{"id":"https://openalex.org/W3055212781","doi":"https://doi.org/10.1109/globecom42002.2020.9322316","title":"Intelligent Reflecting Surface Assisted MISO Downlink: Channel Estimation and Asymptotic Analysis","display_name":"Intelligent Reflecting Surface Assisted MISO Downlink: Channel Estimation and Asymptotic Analysis","publication_year":2020,"publication_date":"2020-12-01","ids":{"openalex":"https://openalex.org/W3055212781","doi":"https://doi.org/10.1109/globecom42002.2020.9322316","mag":"3055212781"},"language":"en","primary_location":{"id":"doi:10.1109/globecom42002.2020.9322316","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom42002.2020.9322316","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2020 - 2020 IEEE Global Communications Conference","raw_type":"proceedings-article"},"type":"preprint","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2008.08160","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5000188182","display_name":"Bayan Al-Nahhas","orcid":"https://orcid.org/0000-0001-9782-3297"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]},{"id":"https://openalex.org/I4405260628","display_name":"University of British Columbia, Okanagan Campus","ror":"https://ror.org/04241wz75","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Bayan Al-Nahhas","raw_affiliation_strings":["School of Engineering, University of British Columbia, Kelowna, Canada","University of British Columbia,School of Engineering,Kelowna,Canada"],"affiliations":[{"raw_affiliation_string":"School of Engineering, University of British Columbia, Kelowna, Canada","institution_ids":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]},{"raw_affiliation_string":"University of British Columbia,School of Engineering,Kelowna,Canada","institution_ids":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043864610","display_name":"Qurrat-Ul-Ain Nadeem","orcid":"https://orcid.org/0000-0001-8423-3482"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]},{"id":"https://openalex.org/I4405260628","display_name":"University of British Columbia, Okanagan Campus","ror":"https://ror.org/04241wz75","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Qurrat-Ul-Ain Nadeem","raw_affiliation_strings":["School of Engineering, University of British Columbia, Kelowna, Canada","University of British Columbia,School of Engineering,Kelowna,Canada"],"affiliations":[{"raw_affiliation_string":"School of Engineering, University of British Columbia, Kelowna, Canada","institution_ids":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]},{"raw_affiliation_string":"University of British Columbia,School of Engineering,Kelowna,Canada","institution_ids":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044765621","display_name":"Anas Chaaban","orcid":"https://orcid.org/0000-0002-8713-5084"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]},{"id":"https://openalex.org/I4405260628","display_name":"University of British Columbia, Okanagan Campus","ror":"https://ror.org/04241wz75","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Anas Chaaban","raw_affiliation_strings":["School of Engineering, University of British Columbia, Kelowna, Canada",", University of British Columbia"],"affiliations":[{"raw_affiliation_string":"School of Engineering, University of British Columbia, Kelowna, Canada","institution_ids":["https://openalex.org/I141945490","https://openalex.org/I4405260628"]},{"raw_affiliation_string":", University of British Columbia","institution_ids":["https://openalex.org/I141945490"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5000188182"],"corresponding_institution_ids":["https://openalex.org/I141945490","https://openalex.org/I4405260628"],"apc_list":null,"apc_paid":null,"fwci":0.1037,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.42800153,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":93},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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":0.9998999834060669,"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/T12042","display_name":"Satellite Communication Systems","score":0.9739000201225281,"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/T12079","display_name":"IoT Networks and Protocols","score":0.9635000228881836,"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/rayleigh-fading","display_name":"Rayleigh fading","score":0.7652410864830017},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7594669461250305},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6204042434692383},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.5792542099952698},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5458283424377441},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.5085643529891968},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.47997331619262695},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4607056677341461},{"id":"https://openalex.org/keywords/asymptotic-analysis","display_name":"Asymptotic analysis","score":0.45560115575790405},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.446170449256897},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.4427452087402344},{"id":"https://openalex.org/keywords/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.4393449127674103},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4339238405227661},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.4034883379936218},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.36831605434417725},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.29139816761016846},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.13199740648269653},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.06104138493537903}],"concepts":[{"id":"https://openalex.org/C56985126","wikidata":"https://www.wikidata.org/wiki/Q854039","display_name":"Rayleigh fading","level":4,"score":0.7652410864830017},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7594669461250305},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6204042434692383},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.5792542099952698},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5458283424377441},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.5085643529891968},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.47997331619262695},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4607056677341461},{"id":"https://openalex.org/C205147927","wikidata":"https://www.wikidata.org/wiki/Q752718","display_name":"Asymptotic