{"id":"https://openalex.org/W4285304850","doi":"https://doi.org/10.1109/tvt.2022.3184361","title":"Hierarchical BEM Based Channel Estimation With Very Low Pilot Overhead for High Mobility MIMO-OFDM Systems","display_name":"Hierarchical BEM Based Channel Estimation With Very Low Pilot Overhead for High Mobility MIMO-OFDM Systems","publication_year":2022,"publication_date":"2022-06-20","ids":{"openalex":"https://openalex.org/W4285304850","doi":"https://doi.org/10.1109/tvt.2022.3184361"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2022.3184361","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2022.3184361","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","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/A5040572523","display_name":"Yanfeng Zhang","orcid":"https://orcid.org/0000-0001-6291-0390"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanfeng Zhang","raw_affiliation_strings":["School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0001-6291-0390","affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Xu Zhu","orcid":"https://orcid.org/0000-0002-7371-4595"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xu Zhu","raw_affiliation_strings":["School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-7371-4595","affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100454958","display_name":"Yujie Liu","orcid":"https://orcid.org/0000-0003-0437-7289"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yujie Liu","raw_affiliation_strings":["Continental-NTU Corporate Lab, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0000-0003-0437-7289","affiliations":[{"raw_affiliation_string":"Continental-NTU Corporate Lab, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071060953","display_name":"Yufei Jiang","orcid":"https://orcid.org/0000-0003-0523-8117"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yufei Jiang","raw_affiliation_strings":["School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0003-0523-8117","affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100763983","display_name":"Yong Liang Guan","orcid":"https://orcid.org/0000-0002-9757-630X"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yong Liang Guan","raw_affiliation_strings":["Continental-NTU Corporate Lab, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-9757-630X","affiliations":[{"raw_affiliation_string":"Continental-NTU Corporate Lab, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5073153992","display_name":"Vincent K. N. Lau","orcid":"https://orcid.org/0000-0001-7769-6008"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Vincent K. N. Lau","raw_affiliation_strings":["Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0001-7769-6008","affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong","institution_ids":["https://openalex.org/I200769079"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.4006,"has_fulltext":false,"cited_by_count":28,"citation_normalized_percentile":{"value":0.88939878,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":97,"max":99},"biblio":{"volume":"71","issue":"10","first_page":"10543","last_page":"10558"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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/T10125","display_name":"Advanced Wireless Communication Techniques","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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998000264167786,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.9995999932289124,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7530483603477478},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.7287812829017639},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6561056971549988},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.6554898023605347},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6357102394104004},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5076297521591187},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.49811816215515137},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.4978330135345459},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.48108312487602234},{"id":"https://openalex.org/keywords/mimo-ofdm","display_name":"MIMO-OFDM","score":0.446678102016449},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.4207555651664734},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3930667042732239},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2506798505783081},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2502337098121643},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1606011688709259},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.07382199168205261}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7530483603477478},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7287812829017639},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6561056971549988},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.6554898023605347},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6357102394104004},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5076297521591187},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.49811816215515137},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.4978330135345459},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.48108312487602234},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.446678102016449},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