{"id":"https://openalex.org/W4387682317","doi":"https://doi.org/10.1109/twc.2023.3322984","title":"Threshold-Enhanced Hierarchical Spatial Non-Stationary Channel Estimation for Uplink Massive MIMO Systems","display_name":"Threshold-Enhanced Hierarchical Spatial Non-Stationary Channel Estimation for Uplink Massive MIMO Systems","publication_year":2023,"publication_date":"2023-10-16","ids":{"openalex":"https://openalex.org/W4387682317","doi":"https://doi.org/10.1109/twc.2023.3322984"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2023.3322984","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2023.3322984","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless Communications","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/A5104249289","display_name":"Chongyang Tan","orcid":"https://orcid.org/0009-0003-9665-4462"},"institutions":[{"id":"https://openalex.org/I159948400","display_name":"Jinan University","ror":"https://ror.org/02xe5ns62","country_code":"CN","type":"education","lineage":["https://openalex.org/I159948400"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Chongyang Tan","raw_affiliation_strings":["College of Information Science Technology, Jinan University, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"College of Information Science Technology, Jinan University, Guangzhou, China","institution_ids":["https://openalex.org/I159948400"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008996322","display_name":"Donghong Cai","orcid":"https://orcid.org/0000-0001-5350-135X"},"institutions":[{"id":"https://openalex.org/I159948400","display_name":"Jinan University","ror":"https://ror.org/02xe5ns62","country_code":"CN","type":"education","lineage":["https://openalex.org/I159948400"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Donghong Cai","raw_affiliation_strings":["College of Information Science Technology, Jinan University, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"College of Information Science Technology, Jinan University, Guangzhou, China","institution_ids":["https://openalex.org/I159948400"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102815432","display_name":"Yanqing Xu","orcid":"https://orcid.org/0000-0002-1503-2983"},"institutions":[{"id":"https://openalex.org/I4210116924","display_name":"Chinese University of Hong Kong, Shenzhen","ror":"https://ror.org/02d5ks197","country_code":"CN","type":"education","lineage":["https://openalex.org/I177725633","https://openalex.org/I180726961","https://openalex.org/I4210116924"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanqing Xu","raw_affiliation_strings":["School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, China"],"affiliations":[{"raw_affiliation_string":"School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, China","institution_ids":["https://openalex.org/I4210116924"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002904166","display_name":"Zhiguo Ding","orcid":"https://orcid.org/0000-0001-5280-384X"},"institutions":[{"id":"https://openalex.org/I28407311","display_name":"University of Manchester","ror":"https://ror.org/027m9bs27","country_code":"GB","type":"education","lineage":["https://openalex.org/I28407311"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Zhiguo Ding","raw_affiliation_strings":["School of Electrical and Electronic Engineering, The University of Manchester, Manchester, U.K"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Electronic Engineering, The University of Manchester, Manchester, U.K","institution_ids":["https://openalex.org/I28407311"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101880047","display_name":"Pingzhi Fan","orcid":"https://orcid.org/0000-0002-8281-6251"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pingzhi Fan","raw_affiliation_strings":["Key Laboratory of Information Coding and Transmission, Southwest Jiaotong University, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Information Coding and Transmission, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5104249289"],"corresponding_institution_ids":["https://openalex.org/I159948400"],"apc_list":null,"apc_paid":null,"fwci":1.9413,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.86463891,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"23","issue":"5","first_page":"4830","last_page":"4844"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":1.0,"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":1.0,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9991999864578247,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/mimo","display_name":"MIMO","score":0.7083483338356018},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.7070705890655518},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6380388140678406},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.604073703289032},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.5261744260787964},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5253046154975891},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5071055889129639},{"id":"https://openalex.org/keywords/row","display_name":"Row","score":0.5037681460380554},{"id":"https://openalex.org/keywords/row-and-column-spaces","display_name":"Row and column spaces","score":0.46679478883743286},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.4524024426937103},{"id":"https://openalex.org/keywords/spatial-correlation","display_name":"Spatial correlation","score":0.4523131251335144},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.43677663803100586},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.41794878244400024},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.330846905708313},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.18355819582939148},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.0863436758518219}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7083483338356018},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.7070705890655518},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6380388140678406},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.604073703289032},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.5261744260787964},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5253046154975891},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5071055889129639},{"id":"https://openalex.org/C135598885","wikidata":"https://www.wikidata.org/wiki/Q1366302","display_name":"Row","level":2,"score":0.5037681460380554},{"id":"https://openalex.org/C104140500","wikidata":"https://www.wikidata.org/wiki/Q2088159","display_name":"Row