{"id":"https://openalex.org/W4400877493","doi":"https://doi.org/10.1109/twc.2024.3427695","title":"Practical RIS-Aided Multiuser Communications With Imperfect CSI: Practical Model, Amplitude Feedback, and Beamforming Optimization","display_name":"Practical RIS-Aided Multiuser Communications With Imperfect CSI: Practical Model, Amplitude Feedback, and Beamforming Optimization","publication_year":2024,"publication_date":"2024-07-22","ids":{"openalex":"https://openalex.org/W4400877493","doi":"https://doi.org/10.1109/twc.2024.3427695"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2024.3427695","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3427695","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Transactions on Wireless Communications","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/A5100401753","display_name":"Qian Zhang","orcid":"https://orcid.org/0009-0006-5257-9204"},"institutions":[{"id":"https://openalex.org/I154099455","display_name":"Shandong University","ror":"https://ror.org/0207yh398","country_code":"CN","type":"education","lineage":["https://openalex.org/I154099455"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Qian Zhang","raw_affiliation_strings":["School of Information Science and Engineering, Shandong University, Qingdao, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Shandong University, Qingdao, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100763011","display_name":"Ju Liu","orcid":"https://orcid.org/0000-0003-3160-9233"},"institutions":[{"id":"https://openalex.org/I154099455","display_name":"Shandong University","ror":"https://ror.org/0207yh398","country_code":"CN","type":"education","lineage":["https://openalex.org/I154099455"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ju Liu","raw_affiliation_strings":["School of Information Science and Engineering, Shandong University, Qingdao, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Shandong University, Qingdao, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111264614","display_name":"Haoge Tang","orcid":null},"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":"Haoge Tang","raw_affiliation_strings":["School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090040619","display_name":"Zheng Dong","orcid":"https://orcid.org/0000-0002-9224-324X"},"institutions":[{"id":"https://openalex.org/I154099455","display_name":"Shandong University","ror":"https://ror.org/0207yh398","country_code":"CN","type":"education","lineage":["https://openalex.org/I154099455"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zheng Dong","raw_affiliation_strings":["School of Information Science and Engineering, Shandong University, Qingdao, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Shandong University, Qingdao, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100448724","display_name":"Yonghui Li","orcid":"https://orcid.org/0000-0001-7702-1123"},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"The University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Yonghui Li","raw_affiliation_strings":["School of Electrical and Information Engineering, The University of Sydney, Sydney, Australia"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Information Engineering, The University of Sydney, Sydney, Australia","institution_ids":["https://openalex.org/I129604602"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100401753"],"corresponding_institution_ids":["https://openalex.org/I154099455"],"apc_list":null,"apc_paid":null,"fwci":2.094,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.87750213,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"23","issue":"10","first_page":"15245","last_page":"15260"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9987999796867371,"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"}},"topics":[{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9987999796867371,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.998199999332428,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9977999925613403,"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/beamforming","display_name":"Beamforming","score":0.7911436557769775},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6921709179878235},{"id":"https://openalex.org/keywords/imperfect","display_name":"Imperfect","score":0.6278948187828064},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.39212700724601746},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3331700563430786},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.33068668842315674},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.17436346411705017},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.10967651009559631}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.7911436557769775},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6921709179878235},{"id":"https://openalex.org/C2780310539","wikidata":"https://www.wikidata.org/wiki/Q12547192","display_name":"Imperfect","level":2,"score":0.6278948187828064},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.39212700724601746},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3331700563430786},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.33068668842315674},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.17436346411705017},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10967651009559631},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2024.3427695","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3427695","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Transactions on Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8300501349","display_name":null,"funder_award_id":"62071275","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"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W250076511","https://openalex.org/W1518945650","https://openalex.org/W1970830346","https://openalex.org/W1996206349","https://openalex.org/W1999833500","https://openalex.org/W2103972037","https://openalex.org/W2106929598","https://openalex.org/W2320703891","https://openalex.org/W2770606349","https://openalex.org/W2788350651","https://openalex.org/W2891191577","https://openalex.org/W2946695271","https://openalex.org/W2950077417","https://openalex.org/W2969424089","https://openalex.org/W2981174761","https://openalex.org/W2990747873","https://openalex.org/W3005112765","https://openalex.org/W3005476696","https://openalex.org/W3010985552","https://openalex.org/W3015843747","https://openalex.org/W3021024154","https://openalex.org/W3032518138","https://openalex.org/W3033425325","https://openalex.org/W3034533409","https://openalex.org/W3035049807","https://openalex.org/W3039402952","https://openalex.org/W3082909930","https://openalex.org/W3084194173","https://openalex.org/W3117633996","https://openalex.org/W3133878048","https://openalex.org/W3154003282","https://openalex.org/W3163555793","https://openalex.org/W3199166544","https://openalex.org/W4248288458","https://openalex.org/W4250589301","https://openalex.org/W4285281465","https://openalex.org/W4300223101","https://openalex.org/W4301441647","https://openalex.org/W4310501683","https://openalex.org/W4313001863","https://openalex.org/W4322576964","https://openalex.org/W4323022529","https://openalex.org/W4367663276","https://openalex.org/W4381785979","https://openalex.org/W4387869979","https://openalex.org/W4392909925"],"related_works":["https://openalex.org/W2374250903","https://openalex.org/W2963170046","https://openalex.org/W1546413948","https://openalex.org/W2376244802","https://openalex.org/W2263832889","https://openalex.org/W2243884323","https://openalex.org/W42072456","https://openalex.org/W2923631784","https://openalex.org/W4243095785","https://openalex.org/W818226659"],"abstract_inverted_index":{"Reconfigurable":[0],"intelligent":[1],"surfaces":[2],"(RIS)":[3],"can":[4,181],"dynamically":[5],"reconstruct":[6],"wireless":[7],"environments":[8],"to":[9,81,126,139,166,193],"enhance":[10],"spectral":[11],"efficiency.":[12],"However,":[13],"most":[14],"existing":[15,194],"studies":[16],"have":[17],"ignored":[18],"the":[19,22,30,37,45,53,73,77,83,88,100,106,128,141,146,150,155,162,184],"impact":[20],"of":[21,29,47,94,102,159,188],"phase":[23,61,80,85,90,158],"error":[24],"and":[25,79,119,149,157,161,178],"imperfect":[26],"amplitude":[27,66,78,103,156],"gain":[28],"RIS.":[31],"In":[32],"this":[33],"paper,":[34],"we":[35],"investigate":[36],"practical":[38],"RIS-aided":[39],"multiuser":[40],"communication":[41],"systems":[42],"by":[43,71,98],"maximizing":[44],"sum":[46,190],"users\u2019":[48],"average":[49,129],"achievable":[50,124,130,189],"rate,":[51],"filling":[52],"current":[54],"research":[55],"gap.":[56],"Specifically,":[57],"a":[58,111],"novel":[59],"RIS":[60,168],"shift":[62,86],"design":[63,114,153],"approach,":[64],"namely":[65],"feedback":[67],"(AF),":[68],"is":[69,96,137,164],"proposed":[70,138,175],"utilizing":[72],"coupling":[74],"relationship":[75],"between":[76,154],"derive":[82],"optimal":[84,142,151],"under":[87],"worst":[89],"error.":[91],"The":[92],"feasibility":[93],"AF":[95,176],"demonstrated":[97],"proving":[99],"measurability":[101],"response":[104],"through":[105],"electromagnetic":[107],"theory.":[108],"We":[109],"propose":[110],"channel":[112],"estimation":[113],"with":[115],"low":[116],"pilot":[117],"overhead":[118],"provide":[120],"an":[121,133],"effective":[122],"closed-form":[123,143],"rate":[125,191],"approximate":[127],"rate.":[131],"Moreover,":[132],"efficient":[134],"optimization":[135,179],"algorithm":[136,163,180],"achieve":[140],"precoding":[144],"at":[145],"base":[147],"station":[148],"trade-off":[152],"RIS,":[160],"extended":[165],"active":[167],"systems.":[169],"Numerical":[170],"results":[171],"demonstrate":[172],"that":[173],"our":[174],"method":[177],"efficiently":[182],"improve":[183],"performance":[185],"in":[186],"terms":[187],"compared":[192],"methods.":[195]},"counts_by_year":[{"year":2025,"cited_by_count":6}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}
