd527eae1f6091e","observation_id":"bebe210b-8ec2-403c-93e9-ae2bdd637011","resolution":{"observed_at":"2026-08-15T23:29:54.304322Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.284606Z","title":"Message-pas sing algo- rithms for compressed sensing,","venue":null,"work_id":"ad7633aa-ceae-4c30-bdbe-9e7ac360b145","year":2009},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.780600Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:992cff640c5f204ac0de8f1819b2c85e3aa25a42b50d5f4ece37ce60b15db50f","observation_id":"06c47913-4ad9-4a53-a02d-27cb96e154d5","resolution":{"observed_at":"2026-08-15T23:29:54.290047Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.269039Z","title":"Generalized approximate message passing f or estimation with random linear mixing,","venue":null,"work_id":"c7d2a13e-7e93-49e2-b65e-b116bc0b3f87","year":2011},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.784982Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:c921ee92ec43c9bcc53b834e2e1a57a6dbc6c4ae965712d1a2d919d1a95c1791","observation_id":"5766b711-d7a8-4a3b-a54f-ab1b1b7a69db","resolution":{"observed_at":"2026-08-15T23:29:54.274487Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.254593Z","title":"Un ifying message passing algorithms under the framework of constrai ned bethe free energy minimization,","venue":null,"work_id":"f4a4e87c-c3c1-46a2-9214-210aefbf60c2","year":2021},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.790024Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:787478e1a72ef7b118535d5316c0433c47e036f4f28309ba2c584fa3c9401cdc","observation_id":"7a617acc-47f1-4db7-8185-830ec1bbe739","resolution":{"observed_at":"2026-08-15T23:29:54.259314Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2401.02035","last_updated":"2024-06-04T00:47:19Z","snapshot_observed_at":"2026-08-16T14:29:58.113869Z","submitted_at":"2024-01-04T02:36:47Z","title":"Efficient Information Geometry Approach for Massive MIMO-OFDM Channel Estimation","version":2},"cited_work":{"arxiv_id":"2401.02035","doi":null,"metadata_source":"pith","pith_arxiv_id":"2401.02035","snapshot_observed_at":"2026-08-15T23:29:53.952812Z","title":"Efficient Information Geometry Approach for Massive MIMO-OFDM Channel Estimation","venue":"cs.IT","work_id":"c61aa4fe-51c1-4d65-be5a-bef5cfec7b7d","year":2024},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.794202Z"},"links":{"cited_paper":"/paper/2401.02035","citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:4a6ce0e47dba08270a459df7d87c19bea019f285b3eeeffc2f3c6efbdf3af455","observation_id":"e9ca75b3-c389-4f72-afd3-e652b7bd11bd","resolution":{"observed_at":"2026-08-15T23:29:53.957560Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2401.02037","last_updated":"2024-11-26T02:58:42Z","snapshot_observed_at":"2026-08-16T14:29:58.012792Z","submitted_at":"2024-01-04T02:42:36Z","title":"Simplified Information Geometry Approach for Massive MIMO-OFDM Channel Estimation -- Part II: Convergence Analysis","version":3},"cited_work":{"arxiv_id":"2401.02037","doi":null,"metadata_source":"pith","pith_arxiv_id":"2401.02037","snapshot_observed_at":"2026-08-15T23:29:53.929030Z","title":"Simplified Information Geometry Approach for Massive MIMO-OFDM Channel Estimation -- Part II: Convergence Analysis","venue":"cs.IT","work_id":"e0f422bc-e1c9-43ed-be99-af319bb4235f","year":2024},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.799190Z"},"links":{"cited_paper":"/paper/2401.02037","citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:457fdd6ee1474ede8e1ccfd2978cb6c89151c4966faf57bd7a265d4143418377","observation_id":"aa46946f-86b7-43b8-8fb7-5a70b2516569","resolution":{"observed_at":"2026-08-15T23:29:53.936743Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.240408Z","title":"Amari, Information Geometry and Its Applications","venue":null,"work_id":"5d2e2319-53db-4026-9209-84eb3c00f320","year":2016},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.803896Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:dfef028746621476341baffb2b6486e603959cb9c5b91637d0144e21261f9408","observation_id":"a092aaed-7f9a-4f69-b7dd-6f950c8df9d2","resolution":{"observed_at":"2026-08-15T23:29:54.245427Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.225810Z","title":"Channel es timation for orthogonal time frequency space (OTFS) massive MIMO,","venue":null,"work_id":"ef58b935-a377-41d6-96e3-70e6bce23e1d","year":2019},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.808456Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:e382879c879d780f634e45c6e9f1fe3901e7423c386ec59ef06da06945a7a60b","observation_id":"150d9b85-97d4-43a8-a5c6-85c3f4b79bc5","resolution":{"observed_at":"2026-08-15T23:29:54.230282Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.211129Z","title":"Deterministic pilot design and channel estimation for dow nlink massive MIMO-OTFS systems in presence of the fractional