{"id":"https://openalex.org/W4402187329","doi":"https://doi.org/10.1109/tcomm.2024.3454013","title":"Joint Discrete Precoding and RIS Optimization for RIS-Assisted MU-MIMO Communication Systems","display_name":"Joint Discrete Precoding and RIS Optimization for RIS-Assisted MU-MIMO Communication Systems","publication_year":2024,"publication_date":"2024-09-03","ids":{"openalex":"https://openalex.org/W4402187329","doi":"https://doi.org/10.1109/tcomm.2024.3454013"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2024.3454013","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tcomm.2024.3454013","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1109/tcomm.2024.3454013","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5053814548","display_name":"Parisa Ramezani","orcid":"https://orcid.org/0000-0002-8822-6412"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Parisa Ramezani","raw_affiliation_strings":["KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-8822-6412","affiliations":[{"raw_affiliation_string":"KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063052685","display_name":"Yasaman Khorsandmanesh","orcid":null},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Yasaman Khorsandmanesh","raw_affiliation_strings":["KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0003-3560-2901","affiliations":[{"raw_affiliation_string":"KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062293532","display_name":"Emil Bj\u00f6rnson","orcid":"https://orcid.org/0000-0002-5954-434X"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Emil Bj\u00f6rnson","raw_affiliation_strings":["KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-5954-434X","affiliations":[{"raw_affiliation_string":"KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I86987016"],"apc_list":null,"apc_paid":{"value":1381,"currency":"EUR","value_usd":1489},"fwci":1.4036,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.80550821,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"73","issue":"3","first_page":"1531","last_page":"1546"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9987999796867371,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9987999796867371,"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":0.9937000274658203,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9911999702453613,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.8655591011047363},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.6908302307128906},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.587565541267395},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5186421275138855},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5146166086196899},{"id":"https://openalex.org/keywords/communications-system","display_name":"Communications system","score":0.42256608605384827},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.31735581159591675},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2857789993286133},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.1416788399219513}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.8655591011047363},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.6908302307128906},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.587565541267395},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5186421275138855},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5146166086196899},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.42256608605384827},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.31735581159591675},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2857789993286133},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.1416788399219513},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2024.3454013","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tcomm.2024.3454013","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1109/tcomm.2024.3454013","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tcomm.2024.3454013","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6771436268","display_name":"Intelligenta tr\u00e5dl\u00f6sa n\u00e4tverk med innovativ antenntopologi","funder_award_id":"FFL18-0277","funder_id":"https://openalex.org/F4320320940","funder_display_name":"Stiftelsen f\u00f6r\u00a0Strategisk Forskning"}],"funders":[{"id":"https://openalex.org/F4320320940","display_name":"Stiftelsen f\u00f6r\u00a0Strategisk Forskning","ror":"https://ror.org/044wr7g58"},{"id":"https://openalex.org/F4320322327","display_name":"Knut och Alice Wallenbergs