{"id":"https://openalex.org/W4391130045","doi":"https://doi.org/10.1109/ictc58733.2023.10393177","title":"Active and passive beamforming based on RWMMSE and Gradient Projection for IRS-aided MU-MISO Systems","display_name":"Active and passive beamforming based on RWMMSE and Gradient Projection for IRS-aided MU-MISO Systems","publication_year":2023,"publication_date":"2023-10-11","ids":{"openalex":"https://openalex.org/W4391130045","doi":"https://doi.org/10.1109/ictc58733.2023.10393177"},"language":"en","primary_location":{"id":"doi:10.1109/ictc58733.2023.10393177","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1109/ictc58733.2023.10393177","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 14th International Conference on Information and Communication Technology Convergence (ICTC)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5087928730","display_name":"Seraphin Kimaryo","orcid":"https://orcid.org/0000-0002-8826-1904"},"institutions":[{"id":"https://openalex.org/I118373667","display_name":"Seoul National University of Science and Technology","ror":"https://ror.org/00chfja07","country_code":"KR","type":"education","lineage":["https://openalex.org/I118373667"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seraphin Kimaryo","raw_affiliation_strings":["Seoul National University of Science and Technology,Department of Electrical and Information Engineering,Seoul,Republic of Korea","Department of Electrical and Information Engineering, Seoul National University of Science and Technology, Seoul, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Seoul National University of Science and Technology,Department of Electrical and Information Engineering,Seoul,Republic of Korea","institution_ids":["https://openalex.org/I118373667"]},{"raw_affiliation_string":"Department of Electrical and Information Engineering, Seoul National University of Science and Technology, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I118373667"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034881119","display_name":"Eduard E. Bahingayi","orcid":"https://orcid.org/0000-0001-5097-2498"},"institutions":[{"id":"https://openalex.org/I154840374","display_name":"Muhimbili University of Health and Allied Sciences","ror":"https://ror.org/027pr6c67","country_code":"TZ","type":"education","lineage":["https://openalex.org/I154840374"]}],"countries":["TZ"],"is_corresponding":false,"raw_author_name":"Eduard E. Bahingayi","raw_affiliation_strings":["Muhimbili University of Health and Allied Sciences,Biomedical Engineering Unit,Dar es Salaam,Tanzania","Biomedical Engineering Unit, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Muhimbili University of Health and Allied Sciences,Biomedical Engineering Unit,Dar es Salaam,Tanzania","institution_ids":["https://openalex.org/I154840374"]},{"raw_affiliation_string":"Biomedical Engineering Unit, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania","institution_ids":["https://openalex.org/I154840374"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5063848301","display_name":"Kyungchun Lee","orcid":"https://orcid.org/0000-0002-4070-549X"},"institutions":[{"id":"https://openalex.org/I118373667","display_name":"Seoul National University of Science and Technology","ror":"https://ror.org/00chfja07","country_code":"KR","type":"education","lineage":["https://openalex.org/I118373667"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Kyungchun Lee","raw_affiliation_strings":["Seoul National University of Science and Technology,Department of Electrical and Information Engineering and the Research Center for Electrical and Information Technology,Seoul,Republic of Korea","Department of Electrical and Information Engineering and the Research Center for Electrical and Information Technology, Seoul National University of Science and Technology, Seoul, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Seoul National University of Science and Technology,Department of Electrical and Information Engineering and the Research Center for Electrical and Information Technology,Seoul,Republic of Korea","institution_ids":["https://openalex.org/I118373667"]},{"raw_affiliation_string":"Department of Electrical and Information Engineering and the Research Center for Electrical and Information Technology, Seoul National University of Science and Technology, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I118373667"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.5409,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.62859522,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"717","last_page":"722"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":1.0,"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":1.0,"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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.9847999811172485,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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":0.9829000234603882,"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/telecommunications-link","display_name":"Telecommunications link","score":0.6745024919509888},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6579439640045166},{"id":"https://openalex.org/keywords/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.6548539996147156},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6547974944114685},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.6094903349876404},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5915285348892212},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.575188159942627},{"id":"https://openalex.org/keywords/control-reconfiguration","display_name":"Control