{"id":"https://openalex.org/W6959752672","doi":"https://doi.org/10.1109/access.2025.3555296","title":"Hybrid Beamforming Design on Riemannian Manifolds for Wideband MIMO Systems","display_name":"Hybrid Beamforming Design on Riemannian Manifolds for Wideband MIMO Systems","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W6959752672","doi":"https://doi.org/10.1109/access.2025.3555296"},"language":"en","primary_location":{"id":"doi:10.1109/access.2025.3555296","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3555296","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2025.3555296","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Hyunwoo Nam","orcid":"https://orcid.org/0000-0002-9852-8449"},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyunwoo Nam","raw_affiliation_strings":["Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0002-9852-8449","affiliations":[{"raw_affiliation_string":"Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Girim Kwon","orcid":"https://orcid.org/0000-0003-2692-8600"},"institutions":[{"id":"https://openalex.org/I124633538","display_name":"University of Seoul","ror":"https://ror.org/05en5nh73","country_code":"KR","type":"education","lineage":["https://openalex.org/I124633538"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Girim Kwon","raw_affiliation_strings":["School of Electrical and Computer Engineering, University of Seoul, Seoul, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0003-2692-8600","affiliations":[{"raw_affiliation_string":"School of Electrical and Computer Engineering, University of Seoul, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I124633538"]}]},{"author_position":"last","author":{"id":null,"display_name":"Hyuncheol Park","orcid":"https://orcid.org/0000-0002-7346-1364"},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyuncheol Park","raw_affiliation_strings":["Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0002-7346-1364","affiliations":[{"raw_affiliation_string":"Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":4.3324,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.94702472,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"13","issue":null,"first_page":"56958","last_page":"56981"},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T13419","display_name":"Ego Development and Educational Practices","score":0.1387999951839447,"subfield":{"id":"https://openalex.org/subfields/3203","display_name":"Clinical Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T13419","display_name":"Ego Development and Educational Practices","score":0.1387999951839447,"subfield":{"id":"https://openalex.org/subfields/3203","display_name":"Clinical Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13154","display_name":"Legal and Regulatory Analysis","score":0.12870000302791595,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T14019","display_name":"Socioeconomic and Demographic Analysis","score":0.05050000175833702,"subfield":{"id":"https://openalex.org/subfields/2308","display_name":"Management, Monitoring, Policy and Law"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/wideband","display_name":"Wideband","score":0.7639999985694885},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6599000096321106},{"id":"https://openalex.org/keywords/baseband","display_name":"Baseband","score":0.6556000113487244},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.5317000150680542},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.421999990940094},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.399399995803833},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.38690000772476196},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.38510000705718994}],"concepts":[{"id":"https://openalex.org/C2780202535","wikidata":"https://www.wikidata.org/wiki/Q4524457","display_name":"Wideband","level":2,"score":0.7639999985694885},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6599000096321106},{"id":"https://openalex.org/C65165936","wikidata":"https://www.wikidata.org/wiki/Q575784","display_name":"Baseband","level":3,"score":0.6556000113487244},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5978999733924866},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.5317000150680542},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.421999990940094},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.41359999775886536},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.399399995803833},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.38690000772476196},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.38510000705718994},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.35659998655319214},{"id":"https://openalex.org/C529865628","wikidata":"https://www.wikidata.org/wiki/Q1790740","display_name":"Manifold (fluid