doppler,","venue":null,"work_id":"080d83a4-4317-43fc-9656-422a2bc3c98b","year":2021},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.812738Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:2ff1bfc07f281c6940e0bce9494c7940e87555957f3cde769f20b225eecdc6b2","observation_id":"a1ebeb02-feb8-49fa-a2af-8b78320f8c75","resolution":{"observed_at":"2026-08-15T23:29:54.215872Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.196660Z","title":"A tensor framework for multi-lin ear complex MMSE estimation,","venue":null,"work_id":"46d5f05b-9bb1-4ff9-a954-69aa46bbbe7b","year":2021},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.817137Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:da06718ebad48afc5ba4c3b50d671a3eac3dee02a3e94bd7511acb3cecbea30b","observation_id":"54f454cb-7091-4a3c-ad0a-9997a6a145b6","resolution":{"observed_at":"2026-08-15T23:29:54.201243Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.183111Z","title":"Solving mul tilinear systems via tensor inversion,","venue":null,"work_id":"6b523181-a656-49a5-9717-00003de44a06","year":2013},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.822361Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:29311978d3a8d02b422ff1e914f73228129df04acc212fd1e80f803b90073e99","observation_id":"e94c6ed3-75f6-4da8-a7cb-e9114f302de3","resolution":{"observed_at":"2026-08-15T23:29:54.187538Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.169124Z","title":"Tensor inversio n and its application to the tensor equations with Einstein product,","venue":null,"work_id":"57acc3cb-3d30-402f-b81b-cd2ae7b78c8d","year":2019},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.826651Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:a0f775205d3ad721e309ad4c56464feb21567742d6ca04fd456d6fcb7e6892ad","observation_id":"85029332-767e-44da-884f-3d422e6ac99d","resolution":{"observed_at":"2026-08-15T23:29:54.173809Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.154866Z","title":"First- and second-order characterization of direction disper- sion and space selectivity in the radio channel,","venue":null,"work_id":"8dc0ecc0-c523-4166-ab27-60821abfae7b","year":2027},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.830948Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:cf149d2fc4d07743b6a256dc34ea04ccdc2d15b7cae408e619aa87d14f413f55","observation_id":"10060692-0143-41fe-92fc-859eaa1c282b","resolution":{"observed_at":"2026-08-15T23:29:54.159422Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.140711Z","title":"Channel estimation f or LEO satellite massive MIMO-OFDM communications,","venue":null,"work_id":"b05227a0-fb8e-41e3-8fb4-4345c74a4c40","year":2023},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.836234Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:95d62bf9e3ddd108bc9c84a69480816d5d4eefba54fd01fdf484d6b31b645bd4","observation_id":"2928b91c-0a67-4352-abb1-99bb140ac031","resolution":{"observed_at":"2026-08-15T23:29:54.145412Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.126338Z","title":"3D MIMO-OFDM channel estimation,","venue":null,"work_id":"79e611b0-1454-4666-a2fa-ada4855e819d","year":2012},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.840699Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:0a188fa85c3a7a41480a51691924f390f587f9cf27f2335ad703b9e491705ba8","observation_id":"86ae5c59-c626-47bf-96b1-0036cab4311e","resolution":{"observed_at":"2026-08-15T23:29:54.130923Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.112458Z","title":"Polyphase codes with good periodic correlatio n properties (corresp.),","venue":null,"work_id":"34bbcc45-4134-407b-bb08-b9303db364f3","year":1972},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.845950Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:09b05f0af9bb80846c8636aefa4c336f3406c327a6e7eafa91db77275aa0758c","observation_id":"74129bc3-5927-4057-9a26-77f6d4faf490","resolution":{"observed_at":"2026-08-15T23:29:54.117018Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.098415Z","title":"Dahlman, S","venue":null,"work_id":"afacb545-ca31-43ac-ad22-c2da8198068f","year":2020},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.850087Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:7626af4b96f40305cffb6e8112d29ee1921146b2d844a7b07b4f1e031cd9a44a","observation_id":"6bb2b703-e863-4ec5-aace-e680736207ff","resolution":{"observed_at":"2026-08-15T23:29:54.103450Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.084629Z","title":"Optimal training de sign for MIMO OFDM systems in mobile wireless channels,","venue":null,"work_id":"a52e1df2-5aef-419b-ac82-e2c62e39a65c","year":2003},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.854427Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:073d0c7249e2338679a9ae93decd3e270207a7e9b52bd5ec2a21d2e3ba66f07b","observation_id":"a49fa868-8e2f-4098-a8c6-bc2d86c0c7a0","resolution":{"observed_at":"2026-08-15T23:29:54.089191Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.070486Z","title":"Low complexity modem structure for OFDM-based orthog- onal time frequency space