analysis","level":2,"score":0.45560115575790405},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.446170449256897},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.4427452087402344},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.4393449127674103},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4339238405227661},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.4034883379936218},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.36831605434417725},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.29139816761016846},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.13199740648269653},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.06104138493537903}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1109/globecom42002.2020.9322316","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom42002.2020.9322316","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2020 - 2020 IEEE Global Communications Conference","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:2008.08160","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2008.08160","pdf_url":"https://arxiv.org/pdf/2008.08160","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"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":null,"raw_type":"text"},{"id":"mag:3055212781","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/2008.08160.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"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":"pmh:oai:repository.kaust.edu.sa:10754/664814","is_oa":false,"landing_page_url":"http://hdl.handle.net/10754/664814","pdf_url":null,"source":{"id":"https://openalex.org/S4306401596","display_name":"King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I71920554","host_organization_name":"King Abdullah University of Science and Technology","host_organization_lineage":["https://openalex.org/I71920554"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference Paper"},{"id":"doi:10.48550/arxiv.2008.08160","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2008.08160","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"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":"article"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2008.08160","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2008.08160","pdf_url":"https://arxiv.org/pdf/2008.08160","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"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":null,"raw_type":"text"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3326829202","display_name":null,"funder_award_id":"OSR-2018-CRG7-3734","funder_id":"https://openalex.org/F4320322320","funder_display_name":"King Abdullah University of Science and Technology"}],"funders":[{"id":"https://openalex.org/F4320322320","display_name":"King Abdullah University of Science and Technology","ror":"https://ror.org/01q3tbs38"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3055212781.pdf","grobid_xml":"https://content.openalex.org/works/W3055212781.grobid-xml"},"referenced_works_count":19,"referenced_works":["https://openalex.org/W1974552031","https://openalex.org/W2084304524","https://openalex.org/W2148089951","https://openalex.org/W2924380766","https://openalex.org/W2937693915","https://openalex.org/W2950077417","https://openalex.org/W2963121727","https://openalex.org/W2963460596","https://openalex.org/W2964202286","https://openalex.org/W2969424089","https://openalex.org/W3005476696","https://openalex.org/W3017311957","https://openalex.org/W3021564798","https://openalex.org/W3034281970","https://openalex.org/W3103793889","https://openalex.org/W3111205328","https://openalex.org/W3134746776","https://openalex.org/W6761227893","https://openalex.org/W6781836615"],"related_works":["https://openalex.org/W3124068012","https://openalex.org/W3195377419","https://openalex.org/W2997481735","https://openalex.org/W3209091696","https://openalex.org/W3111205328","https://openalex.org/W3003180487","https://openalex.org/W1607914537","https://openalex.org/W1580963903","https://openalex.org/W3163336461","https://openalex.org/W114716423","https://openalex.org/W1688995944","https://openalex.org/W3182769870","https://openalex.org/W2611644685","https://openalex.org/W2886138704","https://openalex.org/W2787483705","https://openalex.org/W3103793889","https://openalex.org/W2588344934","https://openalex.org/W1917792997","https://openalex.org/W1520866085","https://openalex.org/W3011703370"],"abstract_inverted_index":{"This":[0],"work":[1],"makes":[2],"the":[3,8,29,68,71,75,85,94,100,110,115,134,146,149,159,162,172,185,188],"preliminary":[4],"contribution":[5],"of":[6,11,51,74,109,161,187],"studying":[7],"asymptotic":[9,119],"performance":[10,193],"a":[12,39,61,79,141],"multi-user":[13,40],"intelligent":[14],"reflecting":[15],"surface":[16],"(IRS)":[17],"assisted-multiple-input":[18],"single-output":[19],"(MISO)":[20],"downlink":[21],"system":[22,102],"under":[23,129,169],"imperfect":[24],"CSI.":[25],"We":[26,58,181],"first":[27],"extend":[28],"existing":[30],"least":[31],"squares":[32],"(LS)":[33],"ON/OFF":[34],"channel":[35,77,125,190],"estimation":[36,64],"protocol":[37],"to":[38],"system,":[41],"where":[42,67,104],"we":[43,105],"derive":[44,106],"minimum":[45],"mean":[46],"squared":[47],"error":[48],"(MMSE)":[49],"estimates":[50],"all":[52],"IRS-assisted":[53],"channels":[54],"over":[55],"multiple":[56],"sub-phases.":[57],"also":[59,182],"consider":[60],"low-complexity":[62],"direct":[63],"(DE)":[65],"scheme,":[66],"BS":[69,86],"obtains":[70],"MMSE":[72],"estimate":[73],"overall":[76,189],"in":[78,99,144,178],"single":[80],"sub-phase.":[81],"Under":[82],"both":[83],"protocols,":[84],"implements":[87],"maximum":[88],"ratio":[89,112],"transmission":[90],"(MRT)":[91],"precoding":[92],"while":[93],"IRS":[95,135,150,173],"design":[96],"is":[97],"studied":[98],"large":[101,196],"limit,":[103],"deterministic":[107,164],"equivalents":[108,165],"signal-to-interference-plus-noise":[111],"(SINR)":[113],"and":[114,166],"sum-rate.":[116],"The":[117],"derived":[118,163],"expressions,":[120],"which":[121],"depend":[122],"only":[123],"on":[124],"statistics,":[126],"reveal":[127],"that":[128,168,184],"Rayleigh":[130,170],"fading":[131],"IRS-to-users":[132],"channels,":[133],"phase-shift":[136],"values":[137],"do":[138],"not":[139],"play":[140],"significant":[142,177],"role":[143],"improving":[145],"sum-rate":[147],"but":[148],"still":[151],"provides":[152],"an":[153],"array":[154],"gain.":[155],"Simulation":[156],"results":[157],"confirm":[158],"accuracy":[160],"show":[167],"fading,":[171],"gains":[174],"are":[175],"more":[176],"noise-limited":[179],"scenarios.":[180],"conclude":[183],"DE":[186],"yields":[191],"better":[192],"when":[194],"considering":[195],"systems.":[197]},"counts_by_year":[{"year":2021,"cited_by_count":1}],"updated_date":"2026-03-26T15:22:09.906841","created_date":"2025-10-10T00:00:00"}