and column spaces","level":3,"score":0.46679478883743286},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.4524024426937103},{"id":"https://openalex.org/C150060386","wikidata":"https://www.wikidata.org/wiki/Q7574054","display_name":"Spatial correlation","level":2,"score":0.4523131251335144},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.43677663803100586},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.41794878244400024},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.330846905708313},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.18355819582939148},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0863436758518219},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2023.3322984","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2023.3322984","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2388921650","display_name":null,"funder_award_id":"2022SB0004","funder_id":"https://openalex.org/F4320337111","funder_display_name":"Basic and Applied Basic Research Foundation of Guangdong Province"},{"id":"https://openalex.org/G2994607751","display_name":null,"funder_award_id":"62001190","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4951560784","display_name":null,"funder_award_id":"62201486","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/F4320337111","display_name":"Basic and Applied Basic Research Foundation of Guangdong Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W1904809838","https://openalex.org/W2023535408","https://openalex.org/W2100037283","https://openalex.org/W2140856955","https://openalex.org/W2141682101","https://openalex.org/W2238937638","https://openalex.org/W2272774410","https://openalex.org/W2339667469","https://openalex.org/W2604919649","https://openalex.org/W2624590726","https://openalex.org/W2643502490","https://openalex.org/W2706056020","https://openalex.org/W2898041937","https://openalex.org/W2908603021","https://openalex.org/W2950013137","https://openalex.org/W2952909243","https://openalex.org/W2964241387","https://openalex.org/W2966932878","https://openalex.org/W2972414850","https://openalex.org/W2997786076","https://openalex.org/W2997912402","https://openalex.org/W2998502442","https://openalex.org/W3006557588","https://openalex.org/W3010667791","https://openalex.org/W3011830499","https://openalex.org/W3072069827","https://openalex.org/W3099769502","https://openalex.org/W3139434649","https://openalex.org/W3157270090","https://openalex.org/W3191847224","https://openalex.org/W3203882385","https://openalex.org/W4250955649","https://openalex.org/W4288752618","https://openalex.org/W4309226445","https://openalex.org/W4392175506"],"related_works":["https://openalex.org/W2313440505","https://openalex.org/W3123744736","https://openalex.org/W2137691148","https://openalex.org/W1505848319","https://openalex.org/W4281399881","https://openalex.org/W2905020035","https://openalex.org/W3166006430","https://openalex.org/W4281971614","https://openalex.org/W2049180840","https://openalex.org/W1992086467"],"abstract_inverted_index":{"Spatial":[0],"non-stationarity":[1,57],"channel":[2,27,58,206,223],"estimation":[3,44,154,163,184,207],"for":[4,155,177],"uplink":[5],"massive":[6],"MIMO":[7],"systems":[8],"can":[9],"be":[10],"formulated":[11],"as":[12,31],"a":[13,170,174],"non-uniform":[14],"block":[15],"sparse":[16,118],"signal":[17],"recovery":[18],"problem,":[19],"in":[20,67,83,108,130,217],"which":[21,134],"the":[22,26,52,64,68,72,76,84,89,101,105,109,113,127,131,143,149,152,188,200,230,236],"hierarchical":[23,43,162,203],"sparsity":[24,33],"of":[25,55,75,151,219],"matrix":[28,59],"is":[29,97,123,166,191],"classified":[30],"row":[32,153,183],"and":[34,138,173,193,226],"in-row":[35,65,237],"sparsity.":[36,238],"This":[37],"paper":[38],"proposes":[39],"an":[40,94,159],"efficient":[41],"threshold-enhanced":[42,161,202],"(TEHE)":[45],"algorithm":[46,107,165],"without":[47],"prior":[48],"information.":[49],"More":[50],"precisely,":[51],"non-zero":[53,73,78,102,128],"rows":[54,79,129],"spatial":[56,204],"are":[60,80,185,233],"estimated":[61,77],"according":[62],"to":[63,99,125,142,180,213,235],"correlation":[66],"first":[69,132],"layer;":[70],"while":[71],"elements":[74,103],"further":[81,147],"refined":[82],"second":[85,110],"layer.":[86,111],"Different":[87],"from":[88],"existing":[90],"two-layer":[91],"iteration":[92],"algorithms,":[93],"adaptive":[95,119,160],"threshold":[96],"designed":[98],"estimate":[100],"replacing":[104],"iterative":[106],"In":[112,168],"proposed":[114,201,231],"TEHE":[115],"algorithm,":[116],"row-wise":[117],"matching":[120],"pursuit":[121],"(SAMP)":[122],"used":[124],"find":[126],"layer,":[133],"has":[135],"high":[136],"precision":[137],"lower":[139],"complexity,":[140],"compared":[141,212],"conventional":[144],"SAMP.":[145],"To":[146],"improve":[148],"efficiency":[150],"larger":[156],"antenna":[157],"array,":[158],"(A-TEHE)":[164],"proposed.":[167],"addition,":[169],"sufficient":[171],"condition":[172,176],"halting":[175],"theoretical":[178],"guarantee":[179],"obtain":[181],"accurate":[182],"developed.":[186],"Finally,":[187],"computation":[189],"complexity":[190],"analyzed":[192],"compared.":[194],"The":[195],"simulation":[196],"results":[197],"demonstrate":[198],"that":[199],"non-stationary":[205],"algorithms":[208,232],"achieve":[209],"better":[210],"performance":[211],"various":[214],"state-of-the-art":[215],"baselines":[216],"terms":[218],"support":[220],"set":[221],"estimation,":[222,225],"coefficient":[224],"computational":[227],"efficiency.":[228],"Specifically,":[229],"robust":[234]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}
