{"id":"https://openalex.org/W3001389283","doi":"https://doi.org/10.1109/sam48682.2020.9104260","title":"PARAFAC-Based Channel Estimation for Intelligent Reflective Surface Assisted MIMO System","display_name":"PARAFAC-Based Channel Estimation for Intelligent Reflective Surface Assisted MIMO System","publication_year":2020,"publication_date":"2020-06-01","ids":{"openalex":"https://openalex.org/W3001389283","doi":"https://doi.org/10.1109/sam48682.2020.9104260","mag":"3001389283"},"language":"en","primary_location":{"id":"doi:10.1109/sam48682.2020.9104260","is_oa":false,"landing_page_url":"https://doi.org/10.1109/sam48682.2020.9104260","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2001.06554.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5071870823","display_name":"Gilderlan T. de Ara\u00fajo","orcid":"https://orcid.org/0000-0001-7210-0631"},"institutions":[{"id":"https://openalex.org/I3018325552","display_name":"Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia do Cear\u00e1","ror":"https://ror.org/02225fd27","country_code":"BR","type":"government","lineage":["https://openalex.org/I3018325552"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Gilderlan T. de Araujo","raw_affiliation_strings":["Federal Institute of Cear\u00e1, Canind\u00e9, Brazil","Federal Institute of Cear\u00e1,Canind\u00e9,Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Federal Institute of Cear\u00e1, Canind\u00e9, Brazil","institution_ids":["https://openalex.org/I3018325552"]},{"raw_affiliation_string":"Federal Institute of Cear\u00e1,Canind\u00e9,Brazil","institution_ids":["https://openalex.org/I3018325552"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5051813339","display_name":"Andr\u00e9 L. F. de Almeida","orcid":"https://orcid.org/0000-0002-3149-6307"},"institutions":[{"id":"https://openalex.org/I243754102","display_name":"Universidade Federal do Cear\u00e1","ror":"https://ror.org/03srtnf24","country_code":"BR","type":"education","lineage":["https://openalex.org/I243754102"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Andre L. F. de Almeida","raw_affiliation_strings":["Federal University of Cear\u00e1, Fortaleza, Brazil","Federal University of Cear\u00e1 Fortaleza, Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Federal University of Cear\u00e1, Fortaleza, Brazil","institution_ids":["https://openalex.org/I243754102"]},{"raw_affiliation_string":"Federal University of Cear\u00e1 Fortaleza, Brazil","institution_ids":["https://openalex.org/I243754102"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.6543,"has_fulltext":true,"cited_by_count":19,"citation_normalized_percentile":{"value":0.91964286,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12303","display_name":"Tensor decomposition and applications","score":0.9921000003814697,"subfield":{"id":"https://openalex.org/subfields/2605","display_name":"Computational Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12303","display_name":"Tensor decomposition and applications","score":0.9921000003814697,"subfield":{"id":"https://openalex.org/subfields/2605","display_name":"Computational Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10739","display_name":"Electromagnetic Scattering and Analysis","score":0.9865000247955322,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.8171653747558594},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.7250813245773315},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6485430598258972},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.6147807240486145},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.5625557899475098},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.5613465309143066},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.528296709060669},{"id":"https://openalex.org/keywords/communications-system","display_name":"Communications system","score":0.48728859424591064},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.47457268834114075},{"id":"https://openalex.org/keywords/tensor","display_name":"Tensor (intrinsic definition)","score":0.44925200939178467},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.42424845695495605},{"id":"https://openalex.org/keywords/surface","display_name":"Surface (topology)","score":0.42172858119010925},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3487541079521179},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.18732920289039612},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.13621291518211365},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12885674834251404}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.8171653747558594},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.7250813245773315},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6485430598258972},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.6147807240486145},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.5625557899475098},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.5613465309143066},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.528296709060669},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.48728859424591064},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.47457268834114075},{"id":"https://openalex.org/C155281189","wikidata":"https://www.wikidata.org/wiki/Q3518150","display_name":"Tensor (intrinsic definition)","level":2,"score":0.44925200939178467},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.42424845695495605},{"id":"https://openalex.org/C2776799497","wikidata":"https://www.wikidata.org/wiki/Q484298","display_name":"Surface (topology)","level":2,"score":0.42172858119010925},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3487541079521179},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.18732920289039612},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.13621291518211365},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12885674834251404},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/sam48682.2020.9104260","is_oa":false,"landing_page_url":"https://doi.org/10.1109/sam48682.2020.9104260","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM)","raw_type":"proceedings-article"},{"id":"mag:3001389283","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/2001.06554.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},{"id":"doi:10.48550/arxiv.2001.06554","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2001.06554","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"mag:3001389283","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/2001.06554.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W2024165284","https://openalex.org/W2105033490","https://openalex.org/W2121739212","https://openalex.org/W2199557176","https://openalex.org/W2469230926","https://openalex.org/W2945314493","https://openalex.org/W2974797780","https://openalex.org/W2995836572","https://openalex.org/W3031302733","https://openalex.org/W3100075210"],"related_works":["https://openalex.org/W3035217884","https://openalex.org/W3138052331","https://openalex.org/W3139434649","https://openalex.org/W3127944616","https://openalex.org/W3108514459","https://openalex.org/W3171598884","https://openalex.org/W3206518837","https://openalex.org/W3033393355","https://openalex.org/W3195762879","https://openalex.org/W3036622236","https://openalex.org/W2038872842","https://openalex.org/W2856066560","https://openalex.org/W32722540","https://openalex.org/W3000142960","https://openalex.org/W1480654515","https://openalex.org/W2460874819","https://openalex.org/W3035697429","https://openalex.org/W3092431846","https://openalex.org/W2108449060","https://openalex.org/W3122591164"],"abstract_inverted_index":{"Intelligent":[0],"reflective":[1],"surface":[2],"(IRS)":[3],"is":[4],"an":[5,74],"emergent":[6],"technology":[7],"for":[8,73],"future":[9],"wireless":[10],"communications.":[11],"It":[12],"consists":[13],"of":[14,19,28,51,58,86,124],"a":[15,82,99],"large":[16],"2D":[17],"array":[18],"passive":[20],"scattering":[21],"elements":[22],"that":[23,32,94,105],"control":[24],"the":[25,33,39,56,59,95,111,122,125,132],"electromagnetic":[26],"properties":[27],"radio-frequency":[29],"waves":[30],"so":[31],"reflected":[34],"signals":[35],"add":[36],"coherently":[37],"at":[38],"intended":[40],"receiver":[41],"or":[42,117],"destructively":[43],"to":[44,109],"reduce":[45],"co-channel":[46],"interference.":[47],"The":[48],"promised":[49],"gains":[50],"IRS-assisted":[52,75],"communications":[53],"depend":[54],"on":[55],"accuracy":[57],"channel":[60,70,127],"state":[61],"information.":[62],"In":[63],"this":[64],"paper,":[65],"we":[66,92],"propose":[67],"two":[68],"novel":[69],"estimation":[71,128],"methods":[72,129],"multiple-input":[76],"multiple-output":[77],"(MIMO)":[78],"communication":[79,113],"system.":[80],"Assuming":[81],"structured":[83],"time-domain":[84],"pattern":[85],"pilots":[87],"and":[88,130],"IRS":[89],"phase":[90],"shifts,":[91],"show":[93],"received":[96],"signal":[97],"follows":[98],"parallel":[100],"factor":[101],"(PARAFAC)":[102],"tensor":[103],"model":[104],"can":[106],"be":[107],"exploited":[108],"estimate":[110],"involved":[112,133],"channels":[114],"in":[115],"closed-form":[116],"iteratively.":[118],"Numerical":[119],"results":[120],"corroborate":[121],"effectiveness":[123],"proposed":[126],"highlight":[131],"tradeoffs.":[134]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1}],"updated_date":"2026-08-11T07:18:39.950985","created_date":"2025-10-10T00:00:00"}
