{"id":"https://openalex.org/W3156156093","doi":"https://doi.org/10.1109/twc.2021.3070387","title":"Estimation of Wideband IQ Imbalance in MIMO OFDM Systems With CFO","display_name":"Estimation of Wideband IQ Imbalance in MIMO OFDM Systems With CFO","publication_year":2021,"publication_date":"2021-04-09","ids":{"openalex":"https://openalex.org/W3156156093","doi":"https://doi.org/10.1109/twc.2021.3070387","mag":"3156156093"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2021.3070387","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2021.3070387","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/A5022264757","display_name":"Magnus Sandell","orcid":"https://orcid.org/0000-0001-8625-5394"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Magnus Sandell","raw_affiliation_strings":["Bristol Research and Innovation Laboratory, Toshiba Research Europe Ltd. (TREL), Bristol, U.K"],"affiliations":[{"raw_affiliation_string":"Bristol Research and Innovation Laboratory, Toshiba Research Europe Ltd. (TREL), Bristol, U.K","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031774658","display_name":"Evgeny Tsimbalo","orcid":"https://orcid.org/0000-0002-8120-582X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Evgeny Tsimbalo","raw_affiliation_strings":["Blu Wireless, Bristol, U.K","Bristol Research and Innovation Laboratory, Toshiba Research Europe Ltd. (TREL), Bristol, U.K"],"affiliations":[{"raw_affiliation_string":"Blu Wireless, Bristol, U.K","institution_ids":[]},{"raw_affiliation_string":"Bristol Research and Innovation Laboratory, Toshiba Research Europe Ltd. (TREL), Bristol, U.K","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043799357","display_name":"Seifallah Jardak","orcid":"https://orcid.org/0000-0001-6169-6601"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Seifallah Jardak","raw_affiliation_strings":["Bristol Research and Innovation Laboratory, Toshiba Research Europe Ltd. (TREL), Bristol, U.K"],"affiliations":[{"raw_affiliation_string":"Bristol Research and Innovation Laboratory, Toshiba Research Europe Ltd. (TREL), Bristol, U.K","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041549964","display_name":"Daisuke Uchida","orcid":"https://orcid.org/0000-0003-0724-6495"},"institutions":[{"id":"https://openalex.org/I1292669757","display_name":"Toshiba (Japan)","ror":"https://ror.org/0326v3z14","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Daisuke Uchida","raw_affiliation_strings":["Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan"],"affiliations":[{"raw_affiliation_string":"Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan","institution_ids":["https://openalex.org/I1292669757"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077149014","display_name":"Koji Akita","orcid":null},"institutions":[{"id":"https://openalex.org/I1292669757","display_name":"Toshiba (Japan)","ror":"https://ror.org/0326v3z14","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Koji Akita","raw_affiliation_strings":["Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan"],"affiliations":[{"raw_affiliation_string":"Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan","institution_ids":["https://openalex.org/I1292669757"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025347525","display_name":"Daiki Yoda","orcid":"https://orcid.org/0000-0001-6959-6998"},"institutions":[{"id":"https://openalex.org/I1292669757","display_name":"Toshiba (Japan)","ror":"https://ror.org/0326v3z14","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Daiki Yoda","raw_affiliation_strings":["Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan"],"affiliations":[{"raw_affiliation_string":"Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan","institution_ids":["https://openalex.org/I1292669757"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101695805","display_name":"Tamio Kawaguchi","orcid":"https://orcid.org/0000-0001-5995-3728"},"institutions":[{"id":"https://openalex.org/I1292669757","display_name":"Toshiba (Japan)","ror":"https://ror.org/0326v3z14","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tamio Kawaguchi","raw_affiliation_strings":["Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan"],"affiliations":[{"raw_affiliation_string":"Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan","institution_ids":["https://openalex.org/I1292669757"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006983510","display_name":"Makoto Sano","orcid":"https://orcid.org/0000-0001-9385-1370"},"institutions":[{"id":"https://openalex.org/I1292669757","display_name":"Toshiba (Japan)","ror":"https://ror.org/0326v3z14","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Makoto Sano","raw_affiliation_strings":["Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan"],"affiliations":[{"raw_affiliation_string":"Wireless System Laboratory, Corporate Research and Development Center, Toshiba