Stiftelse","ror":"https://ror.org/004hzzk67"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":50,"referenced_works":["https://openalex.org/W1526933574","https://openalex.org/W1970830346","https://openalex.org/W2020644915","https://openalex.org/W2097090380","https://openalex.org/W2105147296","https://openalex.org/W2116631972","https://openalex.org/W2119991635","https://openalex.org/W2120796660","https://openalex.org/W2127152877","https://openalex.org/W2127309169","https://openalex.org/W2139485977","https://openalex.org/W2140940105","https://openalex.org/W2142238976","https://openalex.org/W2148907454","https://openalex.org/W2148978817","https://openalex.org/W2156787051","https://openalex.org/W2158496620","https://openalex.org/W2159907952","https://openalex.org/W2533046718","https://openalex.org/W2670485350","https://openalex.org/W2938548345","https://openalex.org/W2948573205","https://openalex.org/W2963511957","https://openalex.org/W2964084137","https://openalex.org/W2969424089","https://openalex.org/W2981792785","https://openalex.org/W2984937369","https://openalex.org/W2995554704","https://openalex.org/W3005476696","https://openalex.org/W3010176898","https://openalex.org/W3015419519","https://openalex.org/W3021225717","https://openalex.org/W3034533409","https://openalex.org/W3043220753","https://openalex.org/W3096023787","https://openalex.org/W3102338891","https://openalex.org/W3127395311","https://openalex.org/W3129486236","https://openalex.org/W3193181629","https://openalex.org/W3193247573","https://openalex.org/W3202943682","https://openalex.org/W4226093226","https://openalex.org/W4288769208","https://openalex.org/W4312823246","https://openalex.org/W4313482669","https://openalex.org/W4323022385","https://openalex.org/W4387883671","https://openalex.org/W4391382301","https://openalex.org/W4392543713","https://openalex.org/W6787989752"],"related_works":["https://openalex.org/W4281688526","https://openalex.org/W2152088989","https://openalex.org/W2756419127","https://openalex.org/W4366493479","https://openalex.org/W2905893439","https://openalex.org/W3135374966","https://openalex.org/W2554517556","https://openalex.org/W2489379490","https://openalex.org/W2141031289","https://openalex.org/W4387686915"],"abstract_inverted_index":{"This":[0],"paper":[1],"considers":[2],"a":[3,14,26,64,190],"multi-user":[4],"multiple-input":[5],"multiple-output":[6],"(MU-MIMO)":[7],"system":[8],"where":[9,216],"the":[10,33,39,43,57,74,100,117,127,137,157,172,180,208,221,228],"downlink":[11],"communication":[12],"between":[13],"base":[15],"station":[16],"(BS)":[17],"and":[18,47,84,151,189],"multiple":[19],"user":[20],"equipments":[21],"(UEs)":[22],"is":[23,94,113,211,218],"aided":[24],"by":[25,166],"reconfigurable":[27],"intelligent":[28],"surface":[29],"(RIS).":[30],"We":[31,155],"study":[32],"sum":[34,144],"rate":[35],"maximization":[36],"problem":[37,139,150],"with":[38,79,86],"objective":[40],"of":[41,56,67,110,207],"finding":[42],"optimal":[44,118,158,186],"precoding":[45,58,159],"vectors":[46,59,160],"RIS":[48,75,174,198],"configuration.":[49],"Due":[50],"to":[51,99,115,120,227],"fronthaul":[52],"limitation,":[53],"each":[54],"entry":[55],"must":[60],"be":[61],"picked":[62],"from":[63],"finite":[65],"set":[66],"quantization":[68],"labels.":[69],"Furthermore,":[70],"two":[71,176],"scenarios":[72],"for":[73,108],"are":[76,183,224],"investigated,":[77],"one":[78],"continuous":[80],"infinite-resolution":[81],"reflection":[82,89],"coefficients":[83],"another":[85],"discrete":[87,111,123,173],"finite-resolution":[88],"coefficients.":[90],"A":[91],"novel":[92],"framework":[93],"developed":[95],"which,":[96],"in":[97,203],"contrast":[98],"common":[101],"literature":[102],"that":[103,194,220],"only":[104],"offers":[105],"sub-optimal":[106],"solutions":[107,177],"optimization":[109],"variables,":[112],"able":[114],"find":[116],"solution":[119],"problems":[121],"involving":[122],"constraints.":[124],"Based":[125],"on":[126,179],"classical":[128],"weighted":[129,143],"minimum":[130],"mean":[131,145],"square":[132,146],"error":[133,147],"(WMMSE),":[134],"we":[135],"transform":[136],"original":[138],"into":[140],"an":[141,162],"equivalent":[142],"(MSE)":[148],"minimization":[149],"solve":[152],"it":[153,217],"iteratively.":[154],"compute":[156],"via":[161,213],"efficient":[163],"algorithm":[164,182,188],"inspired":[165],"sphere":[167],"decoding":[168],"(SD).":[169],"For":[170],"optimizing":[171],"configuration,":[175],"based":[178],"SD":[181],"developed:":[184],"An":[185],"SD-based":[187],"low-complexity":[191],"heuristic":[192],"method":[193],"can":[195],"efficiently":[196],"obtain":[197],"configuration":[199],"without":[200],"much":[201],"loss":[202],"optimality.":[204],"The":[205],"effectiveness":[206],"presented":[209],"algorithms":[210],"corroborated":[212],"numerical":[214],"simulations":[215],"shown":[219],"proposed":[222],"designs":[223],"remarkably":[225],"superior":[226],"commonly":[229],"used":[230],"benchmarks.":[231]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":8},{"year":2024,"cited_by_count":1}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}