{"id":"https://openalex.org/W4416368658","doi":"https://doi.org/10.1109/tgcn.2025.3634827","title":"RCANet-Based User Partitioning Channel Estimation for RIS-Assisted mmWave MIMO Systems","display_name":"RCANet-Based User Partitioning Channel Estimation for RIS-Assisted mmWave MIMO Systems","publication_year":2025,"publication_date":"2025-11-19","ids":{"openalex":"https://openalex.org/W4416368658","doi":"https://doi.org/10.1109/tgcn.2025.3634827"},"language":null,"primary_location":{"id":"doi:10.1109/tgcn.2025.3634827","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgcn.2025.3634827","pdf_url":null,"source":{"id":"https://openalex.org/S4210192662","display_name":"IEEE Transactions on Green Communications and Networking","issn_l":"2473-2400","issn":["2473-2400"],"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 Green Communications and Networking","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/A5007498086","display_name":"Jinhao Wang","orcid":"https://orcid.org/0009-0006-8587-9393"},"institutions":[{"id":"https://openalex.org/I4210158823","display_name":"Weihai Science and Technology Bureau","ror":"https://ror.org/05mx4xx46","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210158823"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinhao Wang","raw_affiliation_strings":["School of Airspace Science and Engineering, Shandong University, Weihai, China"],"raw_orcid":"https://orcid.org/0009-0006-8587-9393","affiliations":[{"raw_affiliation_string":"School of Airspace Science and Engineering, Shandong University, Weihai, China","institution_ids":["https://openalex.org/I4210158823"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036693904","display_name":"Xiao Zhou","orcid":"https://orcid.org/0000-0002-1331-7379"},"institutions":[{"id":"https://openalex.org/I4210158823","display_name":"Weihai Science and Technology Bureau","ror":"https://ror.org/05mx4xx46","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210158823"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiao Zhou","raw_affiliation_strings":["School of Airspace Science and Engineering, Shandong University, Weihai, China"],"raw_orcid":"https://orcid.org/0000-0002-1331-7379","affiliations":[{"raw_affiliation_string":"School of Airspace Science and Engineering, Shandong University, Weihai, China","institution_ids":["https://openalex.org/I4210158823"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015144801","display_name":"Chengyou Wang","orcid":"https://orcid.org/0000-0002-0901-2492"},"institutions":[{"id":"https://openalex.org/I4210158823","display_name":"Weihai Science and Technology Bureau","ror":"https://ror.org/05mx4xx46","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210158823"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chengyou Wang","raw_affiliation_strings":["School of Airspace Science and Engineering, Shandong University, Weihai, China"],"raw_orcid":"https://orcid.org/0000-0002-0901-2492","affiliations":[{"raw_affiliation_string":"School of Airspace Science and Engineering, Shandong University, Weihai, China","institution_ids":["https://openalex.org/I4210158823"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5083419277","display_name":"Zhiquan Bai","orcid":"https://orcid.org/0000-0002-8716-3691"},"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":"Zhiquan Bai","raw_affiliation_strings":["Shandong Key Laboratory of Intelligent Communication and Sensing-Computing Integration, Shandong University, Jinan, China"],"raw_orcid":"https://orcid.org/0000-0002-8716-3691","affiliations":[{"raw_affiliation_string":"Shandong Key Laboratory of Intelligent Communication and Sensing-Computing Integration, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I154099455"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.18551001,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"10","issue":null,"first_page":"1419","last_page":"1432"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9535999894142151,"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":0.9535999894142151,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.03759999945759773,"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":0.00139999995008111,"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/channel","display_name":"Channel (broadcasting)","score":0.7892000079154968},{"id":"https://openalex.org/keywords/partition","display_name":"Partition (number theory)","score":0.5667999982833862},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5293999910354614},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.5120999813079834},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.49939998984336853},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.4747999906539917},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.38530001044273376}],"concepts":[{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.7892000079154968},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.741100013256073},{"id":"https://openalex.org/C42812","wikidata":"https://www.wikidata.org/wiki/Q1082910","display_name":"Partition (number