.4207555651664734},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3930667042732239},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2506798505783081},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2502337098121643},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1606011688709259},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.07382199168205261},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tvt.2022.3184361","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2022.3184361","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","raw_type":"journal-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-118444","is_oa":false,"landing_page_url":"http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000870332400028","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3154182134","display_name":null,"funder_award_id":"61901138","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4400050148","display_name":null,"funder_award_id":"2021A1515011832","funder_id":"https://openalex.org/F4320321921","funder_display_name":"Natural Science Foundation of Guangdong Province"},{"id":"https://openalex.org/G5160650035","display_name":null,"funder_award_id":"62171161","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/F4320321921","display_name":"Natural Science Foundation of Guangdong Province","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W1967863963","https://openalex.org/W2020203407","https://openalex.org/W2022318697","https://openalex.org/W2028783611","https://openalex.org/W2029950600","https://openalex.org/W2044762091","https://openalex.org/W2064607622","https://openalex.org/W2092734317","https://openalex.org/W2099781940","https://openalex.org/W2106558962","https://openalex.org/W2111698975","https://openalex.org/W2130010995","https://openalex.org/W2138824526","https://openalex.org/W2145103749","https://openalex.org/W2146020692","https://openalex.org/W2156788281","https://openalex.org/W2161991491","https://openalex.org/W2171075378","https://openalex.org/W2293182310","https://openalex.org/W2321848620","https://openalex.org/W2508720818","https://openalex.org/W2589078119","https://openalex.org/W2735932416","https://openalex.org/W2794398237","https://openalex.org/W2922241166","https://openalex.org/W2930535703","https://openalex.org/W2962951066","https://openalex.org/W2963904701","https://openalex.org/W2964005248","https://openalex.org/W2971052041","https://openalex.org/W3005673571","https://openalex.org/W3010528092","https://openalex.org/W3011046865","https://openalex.org/W3015756605","https://openalex.org/W3021187302","https://openalex.org/W3027849421","https://openalex.org/W3029554135","https://openalex.org/W3093680245","https://openalex.org/W3104535788","https://openalex.org/W3111335979","https://openalex.org/W3168950276","https://openalex.org/W4206180546","https://openalex.org/W4212888567","https://openalex.org/W4300770515","https://openalex.org/W4300812052","https://openalex.org/W6635388271"],"related_works":["https://openalex.org/W2366188968","https://openalex.org/W2159772567","https://openalex.org/W2188042986","https://openalex.org/W2539022530","https://openalex.org/W4317418808","https://openalex.org/W2738743879","https://openalex.org/W2187587942","https://openalex.org/W2045896346","https://openalex.org/W2136447040","https://openalex.org/W2541651465"],"abstract_inverted_index":{"Channel":[0],"estimation":[1,37,85,127,145,158],"for":[2,41,58,73],"multi-input":[3],"multi-output":[4],"orthogonal":[5],"frequency":[6],"division":[7],"multiplexing":[8],"(MIMO-OFDM)":[9],"systems":[10],"is":[11,39,56,87,108,128],"a":[12,29,47,62,95,105],"challenging":[13],"issue":[14],"in":[15,67,101,152],"high":[16],"mobility":[17],"scenarios":[18],"due":[19],"to":[20,110,130],"prohibitive":[21],"pilot":[22,49,166],"overhead":[23,50,167],"and":[24,51,94,159,168],"complexity.":[25,53,170],"In":[26],"this":[27],"paper,":[28],"hierarchical":[30,79],"basis":[31],"expansion":[32],"model":[33,86],"(BEM)":[34],"based":[35],"channel":[36,74,84,126,144,157],"scheme":[38,146],"proposed":[40,57,109,136,143],"doubly":[42],"selective":[43],"channels,":[44],"which":[45],"requires":[46],"low":[48],"computational":[52,169],"A":[54],"mixed-BEM":[55,99,113],"time-varying":[59],"channels":[60],"alongside":[61],"complex":[63],"exponential-BEM":[64],"(CE-BEM),":[65],"resulting":[66],"very":[68],"few":[69],"unknown":[70],"parameters":[71],"required":[72],"estimation.":[75],"Based":[76],"on":[77,119],"the":[78,91,102,112,120,132,135,142,149],"BEM":[80],"structure,":[81],"an":[82],"analytical":[83],"derived.":[88],"By":[89],"employing":[90],"block-structured":[92],"sparsity":[93],"small":[96],"number":[97],"of":[98,125,134,154,156],"coefficients":[100,114],"antenna-time-BEM":[103],"domain,":[104],"low-complexity":[106],"estimator":[107],"recover":[111],"accurately.":[115],"The":[116],"lower":[117,165],"bound":[118],"mean":[121],"square":[122],"error":[123,161],"(MSE)":[124],"derived":[129],"verify":[131],"effectiveness":[133],"scheme.":[137],"Simulation":[138],"results":[139],"show":[140],"that":[141],"significantly":[147],"outperforms":[148],"existing":[150],"methods":[151],"terms":[153],"MSE":[155],"bit":[160],"rate,":[162],"with":[163],"much":[164]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":9},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":5}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}