mechanics)","level":2,"score":0.3147999942302704},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3109000027179718},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3041999936103821},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.30300000309944153},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.2985000014305115},{"id":"https://openalex.org/C2779593128","wikidata":"https://www.wikidata.org/wiki/Q632814","display_name":"Riemannian manifold","level":2,"score":0.28780001401901245},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.2842999994754791},{"id":"https://openalex.org/C86155754","wikidata":"https://www.wikidata.org/wiki/Q13636979","display_name":"Hybrid power","level":3,"score":0.2671999931335449},{"id":"https://openalex.org/C48262172","wikidata":"https://www.wikidata.org/wiki/Q16908765","display_name":"Design process","level":3,"score":0.2515999972820282},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.2502000033855438}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2025.3555296","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3555296","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:41c9e463341243639dd0b6a33bb5ffa7","is_oa":true,"landing_page_url":"https://doaj.org/article/41c9e463341243639dd0b6a33bb5ffa7","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 13, Pp 56958-56981 (2025)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2025.3555296","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3555296","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8753454685211182}],"awards":[{"id":"https://openalex.org/G1864491050","display_name":null,"funder_award_id":"2023-RS-2023-00259991","funder_id":"https://openalex.org/F4320324891","funder_display_name":"Iran Telecommunication Research Center"}],"funders":[{"id":"https://openalex.org/F4320324891","display_name":"Iran Telecommunication Research Center","ror":"https://ror.org/01a3g2z22"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1557324374","https://openalex.org/W1956027752","https://openalex.org/W2053521124","https://openalex.org/W2101727634","https://openalex.org/W2110662303","https://openalex.org/W2116334496","https://openalex.org/W2137123606","https://openalex.org/W2141994002","https://openalex.org/W2189661557","https://openalex.org/W2195833401","https://openalex.org/W2259391824","https://openalex.org/W2259653162","https://openalex.org/W2270735382","https://openalex.org/W2272804037","https://openalex.org/W2281588363","https://openalex.org/W2539324631","https://openalex.org/W2585862295","https://openalex.org/W2792650514","https://openalex.org/W2909794597","https://openalex.org/W2936406369","https://openalex.org/W2964218543","https://openalex.org/W3158496405","https://openalex.org/W3191089146","https://openalex.org/W4205293427","https://openalex.org/W4206980933","https://openalex.org/W4402673402","https://openalex.org/W4406094159","https://openalex.org/W4406754298","https://openalex.org/W4407390520","https://openalex.org/W6684641359"],"related_works":[],"abstract_inverted_index":{"This":[0,95,115],"paper":[1],"proposes":[2],"a":[3,98,120],"novel,":[4],"unified":[5,116],"approach":[6,118,142],"to":[7,126],"design":[8,117],"both":[9],"radio":[10],"frequency":[11],"(RF)":[12],"and":[13,51,74,123],"baseband":[14],"beamforming":[15],"(BF)":[16],"solutions":[17,110],"for":[18,81,97],"wideband":[19,42],"hybrid":[20,43],"multiple-input":[21],"multiple-output":[22],"(MIMO)":[23],"systems":[24],"using":[25],"the":[26,41,82,86,104,107,113,136,140],"Riemannian":[27,64],"manifold":[28],"optimization.":[29],"The":[30],"proposed":[31,141],"two-stage":[32],"optimization":[33,58,128],"framework":[34],"effectively":[35],"addresses":[36],"various":[37],"power":[38,53,75],"constraints":[39],"of":[40,85,109,139],"MIMO":[44],"systems,":[45],"including":[46],"total":[47],"sum":[48],"power,":[49],"per-RF-chain,":[50],"per-antenna":[52],"constraints.":[54,114,132],"By":[55],"transforming":[56],"constrained":[57],"problems":[59,129],"into":[60],"unconstrained":[61,92],"ones":[62],"on":[63],"submanifolds,":[65],"we":[66,79],"achieve":[67],"notable":[68],"improvements":[69],"in":[70],"spectral":[71],"efficiency":[72],"(SE)":[73],"consumption.":[76],"In":[77],"addition,":[78],"account":[80],"log-determinant":[83],"structure":[84],"objective":[87],"function,":[88],"which":[89],"forms":[90],"an":[91],"solution":[93,125],"subspace.":[94],"allows":[96],"more":[99,121],"efficient":[100,124],"retraction":[101],"process":[102],"towards":[103],"manifold,":[105],"representing":[106],"set":[108],"that":[111],"satisfy":[112],"provides":[119],"accurate":[122],"non-convex":[127],"with":[130],"complex":[131],"Simulation":[133],"results":[134],"demonstrate":[135],"superior":[137],"performance":[138],"over":[143],"conventional":[144],"approaches.":[145]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2}],"updated_date":"2025-12-21T01:58:51.020947","created_date":"2025-10-10T00:00:00"}