theory)","level":2,"score":0.5667999982833862},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5293999910354614},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.5120999813079834},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.49939998984336853},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4747999906539917},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.44040000438690186},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.38530001044273376},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.35409998893737793},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3393000066280365},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.30979999899864197},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.3077000081539154},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.29100000858306885},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.28929999470710754},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.28380000591278076},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.250900000333786}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgcn.2025.3634827","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgcn.2025.3634827","pdf_url":null,"source":{"id":"https://openalex.org/S4210192662","display_name":"IEEE Transactions on Green Communications and Networking","issn_l":"2473-2400","issn":["2473-2400"],"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 Green Communications and Networking","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2906377974","display_name":null,"funder_award_id":"61702303","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4783678198","display_name":null,"funder_award_id":"ZR2021LZH003","funder_id":"https://openalex.org/F4320336925","funder_display_name":"Shandong Provincial Postdoctoral Science Foundation"},{"id":"https://openalex.org/G6154322319","display_name":null,"funder_award_id":"ZR2022MF256","funder_id":"https://openalex.org/F4320336925","funder_display_name":"Shandong Provincial Postdoctoral Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320336925","display_name":"Shandong Provincial Postdoctoral Science Foundation","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W2476548250","https://openalex.org/W2503339013","https://openalex.org/W2734408173","https://openalex.org/W2937693915","https://openalex.org/W2981609437","https://openalex.org/W2985466239","https://openalex.org/W3008356568","https://openalex.org/W3010176898","https://openalex.org/W3010695123","https://openalex.org/W3036886449","https://openalex.org/W3043220753","https://openalex.org/W3099604179","https://openalex.org/W3110989801","https://openalex.org/W3129486236","https://openalex.org/W3144404977","https://openalex.org/W3154003282","https://openalex.org/W3161208217","https://openalex.org/W3161522428","https://openalex.org/W3177052299","https://openalex.org/W3189202224","https://openalex.org/W3196690531","https://openalex.org/W3198091448","https://openalex.org/W3204184545","https://openalex.org/W4226227715","https://openalex.org/W4285307882","https://openalex.org/W4306174033","https://openalex.org/W4312610058","https://openalex.org/W4312975881","https://openalex.org/W4315473058","https://openalex.org/W4321770460","https://openalex.org/W4364323028","https://openalex.org/W4377971500","https://openalex.org/W4379620490","https://openalex.org/W4382371089","https://openalex.org/W4385805207","https://openalex.org/W4386261892","https://openalex.org/W4386523619","https://openalex.org/W4387831787","https://openalex.org/W4388505414","https://openalex.org/W4389232847","https://openalex.org/W4394811136","https://openalex.org/W4394897053","https://openalex.org/W4394967008","https://openalex.org/W4399376062","https://openalex.org/W4399526740","https://openalex.org/W4399619746","https://openalex.org/W4400276449"],"related_works":[],"abstract_inverted_index":{"Reconfigurable":[0],"intelligent":[1],"surface":[2],"(RIS)":[3],"can":[4],"effectively":[5],"overcome":[6],"the":[7,38,42,103,107,125,130,138,148,154,164],"limited":[8],"coverage":[9],"of":[10,17,44,127],"millimeter":[11],"wave":[12],"(mmWave).":[13],"The":[14,88],"effective":[15],"operation":[16],"RIS":[18,116],"relies":[19],"on":[20,81],"accurate":[21,31,99],"channel":[22,28,32,53,77,105,149,182],"state":[23],"information":[24],"(CSI)":[25],"obtained":[26,114],"from":[27],"estimation.":[29],"However,":[30,59],"estimation":[33,54,65,78,100,183],"is":[34,113,132],"challenging":[35],"due":[36],"to":[37,94,134,180],"passive":[39],"nature":[40],"and":[41,63,83,101,119],"presence":[43],"high":[45,60],"pilot":[46],"overhead.":[47],"Recently,":[48],"deep":[49],"learning":[50],"(DL)":[51],"based":[52,80],"methods":[55],"have":[56],"shown":[57],"potential.":[58],"model":[61],"complexity":[62,152,178],"low":[64,151],"accuracy":[66],"are":[67],"still":[68],"key":[69],"issues.":[70],"This":[71],"paper":[72],"proposes":[73],"a":[74],"user":[75,92],"partitioning":[76,93],"method":[79,90,166],"reparameterization":[82],"coordinate":[84],"attention":[85],"network":[86,145],"(RCANet).":[87],"proposed":[89,165],"uses":[91],"achieve":[95],"angle":[96],"segmentation":[97],"for":[98],"obtains":[102],"estimated":[104],"by":[106,115],"trained":[108],"RCANet.":[109],"Initially,":[110],"partial":[111],"CSI":[112],"elements":[117],"grouping":[118],"least":[120],"square":[121,171],"(LS)":[122],"algorithms.":[123,184],"Subsequently,":[124],"data":[126],"users":[128],"in":[129,137,153],"partition":[131],"utilized":[133],"train":[135],"RCANet":[136],"offline":[139],"training":[140],"part.":[141,157],"Finally,":[142],"using":[143],"well-trained":[144],"allows":[146],"estimating":[147],"with":[150],"online":[155],"test":[156],"Our":[158],"comprehensive":[159],"simulation":[160],"results":[161],"show":[162],"that":[163],"has":[167],"lower":[168,177],"normalized":[169],"mean":[170],"error":[172],"(NMSE)":[173],"as":[174,176],"well":[175],"compared":[179],"other":[181]},"counts_by_year":[],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-11-19T00:00:00"}