reconfiguration","score":0.5283751487731934},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5136594176292419},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.5022299289703369},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.48409903049468994},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4722040593624115},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.4290613830089569},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.4282686710357666},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3793754577636719},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.33087247610092163},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2211819291114807},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.14947035908699036}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6745024919509888},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6579439640045166},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.6548539996147156},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6547974944114685},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.6094903349876404},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5915285348892212},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.575188159942627},{"id":"https://openalex.org/C119701452","wikidata":"https://www.wikidata.org/wiki/Q5165881","display_name":"Control reconfiguration","level":2,"score":0.5283751487731934},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5136594176292419},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.5022299289703369},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.48409903049468994},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4722040593624115},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.4290613830089569},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4282686710357666},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3793754577636719},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.33087247610092163},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2211819291114807},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.14947035908699036},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","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},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.0},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ictc58733.2023.10393177","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1109/ictc58733.2023.10393177","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 14th International Conference on Information and Communication Technology Convergence (ICTC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.6000000238418579}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W595252221","https://openalex.org/W1518945650","https://openalex.org/W1970830346","https://openalex.org/W1997834106","https://openalex.org/W2076605490","https://openalex.org/W2226740399","https://openalex.org/W2770606349","https://openalex.org/W2897957442","https://openalex.org/W2945534522","https://openalex.org/W2968389137","https://openalex.org/W2968810373","https://openalex.org/W2974107276","https://openalex.org/W2975820893","https://openalex.org/W3005476696","https://openalex.org/W3114380492","https://openalex.org/W3120822682","https://openalex.org/W3129486236","https://openalex.org/W3158832185","https://openalex.org/W3213732066","https://openalex.org/W4205751049","https://openalex.org/W4231661622","https://openalex.org/W4313157183","https://openalex.org/W4322576544"],"related_works":["https://openalex.org/W1981002473","https://openalex.org/W2357657342","https://openalex.org/W2548963335","https://openalex.org/W2153432761","https://openalex.org/W2159941915","https://openalex.org/W2152623100","https://openalex.org/W4200589288","https://openalex.org/W2103590590","https://openalex.org/W2158165366","https://openalex.org/W3195147989"],"abstract_inverted_index":{"The":[0],"intelligent":[1],"reflecting":[2,13],"surface":[3],"(IRS),":[4],"a":[5,22,92,99,129,177],"planar":[6],"array":[7],"consisting":[8],"of":[9,25,41,114,136,153,164],"many":[10,16],"low-cost":[11],"configurable":[12],"elements,":[14,43],"offers":[15],"new":[17],"possibilities,":[18],"such":[19],"as":[20,51,53],"creating":[21],"virtual":[23],"line":[24],"sight,":[26],"interference":[27],"cancellation,":[28],"wireless":[29],"power":[30],"transfer,":[31],"etc.":[32],"To":[33],"efficiently":[34],"achieve":[35],"these":[36],"goals,":[37],"the":[38,115,125,138,145,157,162,173],"real-time":[39],"reconfiguration":[40],"its":[42],"which":[44,65,108],"is":[45,109,141,149],"still":[46],"challenging,":[47],"needs":[48],"to":[49,68,123,143,172],"be":[50],"simple":[52],"possible.":[54],"Prior":[55],"works":[56],"for":[57,151],"downlink":[58],"IRS-aided":[59],"multi-user":[60],"multiple-input":[61],"single-output":[62],"(MISO)":[63],"systems,":[64],"are":[66,72],"noted":[67],"have":[69],"high":[70],"complexity,":[71],"extended":[73],"in":[74,168],"this":[75],"work":[76],"by":[77],"incorporating":[78],"them":[79],"with":[80,176],"novel":[81],"techniques":[82],"that":[83],"lower":[84],"their":[85],"complexity.":[86],"In":[87],"doing":[88],"so,":[89],"we":[90],"create":[91],"weighted":[93,101,116],"sum":[94],"rate":[95],"problem":[96],"and":[97],"adopt":[98],"reduced":[100],"minimum":[102,117],"mean":[103,118],"square":[104,119],"error":[105,120],"(RWMMSE)":[106],"algorithm,":[107,133],"an":[110],"advanced":[111],"low-complexity":[112],"version":[113],"(WMMSE)":[121],"scheme":[122,167],"optimize":[124],"active":[126],"precoders,":[127],"whereas":[128],"gradient":[130],"projection":[131],"(GP)":[132],"whose":[134],"procedure":[135],"choosing":[137],"step":[139],"size":[140],"redesigned":[142],"avoid":[144],"high-complexity":[146],"iterative":[147],"processes,":[148],"adopted":[150],"optimization":[152],"passive":[154],"beamformers.":[155],"Finally,":[156],"presented":[158],"numerical":[159],"results":[160],"demonstrate":[161],"effectiveness":[163],"our":[165],"proposed":[166],"attaining":[169],"comparable":[170],"performance":[171],"benchmark":[174],"schemes":[175],"significant":[178],"complexity":[179],"reduction.":[180]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}