{"id":"https://openalex.org/W2809508048","doi":"https://doi.org/10.1109/lwc.2018.2848916","title":"Channel Estimation in MIMO\u2013OFDM Systems Based on a New Adaptive Greedy Algorithm","display_name":"Channel Estimation in MIMO\u2013OFDM Systems Based on a New Adaptive Greedy Algorithm","publication_year":2018,"publication_date":"2018-06-21","ids":{"openalex":"https://openalex.org/W2809508048","doi":"https://doi.org/10.1109/lwc.2018.2848916","mag":"2809508048"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2018.2848916","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2018.2848916","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","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/A5089085157","display_name":"Yuan Huang","orcid":"https://orcid.org/0000-0002-7887-0095"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yuan Huang","raw_affiliation_strings":["School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020019416","display_name":"Yigang He","orcid":"https://orcid.org/0000-0002-6642-0740"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yigang He","raw_affiliation_strings":["School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064962247","display_name":"Qiwu Luo","orcid":"https://orcid.org/0000-0003-2822-5538"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qiwu Luo","raw_affiliation_strings":["School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012833436","display_name":"Luqiang Shi","orcid":"https://orcid.org/0000-0003-3901-1535"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Luqiang Shi","raw_affiliation_strings":["School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072586608","display_name":"Yuting Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuting Wu","raw_affiliation_strings":["School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5089085157"],"corresponding_institution_ids":["https://openalex.org/I16365422"],"apc_list":null,"apc_paid":null,"fwci":3.5032,"has_fulltext":false,"cited_by_count":34,"citation_normalized_percentile":{"value":0.93148584,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":91,"max":99},"biblio":{"volume":"8","issue":"1","first_page":"29","last_page":"32"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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":0.9987999796867371,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9986000061035156,"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":0.7003188729286194},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.699381947517395},{"id":"https://openalex.org/keywords/matching-pursuit","display_name":"Matching pursuit","score":0.6645475625991821},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6516681909561157},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.6483945846557617},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.6094229221343994},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5857448577880859},{"id":"https://openalex.org/keywords/mimo-ofdm","display_name":"MIMO-OFDM","score":0.5712726712226868},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.5691675543785095},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5439460277557373},{"id":"https://openalex.org/keywords/a-priori-and-a-posteriori","display_name":"A priori and a posteriori","score":0.5425418615341187},{"id":"https://openalex.org/keywords/greedy-algorithm","display_name":"Greedy algorithm","score":0.5247091054916382},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5156256556510925},{"id":"https://openalex.org/keywords/entropy","display_name":"Entropy (arrow of time)","score":0.5110071897506714},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.47606486082077026},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12741944193840027}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7003188729286194},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.699381947517395},{"id":"https://openalex.org/C156872377","wikidata":"https://www.wikidata.org/wiki/Q6786281","display_name":"Matching pursuit","level":3,"score":0.6645475625991821},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6516681909561157},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.6483945846557617},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.6094229221343994},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5857448577880859},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.5712726712226868},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.5691675543785095},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5439460277557373},{"id":"https://openalex.org/C75553542","wikidata":"https://www.wikidata.org/wiki/Q178161","display_name":"A priori and a posteriori","level":2,"score":0.5425418615341187},{"id":"https://openalex.org/C51823790","wikidata":"https://www.wikidata.org/wiki/Q504353","display_name":"Greedy algorithm","level":2,"score":0.5247091054916382},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5156256556510925},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.5110071897506714},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.47606486082077026},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12741944193840027},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2018.2848916","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2018.2848916","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G220169509","display_name":null,"funder_award_id":"51704089","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6496176865","display_name":null,"funder_award_id":"51577046","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"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2015418199","https://openalex.org/W2086316624","https://openalex.org/W2321848620","https://openalex.org/W2351739404","https://openalex.org/W2417749954","https://openalex.org/W2555737044","https://openalex.org/W2738365393","https://openalex.org/W2766749382","https://openalex.org/W2964183150"],"related_works":["https://openalex.org/W2167568384","https://openalex.org/W1974198688","https://openalex.org/W2116541631","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W2328691998","https://openalex.org/W1976511355","https://openalex.org/W2134343866","https://openalex.org/W1973211400","https://openalex.org/W3215967011"],"abstract_inverted_index":{"Channel":[0],"estimation":[1],"methods":[2],"based":[3,33],"on":[4,34],"compressed":[5],"sensing":[6],"can":[7],"be":[8],"used":[9],"to":[10,60,76],"effectively":[11],"obtain":[12],"channel":[13,38],"state":[14],"information":[15],"of":[16,47,64],"MIMO-OFDM":[17],"systems.":[18],"This":[19],"letter":[20],"proposes":[21],"a":[22,68],"new":[23],"adaptive":[24],"matching":[25],"pursuit":[26],"(NAMP)":[27],"algorithm":[28],"and":[29,103],"the":[30,35,45,48,52,62,78,95],"evaluation":[31],"prototype":[32],"LTE-Advanced":[36],"wireless":[37],"model.":[39],"First,":[40],"NAMP":[41],"does":[42],"not":[43],"need":[44],"priori-knowledge":[46],"sparsity":[49],"level.":[50],"Second,":[51],"fixed":[53],"step":[54],"size":[55],"is":[56,74],"determined":[57],"in":[58,90,99],"order":[59,71],"improve":[61],"efficiency":[63],"signal":[65],"reconstruction.":[66],"Third,":[67],"singular":[69],"entropy":[70],"determination":[72],"mechanism":[73],"employed":[75],"prevent":[77],"less":[79],"relevant":[80],"atoms":[81],"from":[82],"being":[83],"introduced.":[84],"Finally,":[85],"simulation":[86],"results":[87,98],"are":[88],"discussed":[89],"detail,":[91],"which":[92],"demonstrate":[93],"that":[94],"proposed":[96],"method":[97],"lower":[100],"computational":[101],"complexity,":[102],"especially":[104],"achieves":[105],"more":[106],"stable":[107],"performance.":[108]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":6}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}