{"id":"https://openalex.org/W4315630357","doi":"https://doi.org/10.1109/globecom48099.2022.10001612","title":"Intelligent Near-Field Channel Estimation for Terahertz Ultra-Massive MIMO Systems","display_name":"Intelligent Near-Field Channel Estimation for Terahertz Ultra-Massive MIMO Systems","publication_year":2022,"publication_date":"2022-12-04","ids":{"openalex":"https://openalex.org/W4315630357","doi":"https://doi.org/10.1109/globecom48099.2022.10001612"},"language":"en","primary_location":{"id":"doi:10.1109/globecom48099.2022.10001612","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom48099.2022.10001612","pdf_url":null,"source":{"id":"https://openalex.org/S4363607705","display_name":"GLOBECOM 2022 - 2022 IEEE Global Communications Conference","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2022 - 2022 IEEE Global Communications Conference","raw_type":"proceedings-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/A5016411190","display_name":"Anho Lee","orcid":null},"institutions":[{"id":"https://openalex.org/I4210164379","display_name":"Seoul Media Institute of Technology","ror":"https://ror.org/04ywg4h07","country_code":"KR","type":"education","lineage":["https://openalex.org/I4210164379"]},{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]},{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["JP","KR"],"is_corresponding":true,"raw_author_name":"Anho Lee","raw_affiliation_strings":["Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea"],"affiliations":[{"raw_affiliation_string":"Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","institution_ids":["https://openalex.org/I90023481"]},{"raw_affiliation_string":"Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea","institution_ids":["https://openalex.org/I4210164379","https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033338397","display_name":"Hyungyu Ju","orcid":"https://orcid.org/0000-0002-2841-3400"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]},{"id":"https://openalex.org/I4210164379","display_name":"Seoul Media Institute of Technology","ror":"https://ror.org/04ywg4h07","country_code":"KR","type":"education","lineage":["https://openalex.org/I4210164379"]},{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP","KR"],"is_corresponding":false,"raw_author_name":"Hyungyu Ju","raw_affiliation_strings":["Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea"],"affiliations":[{"raw_affiliation_string":"Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","institution_ids":["https://openalex.org/I90023481"]},{"raw_affiliation_string":"Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea","institution_ids":["https://openalex.org/I4210164379","https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055104142","display_name":"Seungnyun Kim","orcid":"https://orcid.org/0000-0001-6435-9029"},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]},{"id":"https://openalex.org/I4210164379","display_name":"Seoul Media Institute of Technology","ror":"https://ror.org/04ywg4h07","country_code":"KR","type":"education","lineage":["https://openalex.org/I4210164379"]},{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["JP","KR"],"is_corresponding":false,"raw_author_name":"Seungnyun Kim","raw_affiliation_strings":["Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea"],"affiliations":[{"raw_affiliation_string":"Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","institution_ids":["https://openalex.org/I90023481"]},{"raw_affiliation_string":"Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea","institution_ids":["https://openalex.org/I4210164379","https://openalex.org/I139264467"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076075267","display_name":"Byonghyo Shim","orcid":"https://orcid.org/0000-0001-5051-1763"},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]},{"id":"https://openalex.org/I4210164379","display_name":"Seoul Media Institute of Technology","ror":"https://ror.org/04ywg4h07","country_code":"KR","type":"education","lineage":["https://openalex.org/I4210164379"]},{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["JP","KR"],"is_corresponding":false,"raw_author_name":"Byonghyo Shim","raw_affiliation_strings":["Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea"],"affiliations":[{"raw_affiliation_string":"Seoul National University,Institute of New Media and Communications and Department of Electrical and Computer Engineering,Korea","institution_ids":["https://openalex.org/I90023481"]},{"raw_affiliation_string":"Institute of New Media and Communications and Department of Electrical and Computer Engineering, Seoul National University, Korea","institution_ids":["https://openalex.org/I4210164379","https://openalex.org/I139264467"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5016411190"],"corresponding_institution_ids":["https://openalex.org/I139264467","https://openalex.org/I4210164379","https://openalex.org/I90023481"],"apc_list":null,"apc_paid":null,"fwci":6.0812,"has_fulltext":false,"cited_by_count":21,"citation_normalized_percentile":{"value":0.98165557,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"5390","last_page":"5395"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9998999834060669,"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":0.9998999834060669,"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":0.9994999766349792,"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":0.9991000294685364,"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/mimo","display_name":"MIMO","score":0.7638185024261475},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7492243051528931},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6822816729545593},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6734941601753235},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.6703238487243652},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.591963529586792},{"id":"https://openalex.org/keywords/terahertz-radiation","display_name":"Terahertz