Corporation, Kawasaki, Japan","institution_ids":["https://openalex.org/I1292669757"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5022264757"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.7203,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":{"value":0.84129762,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":"20","issue":"9","first_page":"5821","last_page":"5830"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9990000128746033,"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":0.9990000128746033,"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/T11248","display_name":"Advanced Power Amplifier Design","score":0.9988999962806702,"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":0.9983000159263611,"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/carrier-frequency-offset","display_name":"Carrier frequency offset","score":0.8208094239234924},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7327044606208801},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7069137692451477},{"id":"https://openalex.org/keywords/wideband","display_name":"Wideband","score":0.6823720335960388},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5812146663665771},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.45004990696907043},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.42016831040382385},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3084680736064911},{"id":"https://openalex.org/keywords/frequency-offset","display_name":"Frequency offset","score":0.23587876558303833},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.19403189420700073},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11734512448310852}],"concepts":[{"id":"https://openalex.org/C2776108382","wikidata":"https://www.wikidata.org/wiki/Q25111451","display_name":"Carrier frequency offset","level":5,"score":0.8208094239234924},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7327044606208801},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7069137692451477},{"id":"https://openalex.org/C2780202535","wikidata":"https://www.wikidata.org/wiki/Q4524457","display_name":"Wideband","level":2,"score":0.6823720335960388},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5812146663665771},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.45004990696907043},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.42016831040382385},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3084680736064911},{"id":"https://openalex.org/C49319798","wikidata":"https://www.wikidata.org/wiki/Q5502874","display_name":"Frequency offset","level":4,"score":0.23587876558303833},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.19403189420700073},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11734512448310852}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2021.3070387","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2021.3070387","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":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W648622394","https://openalex.org/W1511028545","https://openalex.org/W1970870174","https://openalex.org/W1981230256","https://openalex.org/W1984841270","https://openalex.org/W2116994946","https://openalex.org/W2117496770","https://openalex.org/W2119741678","https://openalex.org/W2123476629","https://openalex.org/W2125163486","https://openalex.org/W2125613111","https://openalex.org/W2132147894","https://openalex.org/W2140222998","https://openalex.org/W2146410031","https://openalex.org/W2154451683","https://openalex.org/W2587662090","https://openalex.org/W2610857016","https://openalex.org/W3009418641","https://openalex.org/W3036427000","https://openalex.org/W6780197901"],"related_works":["https://openalex.org/W2183273440","https://openalex.org/W2181352736","https://openalex.org/W2164367930","https://openalex.org/W4385774821","https://openalex.org/W2811018130","https://openalex.org/W1965281974","https://openalex.org/W24185419","https://openalex.org/W3126424621","https://openalex.org/W1979121255","https://openalex.org/W2509553561"],"abstract_inverted_index":{"This":[0,78],"paper":[1],"deals":[2],"with":[3,13],"IQ":[4,18,41,85,102],"imbalance":[5,19,42,86,103],"in":[6,44,88,104],"wideband":[7],"MIMO":[8,46],"OFDM":[9],"systems.":[10],"In":[11],"systems":[12],"a":[14,29,36,45,49,56,73,105],"large":[15],"bandwidth,":[16],"the":[17,40,53,60,69,81,100],"will":[20],"be":[21,26,65],"frequency-dependent":[22],"and":[23,83,97],"hence":[24],"cannot":[25],"described":[27],"by":[28,95],"single":[30],"parameter.":[31],"Furthermore":[32],"if":[33],"there":[34],"is":[35],"carrier-frequency":[37],"offset":[38],"(CFO),":[39],"estimation":[43],"system":[47],"becomes":[48],"challenging":[50],"task.":[51],"However":[52],"CFO":[54],"introduces":[55],"time-varying":[57],"component":[58],"to":[59,67],"received":[61],"signal":[62],"which":[63],"can":[64],"exploited":[66],"estimate":[68],"model":[70],"parameters":[71],"using":[72],"carefully":[74],"designed":[75],"training":[76],"sequence.":[77],"approach":[79],"obtains":[80],"TX":[82],"RX":[84],"separately":[87],"an":[89],"accurate":[90],"fashion.":[91],"We":[92],"verify":[93],"this":[94],"simulations":[96],"also":[98],"show":[99],"estimated":[101],"customised":[106],"hardware":[107],"prototype.":[108]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":4}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}