{"id":"https://openalex.org/W2981792785","doi":"https://doi.org/10.1109/lwc.2019.2948632","title":"Cascaded Channel Estimation for Large Intelligent Metasurface Assisted Massive MIMO","display_name":"Cascaded Channel Estimation for Large Intelligent Metasurface Assisted Massive MIMO","publication_year":2019,"publication_date":"2019-10-22","ids":{"openalex":"https://openalex.org/W2981792785","doi":"https://doi.org/10.1109/lwc.2019.2948632","mag":"2981792785"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2019.2948632","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2019.2948632","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Wireless Communications Letters","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102895986","display_name":"Zhen-Qing He","orcid":"https://orcid.org/0000-0003-1408-2134"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhen-Qing He","raw_affiliation_strings":["Center for Intelligent Networking and Communications, National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Intelligent Networking and Communications, National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5063946480","display_name":"Xiaojun Yuan","orcid":"https://orcid.org/0000-0002-0433-6535"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaojun Yuan","raw_affiliation_strings":["Center for Intelligent Networking and Communications, National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-0433-6535","affiliations":[{"raw_affiliation_string":"Center for Intelligent Networking and Communications, National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I150229711"],"apc_list":null,"apc_paid":null,"fwci":44.5796,"has_fulltext":false,"cited_by_count":825,"citation_normalized_percentile":{"value":0.99954784,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"9","issue":"2","first_page":"210","last_page":"214"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10069","display_name":"Antenna Design and Analysis","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.8317246437072754},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7412368655204773},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6715799570083618},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.6683022975921631},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.5058188438415527},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.4848879277706146},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4187050461769104},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.33450940251350403},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2575297951698303},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09175616502761841},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.0714191198348999}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.8317246437072754},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7412368655204773},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6715799570083618},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.6683022975921631},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.5058188438415527},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.4848879277706146},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4187050461769104},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.33450940251350403},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2575297951698303},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09175616502761841},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0714191198348999},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2019.2948632","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2019.2948632","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3738287161","display_name":null,"funder_award_id":"2018YFB1801105","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G8382886","display_name":null,"funder_award_id":"61801084","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1510028821","https://openalex.org/W2095843437","https://openalex.org/W2103972604","https://openalex.org/W2112447569","https://openalex.org/W2160547390","https://openalex.org/W2553591559","https://openalex.org/W2592860706","https://openalex.org/W2603974018","https://openalex.org/W2611311577","https://openalex.org/W2805166665","https://openalex.org/W2950077417","https://openalex.org/W2964014592","https://openalex.org/W2969424089","https://openalex.org/W3104632017","https://openalex.org/W4288365549","https://openalex.org/W6676727762","https://openalex.org/W6736092261"],"related_works":["https://openalex.org/W2355663289","https://openalex.org/W2982399888","https://openalex.org/W2106913410","https://openalex.org/W4380372336","https://openalex.org/W2354248671","https://openalex.org/W2359134391","https://openalex.org/W2594116857","https://openalex.org/W2947628004","https://openalex.org/W2059045613","https://openalex.org/W2502435347"],"abstract_inverted_index":{"In":[0],"this":[1,25],"letter,":[2],"we":[3,63],"consider":[4],"the":[5,29,44,69,72,99],"problem":[6,26],"of":[7,24,36,71],"channel":[8,105],"estimation":[9,70,106],"for":[10,68,107],"large":[11,34],"intelligent":[12],"metasurface":[13],"(LIM)":[14],"assisted":[15],"massive":[16,109],"multiple-input":[17],"multiple-output":[18],"(MIMO)":[19],"systems.":[20,111],"The":[21],"main":[22],"challenge":[23],"is":[27],"that":[28,83,98],"LIM":[30],"integrated":[31],"with":[32,61],"a":[33,65,80,85,91],"number":[35],"low-cost":[37],"metamaterial":[38],"antennas":[39],"can":[40,102],"only":[41],"passively":[42],"reflect":[43],"incident":[45],"signals":[46],"by":[47],"certain":[48],"phase":[49],"shifts,":[50],"and":[51,74,78,90],"does":[52],"not":[53],"have":[54],"any":[55],"signal":[56],"processing":[57],"capability.":[58],"To":[59],"deal":[60],"this,":[62],"introduce":[64],"general":[66],"framework":[67],"transmitter-LIM":[73],"LIM-receiver":[75],"cascaded":[76],"channel,":[77],"propose":[79],"two-stage":[81],"algorithm":[82],"includes":[84],"sparse":[86],"matrix":[87,92],"factorization":[88],"stage":[89],"completion":[93],"stage.":[94],"Simulation":[95],"results":[96],"illustrate":[97],"proposed":[100],"method":[101],"achieve":[103],"accurate":[104],"LIM-assisted":[108],"MIMO":[110]},"counts_by_year":[{"year":2026,"cited_by_count":18},{"year":2025,"cited_by_count":67},{"year":2024,"cited_by_count":108},{"year":2023,"cited_by_count":144},{"year":2022,"cited_by_count":147},{"year":2021,"cited_by_count":176},{"year":2020,"cited_by_count":140},{"year":2019,"cited_by_count":25}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}