radiation","score":0.5576897859573364},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.5318248867988586},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5075770616531372},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.4695129096508026},{"id":"https://openalex.org/keywords/communications-system","display_name":"Communications system","score":0.4417329728603363},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.43653807044029236},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.4139120280742645},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.33975982666015625},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.28126949071884155},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1642673909664154},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09950223565101624},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.0886874794960022}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7638185024261475},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7492243051528931},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6822816729545593},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6734941601753235},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.6703238487243652},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.591963529586792},{"id":"https://openalex.org/C107816215","wikidata":"https://www.wikidata.org/wiki/Q647887","display_name":"Terahertz radiation","level":2,"score":0.5576897859573364},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.5318248867988586},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5075770616531372},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.4695129096508026},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.4417329728603363},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.43653807044029236},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.4139120280742645},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.33975982666015625},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.28126949071884155},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1642673909664154},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09950223565101624},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0886874794960022},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating 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/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/globecom48099.2022.10001612","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom48099.2022.10001612","pdf_url":null,"source":{"id":"https://openalex.org/S4363607705","display_name":"GLOBECOM 2022 - 2022 IEEE Global Communications Conference","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2022 - 2022 IEEE Global Communications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W2023535408","https://openalex.org/W2031878488","https://openalex.org/W2075856645","https://openalex.org/W2145245010","https://openalex.org/W2622044750","https://openalex.org/W2807719490","https://openalex.org/W2962959174","https://openalex.org/W2963532871","https://openalex.org/W2989278094","https://openalex.org/W3011830499","https://openalex.org/W3043953517","https://openalex.org/W3132762268","https://openalex.org/W3134054640","https://openalex.org/W3135787665","https://openalex.org/W3135884249","https://openalex.org/W4200633576","https://openalex.org/W4205727408","https://openalex.org/W4293455017","https://openalex.org/W4313887511","https://openalex.org/W6751923770","https://openalex.org/W6842928519"],"related_works":["https://openalex.org/W2167568384","https://openalex.org/W2116541631","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W1976511355","https://openalex.org/W2064335375","https://openalex.org/W2083202929","https://openalex.org/W2088352174","https://openalex.org/W2544668827","https://openalex.org/W1985632843"],"abstract_inverted_index":{"The":[0],"terahertz":[1],"(THz)":[2],"communication":[3],"systems":[4],"as-sisted":[5],"by":[6,115],"ultra-massive":[7,43],"(UM)":[8],"number":[9],"of":[10,57,155],"antennas":[11],"have":[12,47],"been":[13],"considered":[14],"as":[15],"a":[16,25,122],"promising":[17],"solution":[18],"for":[19,70,95],"future":[20],"6G":[21],"wireless":[22],"communications.":[23],"As":[24],"means":[26],"to":[27],"overcome":[28],"the":[29,65,71,81,104,117,129,134,138,144,148,156,162],"severe":[30,77],"propagation":[31],"loss":[32,79],"arising":[33],"from":[34,133],"THz":[35,96],"band":[36],"and":[37,112,161],"thus":[38],"achieve":[39],"high":[40],"beamforming":[41],"gain,":[42],"multiple-input-multiple-output":[44],"(UM-MIMO)":[45],"sys-tems":[46],"received":[48],"much":[49],"attention.":[50],"To":[51,99],"realize":[52],"highly":[53],"directional":[54],"communications,":[55],"acquisition":[56],"accurate":[58],"channel":[59,66,74,92,105,150],"state":[60],"information":[61],"is":[62],"essential":[63],"but":[64],"estimation":[67,93,151],"techniques":[68],"designed":[69],"ideal":[72],"far-field":[73],"result":[75],"in":[76,80,127,153],"performance":[78],"near-field":[82,91],"region.":[83],"In":[84],"this":[85],"paper,":[86],"we":[87,102,141],"propose":[88],"an":[89],"intelligent":[90],"technique":[94],"UM-MIMO":[97],"systems.":[98],"be":[100],"specific,":[101],"extract":[103],"parameters,":[106],"i.e.,":[107],"angles,":[108],"distances,":[109],"time":[110],"delay,":[111],"complex":[113],"gains,":[114],"exploiting":[116],"convolution":[118],"neural":[119],"network":[120,125],"(CNN),":[121],"deep":[123],"learning":[124],"specialized":[126],"capturing":[128],"spatially":[130],"correlated":[131],"features":[132],"input":[135],"data.":[136],"From":[137],"simulation":[139],"results,":[140],"demonstrate":[142],"that":[143],"proposed":[145],"scheme":[146],"outperforms":[147],"conventional":[149],"schemes":[152],"terms":[154],"bit":[157],"error":[158],"rate":[159],"(BER)":[160],"pilot":[163],"overhead":[164],"reduction.":[165]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":11},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":2}],"updated_date":"2026-04-02T15:55:50.835912","created_date":"2025-10-10T00:00:00"}
