{"id":"https://openalex.org/W4414538477","doi":"https://doi.org/10.1109/icc52391.2025.11161859","title":"Novel Two-Phase Channel Estimation for RIS-Aided MIMO mmWave Systems in Angle Domain","display_name":"Novel Two-Phase Channel Estimation for RIS-Aided MIMO mmWave Systems in Angle Domain","publication_year":2025,"publication_date":"2025-06-08","ids":{"openalex":"https://openalex.org/W4414538477","doi":"https://doi.org/10.1109/icc52391.2025.11161859"},"language":"en","primary_location":{"id":"doi:10.1109/icc52391.2025.11161859","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc52391.2025.11161859","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICC 2025 - IEEE International Conference on Communications","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/A5075711813","display_name":"Liuchang Zhuo","orcid":"https://orcid.org/0009-0001-9289-2258"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Liuchang Zhuo","raw_affiliation_strings":["Southeast University,Nanjing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southeast University,Nanjing,China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075696071","display_name":"Cunhua Pan","orcid":"https://orcid.org/0000-0001-5286-7958"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Cunhua Pan","raw_affiliation_strings":["Southeast University,Nanjing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southeast University,Nanjing,China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101308419","display_name":"Hong Ren","orcid":"https://orcid.org/0009-0002-6814-1494"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hong Ren","raw_affiliation_strings":["Southeast University,Nanjing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southeast University,Nanjing,China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109758793","display_name":"Ruisong Weng","orcid":null},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruisong Weng","raw_affiliation_strings":["Southeast University,Nanjing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southeast University,Nanjing,China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029002143","display_name":"Jiangzhou Wang","orcid":"https://orcid.org/0000-0003-0881-3594"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiangzhou Wang","raw_affiliation_strings":["Southeast University,Nanjing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southeast University,Nanjing,China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"6934","last_page":"6939"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9994000196456909,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9994000196456909,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9984999895095825,"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/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9930999875068665,"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/precoding","display_name":"Precoding","score":0.8712000250816345},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6980999708175659},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.669700026512146},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6287000179290771},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.4957999885082245},{"id":"https://openalex.org/keywords/multi-user-mimo","display_name":"Multi-user MIMO","score":0.400299996137619},{"id":"https://openalex.org/keywords/transceiver","display_name":"Transceiver","score":0.37959998846054077},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.35260000824928284}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.8712000250816345},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6980999708175659},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.669700026512146},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6287000179290771},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.582099974155426},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5073000192642212},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4957999885082245},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42329999804496765},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.400299996137619},{"id":"https://openalex.org/C7720470","wikidata":"https://www.wikidata.org/wiki/Q954187","display_name":"Transceiver","level":3,"score":0.37959998846054077},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.35260000824928284},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3359000086784363},{"id":"https://openalex.org/C150060386","wikidata":"https://www.wikidata.org/wiki/Q7574054","display_name":"Spatial correlation","level":2,"score":0.328000009059906},{"id":"https://openalex.org/C36503486","wikidata":"https://www.wikidata.org/wiki/Q11235244","display_name":"Domain (mathematical analysis)","level":2,"score":0.3262999951839447},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.32580000162124634},{"id":"https://openalex.org/C62191587","wikidata":"https://www.wikidata.org/wiki/Q4771249","display_name":"Antenna array","level":3,"score":0.31769999861717224},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.2971000075340271},{"id":"https://openalex.org/C103824480","wikidata":"https://www.wikidata.org/wiki/Q185889","display_name":"Time domain","level":2,"score":0.2953000068664551},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2915000021457672},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.28529998660087585},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.2745000123977661},{"id":"https://openalex.org/C165650700","wikidata":"https://www.wikidata.org/wiki/Q4636347","display_name":"3G MIMO","level":4,"score":0.2646999955177307},{"id":"https://openalex.org/C2776799497","wikidata":"https://www.wikidata.org/wiki/Q484298","display_name":"Surface (topology)","level":2,"score":0.2567000091075897}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icc52391.2025.11161859","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc52391.2025.11161859","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICC 2025 - IEEE International Conference on Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6525716051","display_name":null,"funder_award_id":"2242022k60001","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"},{"id":"https://openalex.org/G6578954843","display_name":null,"funder_award_id":"62201137","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1991056455","https://openalex.org/W2145096794","https://openalex.org/W2973110004","https://openalex.org/W2985466239","https://openalex.org/W2990747873","https://openalex.org/W3178081691","https://openalex.org/W3180206688","https://openalex.org/W3184603866","https://openalex.org/W4312051188","https://openalex.org/W4321770460","https://openalex.org/W4378421618","https://openalex.org/W4381785946"],"related_works":[],"abstract_inverted_index":{"In":[0,112],"most":[1],"existing":[2],"works":[3],"focusing":[4],"on":[5,133],"channel":[6,40,78,101],"estimation":[7,79],"for":[8,46],"reconfigurable":[9],"intelligent":[10],"surface":[11],"(RIS)-Aided":[12],"MU-MIMO":[13],"mmWave":[14],"systems,":[15],"Simultaneous":[16],"Orthogonal":[17],"Matching":[18],"Pursuit":[19],"(SOMP)":[20],"method":[21,137],"is":[22,59,108],"used":[23],"to":[24,34,62,103],"estimate":[25],"the":[26,32,36,55,63,69,89,95,98,104,113,118,123,134,143,153,161,164],"angle":[27,85],"of":[28,57,66,120,126,163],"departure":[29],"(AoD)":[30],"at":[31],"users":[33],"convert":[35],"overall":[37,154],"MIMO":[38,155],"cascaded":[39,44,156],"into":[41,152],"multiple":[42],"MISO":[43],"channels":[45,146],"further":[47],"estimation.":[48],"However,":[49],"it":[50],"has":[51],"poor":[52],"performance":[53],"when":[54],"number":[56],"antennas":[58],"small":[60],"due":[61],"strong":[64],"correlation":[65,125],"atoms":[67],"in":[68,84,88],"dictionary.":[70],"This":[71],"paper":[72],"proposes":[73],"a":[74],"novel":[75],"uplink":[76],"two-phase":[77],"scheme":[80],"with":[81,138],"high":[82,139],"accuracy":[83],"domain.":[86],"Specifically,":[87],"first":[90],"phase,":[91,115],"by":[92,116],"carefully":[93],"designing":[94],"precoding":[96],"matrix,":[97],"1-th":[99],"sub-cascaded":[100,145],"related":[102],"1":[105],"-th":[106],"antenna":[107],"separated":[109],"and":[110,122,150],"estimated.":[111],"second":[114],"utilizing":[117],"invariance":[119],"angles":[121],"linear":[124],"gains,":[127],"AoDs":[128],"can":[129,147],"be":[130,148],"estimated":[131],"based":[132],"one-dimensional":[135],"search":[136],"accuracy.":[140],"Thus,":[141],"all":[142],"remaining":[144],"calculated":[149],"combined":[151],"channel.":[157],"Simulation":[158],"results":[159],"demonstrate":[160],"superiority":[162],"proposed":[165],"algorithm.":[166]},"counts_by_year":[],"updated_date":"2026-07-17T09:13:05.818461","created_date":"2025-10-10T00:00:00"}