{"id":"https://openalex.org/W4413359710","doi":"https://doi.org/10.1109/tvt.2025.3600955","title":"Multiuser MIMO-OFDM Communications Assisted by an Active RIS Using Practical Broadband Model","display_name":"Multiuser MIMO-OFDM Communications Assisted by an Active RIS Using Practical Broadband Model","publication_year":2025,"publication_date":"2025-08-20","ids":{"openalex":"https://openalex.org/W4413359710","doi":"https://doi.org/10.1109/tvt.2025.3600955"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2025.3600955","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2025.3600955","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","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/A5093812050","display_name":"Yonghua Quan","orcid":"https://orcid.org/0000-0002-6181-496X"},"institutions":[{"id":"https://openalex.org/I158842170","display_name":"Chongqing University","ror":"https://ror.org/023rhb549","country_code":"CN","type":"education","lineage":["https://openalex.org/I158842170"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yonghua Quan","raw_affiliation_strings":["School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0002-6181-496X","affiliations":[{"raw_affiliation_string":"School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China","institution_ids":["https://openalex.org/I158842170"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033740734","display_name":"Zhong Tian","orcid":"https://orcid.org/0000-0003-3176-7290"},"institutions":[{"id":"https://openalex.org/I158842170","display_name":"Chongqing University","ror":"https://ror.org/023rhb549","country_code":"CN","type":"education","lineage":["https://openalex.org/I158842170"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhong Tian","raw_affiliation_strings":["School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0003-3176-7290","affiliations":[{"raw_affiliation_string":"School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China","institution_ids":["https://openalex.org/I158842170"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040907578","display_name":"Zhengchuan Chen","orcid":"https://orcid.org/0000-0002-2289-5621"},"institutions":[{"id":"https://openalex.org/I158842170","display_name":"Chongqing University","ror":"https://ror.org/023rhb549","country_code":"CN","type":"education","lineage":["https://openalex.org/I158842170"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhengchuan Chen","raw_affiliation_strings":["School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0002-2289-5621","affiliations":[{"raw_affiliation_string":"School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China","institution_ids":["https://openalex.org/I158842170"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100340868","display_name":"Min Wang","orcid":"https://orcid.org/0000-0001-7838-8947"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Min Wang","raw_affiliation_strings":["School of Optoelectronics Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0001-7838-8947","affiliations":[{"raw_affiliation_string":"School of Optoelectronics Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5001469325","display_name":"Dapeng Wu","orcid":"https://orcid.org/0000-0003-1755-0183"},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Dapeng Oliver Wu","raw_affiliation_strings":["Department of Computer Science, The City University of Hong Kong, Hong Kong SAR, China","Department of Computer Science, The City University of HongKong, China"],"raw_orcid":"https://orcid.org/0000-0003-1755-0183","affiliations":[{"raw_affiliation_string":"Department of Computer Science, The City University of Hong Kong, Hong Kong SAR, China","institution_ids":["https://openalex.org/I168719708"]},{"raw_affiliation_string":"Department of Computer Science, The City University of HongKong, China","institution_ids":["https://openalex.org/I168719708"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5093812050"],"corresponding_institution_ids":["https://openalex.org/I158842170"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.22888253,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"75","issue":"2","first_page":"2558","last_page":"2572"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9919000267982483,"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":0.9919000267982483,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9878000020980835,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9747999906539917,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.6470312476158142},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.6085004806518555},{"id":"https://openalex.org/keywords/broadband","display_name":"Broadband","score":0.6022123694419861},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5789896845817566},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.49478262662887573},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.36100608110427856},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.29766392707824707},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.13719558715820312},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.11173641681671143}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.6470312476158142},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.6085004806518555},{"id":"https://openalex.org/C509933004","wikidata":"https://www.wikidata.org/wiki/Q194163","display_name":"Broadband","level":2,"score":0.6022123694419861},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5789896845817566},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.49478262662887573},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.36100608110427856},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.29766392707824707},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.13719558715820312},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.11173641681671143}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tvt.2025.3600955","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2025.3600955","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1413043373","display_name":null,"funder_award_id":"62271092","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3721685819","display_name":null,"funder_award_id":"CSTB2023NSCQ-MSX0933","funder_id":"https://openalex.org/F4320323172","funder_display_name":"Natural