modulation,","venue":null,"work_id":"774e75ff-1fe2-473b-9e90-fa60cb291805","year":2018},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.859574Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:3c43929f7fd39214ca6d699be0b3e6f0f07c72f65376e5a675521b15a2ba10bf","observation_id":"87b252f3-1634-49e9-b2f4-d3b2c91ba698","resolution":{"observed_at":"2026-08-15T23:29:54.075595Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.057288Z","title":"Multi-domain com munication systems and networks: A tensor-based approach,","venue":null,"work_id":"70d689b3-1774-4099-84b8-985cb9a8cfa8","year":2021},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.863916Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:1b906558d89351da8dcfda2e1764cd1c262e763016092f852692dda667ee5594","observation_id":"a30c46dc-f115-42b7-9c9a-f73a54e716c2","resolution":{"observed_at":"2026-08-15T23:29:54.061763Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.043368Z","title":"Weighted-Graph-Co loring- Based pilot decontamination for multicell massive MIMO sys tems,","venue":null,"work_id":"ac82302b-c64a-429d-94dd-840a457a2dd8","year":2017},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.868367Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:a37eab711d0e054963b5b3ab347e30ccfebcaa1e51589c1d12062d70e4ba0232","observation_id":"227779ea-529d-4d07-9d66-655069444c04","resolution":{"observed_at":"2026-08-15T23:29:54.047730Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.028530Z","title":"Tensor decomposition for signal pr ocessing and machine learning,","venue":null,"work_id":"c6f528d4-90cf-4f96-a63a-f838062a96c6","year":2017},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.872577Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:a0e54d2c0486d2f775e744aa2a775f6f58f7aa0c9930c447277d9f70f86fc71c","observation_id":"40e33fbc-6de9-491a-b293-43c042cb38d4","resolution":{"observed_at":"2026-08-15T23:29:54.033465Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:54.013140Z","title":"Amari and H","venue":null,"work_id":"490e5684-ea49-4a54-a9d4-2ad2346a505c","year":2000},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.877813Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:8b5bd6343300709c459d03aeb99a70ae3810bdf737f34c42e7d45532ebe7e3dd","observation_id":"97a61d0b-9c9d-4738-958c-4a9837250782","resolution":{"observed_at":"2026-08-15T23:29:54.018253Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:53.997646Z","title":"Information geometrical framework to analy ze the belief propagation algorithm,","venue":null,"work_id":"ff57b4ed-f931-4937-9bc7-aa3d94755d5e","year":2004},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":44,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.882287Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:c0b35bca8567fd9d1ed9a08ac87f7fb9407e0823e59eea6db6285a651c6f30ba","observation_id":"4c168d19-d4e2-4413-bb97-45401bedec4a","resolution":{"observed_at":"2026-08-15T23:29:54.002749Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:53.982245Z","title":"Q uaDRiGa: A 3- D multi-cell channel model with time evolution for enabling virtual field trials,","venue":null,"work_id":"f069ff05-ea6a-40c5-9142-7d55129d8c8c","year":2014},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":45,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.887279Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:c17011bbe55a7a1793304a421167fb799a6989d9b6fee8023761edbef5fde194","observation_id":"485baf68-197b-43cb-9fbe-c9a0a1f71959","resolution":{"observed_at":"2026-08-15T23:29:53.987844Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+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":"2026-08-15T23:29:53.967895Z","title":"A GAMP-bas ed low complexity sparse Bayesian learning algorithm,","venue":null,"work_id":"60f6eca6-37a6-4f2b-9fa3-d66d92a458eb","year":2018},"citing_paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots","version":1},"reference_index":46,"source":"pdf_text","source_observed_at":"2026-08-15T23:29:53.891586Z"},"links":{"citing_paper":"/paper/2505.04933"},"observation_digest":"sha256:e776607ac5e293de42acf999cae00722437810e2d7472575c0f30a352caf1808","observation_id":"bb2b3e2a-2799-4953-9c1d-579f3d106861","resolution":{"observed_at":"2026-08-15T23:29:53.972479Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2505.04933","last_updated":"2025-05-08T04:24:21Z","latest_version":1,"primary_category":"cs.IT","snapshot_observed_at":"2026-08-15T23:15:32.885744Z","submitted_at":"2025-05-08T04:24:21Z","title":"Massive MIMO-OFDM Channel Acquisition with Time-Frequency Phase-Shifted Pilots"},"reference_resolution":{"displayed":46,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":1,"verified_exact":2,"verified_fuzzy":43},"total_outbound_references":46},"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":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"thesis":"As of 18 August 2026, this Paper Citation Record lists 46 of 46 outbound references and 0 inbound Pith citation observations for arXiv:2505.04933."}