{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T14:45:30Z","timestamp":1784213130986,"version":"3.55.0"},"reference-count":44,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","issue":"7","license":[{"start":{"date-parts":[[2022,7,1]],"date-time":"2022-07-01T00:00:00Z","timestamp":1656633600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"DOI":"10.13039\/100010686","name":"Academy of Finland (EERA project), European Union\u2019s Horizon 2020 Framework Programme for Research and Innovation","doi-asserted-by":"publisher","award":["871464"],"award-info":[{"award-number":["871464"]}],"id":[{"id":"10.13039\/100010686","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002341","name":"Academy of Finland 6Genesis Flagship","doi-asserted-by":"publisher","award":["318927"],"award-info":[{"award-number":["318927"]}],"id":[{"id":"10.13039\/501100002341","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002322","name":"CAPES","doi-asserted-by":"publisher","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]},{"name":"CNPq Brazil"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Trans. Commun."],"published-print":{"date-parts":[[2022,7]]},"DOI":"10.1109\/tcomm.2022.3176654","type":"journal-article","created":{"date-parts":[[2022,5,20]],"date-time":"2022-05-20T19:32:26Z","timestamp":1653075146000},"page":"4793-4806","source":"Crossref","is-referenced-by-count":77,"title":["Two-Stage Channel Estimation for Hybrid RIS Assisted MIMO Systems"],"prefix":"10.1109","volume":"70","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1119-5224","authenticated-orcid":false,"given":"Rafaela","family":"Schroeder","sequence":"first","affiliation":[{"name":"Centre for Wireless Communications-Radio Technologies, University of Oulu, Oulu, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiguang","family":"He","sequence":"additional","affiliation":[{"name":"Technology Innovation Institute, Abu Dhabi, United Arab Emirates"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6006-4274","authenticated-orcid":false,"given":"Glauber","family":"Brante","sequence":"additional","affiliation":[{"name":"Graduate Program in Electrical and Computer Engineering, Federal University of Technology—Paraná, Curitiba, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5413-1896","authenticated-orcid":false,"given":"Markku","family":"Juntti","sequence":"additional","affiliation":[{"name":"Centre for Wireless Communications-Radio Technologies, University of Oulu, Oulu, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"263","reference":[{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1016\/j.sigpro.2019.04.024"},{"key":"ref38","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2020.2999624"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2016.2557791"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1109\/OJCOMS.2020.2992791"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1109\/ICASSP40776.2020.9053695"},{"key":"ref30","article-title":"Channel estimation for hybrid RIS aided MIMO communications via atomic norm minimization","author":"schroeder","year":"2021","journal-title":"arXiv 2106 10909"},{"key":"ref37","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.1986.1143830"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2018.2864737"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2015.2420541"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1109\/MSP.2019.2962209"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2018.1700659"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2020.3002557"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1109\/LSP.2021.3059363"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2020.3004197"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2020.2969664"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2019.2943559"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1109\/MVT.2020.3023682"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1109\/WCNCW48565.2020.9124848"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2020.3001125"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2021.3070064"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2019.2948632"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2021.3053580"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/JSTSP.2014.2334278"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2022.3158686"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1109\/TMTT.2019.2899846"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1109\/GLOBECOM42002.2020.9348112"},{"key":"ref29","article-title":"Hybrid reconfigurable intelligent metasurfaces: Enabling simultaneous tunable reflections and sensing for 6G wireless communications","author":"alexandropoulos","year":"2021","journal-title":"arXiv 2104 04690"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2020.3000814"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3032775"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2019.2936025"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2013.2260813"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1109\/JSTSP.2016.2523924"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2019.2935192"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1109\/TCCN.2021.3072895"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1109\/ICC40277.2020.9149292"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1109\/JSTSP.2021.3061274"},{"key":"ref24","article-title":"Enabling large intelligent surfaces with compressive sensing and deep learning","author":"taha","year":"2019","journal-title":"arXiv 1904 10136"},{"key":"ref42","doi-asserted-by":"publisher","DOI":"10.1109\/GLOCOM.2017.8254898"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2019.2961357"},{"key":"ref41","author":"kay","year":"1993","journal-title":"Fundamentals of Statistical Signal Processing"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1109\/VTC2021-Spring51267.2021.9448802"},{"key":"ref44","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2017.2720856"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1109\/ICASSP40776.2020.9053976"},{"key":"ref43","first-page":"1436","article-title":"Energy and spectral efficiency of very large multiuser MIMO systems","volume":"61","author":"ngo","year":"2012","journal-title":"IEEE Trans Commun"}],"container-title":["IEEE Transactions on Communications"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/26\/9830596\/09779152.pdf?arnumber=9779152","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,8,29]],"date-time":"2022-08-29T21:36:52Z","timestamp":1661809012000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/9779152\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,7]]},"references-count":44,"journal-issue":{"issue":"7"},"URL":"https:\/\/doi.org\/10.1109\/tcomm.2022.3176654","relation":{},"ISSN":["0090-6778","1558-0857"],"issn-type":[{"value":"0090-6778","type":"print"},{"value":"1558-0857","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,7]]}}}