{"id":"https://openalex.org/W2944933595","doi":"https://doi.org/10.1109/lcomm.2019.2916797","title":"Online Extreme Learning Machine-Based Channel Estimation and Equalization for OFDM Systems","display_name":"Online Extreme Learning Machine-Based Channel Estimation and Equalization for OFDM Systems","publication_year":2019,"publication_date":"2019-05-15","ids":{"openalex":"https://openalex.org/W2944933595","doi":"https://doi.org/10.1109/lcomm.2019.2916797","mag":"2944933595"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2019.2916797","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2019.2916797","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 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/A5039916999","display_name":"Jun Liu","orcid":"https://orcid.org/0000-0001-8769-7231"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jun Liu","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0001-8769-7231","affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054608700","display_name":"Kai Mei","orcid":"https://orcid.org/0000-0001-6191-3215"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kai Mei","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0001-6191-3215","affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100458555","display_name":"Xiaochen Zhang","orcid":"https://orcid.org/0000-0002-7154-5337"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaochen Zhang","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025383728","display_name":"Dongtang Ma","orcid":"https://orcid.org/0000-0001-6860-9312"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dongtang Ma","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5020741290","display_name":"Jibo Wei","orcid":"https://orcid.org/0000-0003-0165-6119"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jibo Wei","raw_affiliation_strings":["College of Electronic Science and Technology, National University of Defense Technology, Changsha, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic Science and Technology, National University of Defense Technology, Changsha, China","institution_ids":["https://openalex.org/I170215575"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5039916999"],"corresponding_institution_ids":["https://openalex.org/I170215575"],"apc_list":null,"apc_paid":null,"fwci":11.1261,"has_fulltext":false,"cited_by_count":109,"citation_normalized_percentile":{"value":0.98652863,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"23","issue":"7","first_page":"1276","last_page":"1279"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11321","display_name":"Error Correcting Code Techniques","score":0.9973999857902527,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9972000122070312,"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":0.7888656854629517},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7790473699569702},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.7684049606323242},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.6491352319717407},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.5903011560440063},{"id":"https://openalex.org/keywords/rayleigh-fading","display_name":"Rayleigh fading","score":0.5078456997871399},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.4975786507129669},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4828382134437561},{"id":"https://openalex.org/keywords/nonlinear-distortion","display_name":"Nonlinear distortion","score":0.4765658676624298},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.43950819969177246},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3773042559623718},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.375799298286438},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.32068270444869995},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.25956401228904724},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2144974172115326},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.10242468118667603},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.10076597332954407}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7888656854629517},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7790473699569702},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.7684049606323242},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.6491352319717407},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.5903011560440063},{"id":"https://openalex.org/C56985126","wikidata":"https://www.wikidata.org/wiki/Q854039","display_name":"Rayleigh fading","level":4,"score":0.5078456997871399},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.4975786507129669},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4828382134437561},{"id":"https://openalex.org/C173413354","wikidata":"https://www.wikidata.org/wiki/Q7049470","display_name":"Nonlinear distortion","level":4,"score":0.4765658676624298},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.43950819969177246},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3773042559623718},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.375799298286438},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.32068270444869995},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.25956401228904724},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2144974172115326},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10242468118667603},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.10076597332954407},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2019.2916797","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2019.2916797","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4038673326","display_name":null,"funder_award_id":"61372099","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5957157650","display_name":null,"funder_award_id":"61601480","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6087039593","display_name":null,"funder_award_id":"ZK-17-03-13","funder_id":"https://openalex.org/F4320324150","funder_display_name":"National University of Defense Technology"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320324150","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W2101397645","https://openalex.org/W2103699908","https://openalex.org/W2163572752","https://openalex.org/W2164177859","https://openalex.org/W2618746189","https://openalex.org/W2810871807","https://openalex.org/W2886124254","https://openalex.org/W2962964572","https://openalex.org/W2963190722","https://openalex.org/W2963836746"],"related_works":["https://openalex.org/W2116044594","https://openalex.org/W2101999641","https://openalex.org/W1503152075","https://openalex.org/W301676527","https://openalex.org/W2052600062","https://openalex.org/W2124541664","https://openalex.org/W289296924","https://openalex.org/W2122920812","https://openalex.org/W2076148615","https://openalex.org/W2942696422"],"abstract_inverted_index":{"Machine":[0],"learning-based":[1],"channel":[2,34,61],"estimation":[3,62],"and":[4,11,38,63,83,107,115,119,124,143,151],"equalization":[5,64],"methods":[6,25],"may":[7],"improve":[8],"the":[9,21,84,97,102,109,127,130,154],"robustness":[10,128],"bit":[12],"error":[13],"rate":[14],"(BER)":[15],"performance":[16],"of":[17,23,104,129],"communication":[18],"systems.":[19],"However,":[20],"implementation":[22],"these":[24],"has":[26,108],"been":[27],"blocked":[28],"by":[29,136],"some":[30],"limitations,":[31,50],"mainly":[32],"including":[33],"model-based":[35],"offline":[36],"training":[37,42],"high-computational":[39],"complexity":[40],"for":[41,74],"deep":[43],"neural":[44],"network":[45,72],"(DNN).":[46],"To":[47],"overcome":[48],"those":[49],"we":[51],"propose":[52],"an":[53,89],"online":[54],"fully":[55],"complex":[56],"extreme":[57],"learning":[58],"machine":[59],"(C-ELM)-based":[60],"scheme":[65,99,132],"with":[66,153],"a":[67],"single":[68],"hidden":[69],"layer":[70],"feedforward":[71],"(SLFN)":[73],"orthogonal":[75],"frequency-division":[76],"multiplexing":[77],"(OFDM)":[78],"systems":[79],"against":[80],"fading":[81,116,141],"channels":[82,105],"nonlinear":[85,113],"distortion":[86,114],"resulting":[87],"from":[88],"high-power":[90],"amplifier":[91],"(HPA).":[92],"Computer":[93],"simulations":[94,138],"show":[95],"that":[96],"proposed":[98,131],"can":[100],"acquire":[101],"information":[103],"accurately":[106],"ability":[110,147],"to":[111],"resist":[112],"without":[117],"pre-training":[118],"feedback":[120],"link":[121],"between":[122],"receiver":[123],"transmitter.":[125],"Furthermore,":[126],"is":[133,148],"well":[134],"investigated":[135],"extensive":[137],"in":[139],"various":[140],"channels,":[142],"its":[144],"excellent":[145],"generalization":[146],"also":[149],"discussed":[150],"compared":[152],"DNN.":[155]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":11},{"year":2023,"cited_by_count":17},{"year":2022,"cited_by_count":18},{"year":2021,"cited_by_count":28},{"year":2020,"cited_by_count":27},{"year":2019,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}