Science Foundation of Chongqing"},{"id":"https://openalex.org/G5310363271","display_name":null,"funder_award_id":"CSTB2022NSCQ-MSX0327","funder_id":"https://openalex.org/F4320323172","funder_display_name":"Natural Science Foundation of Chongqing"},{"id":"https://openalex.org/G6625180453","display_name":null,"funder_award_id":"CSTB2025NSCQ-GPX1286","funder_id":"https://openalex.org/F4320323172","funder_display_name":"Natural Science Foundation of Chongqing"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320323172","display_name":"Natural Science Foundation of Chongqing","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":44,"referenced_works":["https://openalex.org/W151604921","https://openalex.org/W575399286","https://openalex.org/W1969648546","https://openalex.org/W1970830346","https://openalex.org/W1996215314","https://openalex.org/W1997834106","https://openalex.org/W2141461755","https://openalex.org/W2222512263","https://openalex.org/W2236623899","https://openalex.org/W2620901189","https://openalex.org/W2645161951","https://openalex.org/W2950077417","https://openalex.org/W2965824823","https://openalex.org/W2969424089","https://openalex.org/W2971912794","https://openalex.org/W3002205212","https://openalex.org/W3005072086","https://openalex.org/W3005476696","https://openalex.org/W3010176898","https://openalex.org/W3011747750","https://openalex.org/W3017150380","https://openalex.org/W3034281970","https://openalex.org/W3035049807","https://openalex.org/W3035386068","https://openalex.org/W3039402952","https://openalex.org/W3091752016","https://openalex.org/W3129486236","https://openalex.org/W3134746776","https://openalex.org/W3137570378","https://openalex.org/W3146827687","https://openalex.org/W3194620979","https://openalex.org/W3197488186","https://openalex.org/W3198743033","https://openalex.org/W3211967628","https://openalex.org/W4206296593","https://openalex.org/W4225737845","https://openalex.org/W4226492225","https://openalex.org/W4285047779","https://openalex.org/W4286656242","https://openalex.org/W4313001863","https://openalex.org/W4376456481","https://openalex.org/W4387010781","https://openalex.org/W4391936115","https://openalex.org/W4403421240"],"related_works":["https://openalex.org/W2792339401","https://openalex.org/W2530747331","https://openalex.org/W3097525855","https://openalex.org/W2125564215","https://openalex.org/W4391741972","https://openalex.org/W1986382998","https://openalex.org/W2517776947","https://openalex.org/W2084482193","https://openalex.org/W2972611783","https://openalex.org/W2063393180"],"abstract_inverted_index":{"Being":[0],"capable":[1],"of":[2,31,98,113,123,147,183,207,223],"realizing":[3],"smart":[4],"and":[5,22,118,205],"controllable":[6],"channel":[7,129],"environments,":[8],"the":[9,20,27,35,80,99,109,114,119,148,184,189,196,203,208,217,220,224],"reconfigurable":[10],"intelligent":[11],"surface":[12],"(RIS)":[13],"shows":[14],"great":[15],"potential":[16],"to":[17,26,62,136,177],"improve":[18],"both":[19],"spectral":[21],"energy":[23],"efficiencies.":[24],"Due":[25],"multiplicative":[28],"fading":[29],"effect":[30],"reflective":[32],"RIS":[33,41,60],"links,":[34],"capacity":[36],"gain":[37],"induced":[38],"by":[39,215],"passive":[40],"(PRIS)":[42],"is":[43,89,125,134,150,157,175,212],"limited":[44],"in":[45,195],"communication":[46,69],"scenarios":[47],"with":[48,71,171],"blocked":[49],"or":[50],"very":[51],"weak":[52],"direct":[53],"links.":[54],"This":[55],"work":[56],"introduces":[57],"an":[58],"active":[59],"(ARIS)":[61],"a":[63,84,93,105,128,139,172,179],"multiuser":[64],"multi-input":[65],"multi-output":[66],"(MIMO)":[67],"broadband":[68,95,198],"system":[70,225],"orthogonal":[72],"frequency":[73],"division":[74],"multiplexing":[75],"(OFDM),":[76],"aiming":[77],"at":[78],"enhancing":[79],"transmission":[81],"rate.":[82],"Specifically,":[83,127],"sum":[85,221],"rate":[86,222],"optimization":[87],"problem":[88],"formulated":[90],"based":[91],"on":[92],"practical":[94,197],"reflection":[96],"model":[97],"ARIS.":[100],"An":[101],"algorithm":[102,133],"for":[103,159],"addressing":[104],"suboptimal":[106,120,140,180],"subcarrier":[107,141],"allocation,":[108],"optimal":[110,144],"precoding":[111,145],"matrix":[112,146],"base":[115],"station":[116],"(BS),":[117],"reflecting":[121,181],"coefficients":[122,182],"ARIS":[124],"proposed.":[126],"attenuation":[130],"coefficient-based":[131],"Hungarian":[132],"used":[135,176],"fastly":[137],"address":[138],"allocation.":[142],"The":[143,163],"BS":[149],"presented":[151],"explicitly,":[152],"where":[153],"water-filling":[154],"form":[155],"solution":[156],"given":[158],"two":[160],"special":[161],"cases.":[162],"weighted":[164],"minimum":[165],"mean":[166],"square":[167],"error":[168],"method":[169,174],"associated":[170],"penalty":[173],"find":[178],"ARIS,":[185],"which":[186],"well":[187],"handle":[188],"coefficient":[190],"coupling":[191],"across":[192],"subcarriers":[193],"inherent":[194],"RIS.":[199],"Numerical":[200],"results":[201],"validate":[202],"convergence":[204],"effectiveness":[206],"proposed":[209,218],"algorithm.":[210],"It":[211],"shown":[213],"that":[214],"using":[216],"algorithm,":[219],"can":[226],"be":[227],"enhanced":[228],"significantly.":[229]},"counts_by_year":[],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}