{"id":"https://openalex.org/W2012019576","doi":"https://doi.org/10.1155/2009/752895","title":"A Fast LMMSE Channel Estimation Method for OFDM Systems","display_name":"A Fast LMMSE Channel Estimation Method for OFDM Systems","publication_year":2009,"publication_date":"2009-05-04","ids":{"openalex":"https://openalex.org/W2012019576","doi":"https://doi.org/10.1155/2009/752895","mag":"2012019576"},"language":"en","primary_location":{"id":"doi:10.1155/2009/752895","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2009/752895","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1155/2009/752895","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1155/2009/752895","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5084459298","display_name":"Wen Zhou","orcid":"https://orcid.org/0000-0003-4831-3375"},"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"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Wen Zhou","raw_affiliation_strings":["Department of Electrical and Electronics Engineering, The University of Hong Kong, Hong Kong","Department of Electrical & Electronics Engineering, The University of Hong Kong, Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronics Engineering, The University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I889458895"]},{"raw_affiliation_string":"Department of Electrical & Electronics Engineering, The University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040813749","display_name":"Weng Hoong Lam","orcid":"https://orcid.org/0000-0001-6733-5049"},"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"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Wong Hing Lam","raw_affiliation_strings":["Department of Electrical and Electronics Engineering, The University of Hong Kong, Hong Kong","Department of Electrical & Electronics Engineering, The University of Hong Kong, Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronics Engineering, The University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I889458895"]},{"raw_affiliation_string":"Department of Electrical & Electronics Engineering, The University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5084459298"],"corresponding_institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"],"apc_list":{"value":1665,"currency":"USD","value_usd":1665},"apc_paid":{"value":1665,"currency":"USD","value_usd":1665},"fwci":1.5838,"has_fulltext":true,"cited_by_count":38,"citation_normalized_percentile":{"value":0.83409554,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"2009","issue":"1","first_page":null,"last_page":null},"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9998999834060669,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.9998999834060669,"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/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.734260618686676},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7230610847473145},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6568194627761841},{"id":"https://openalex.org/keywords/fast-fourier-transform","display_name":"Fast Fourier transform","score":0.6471933126449585},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6069637537002563},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.5108522772789001},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5083782076835632},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.43817752599716187},{"id":"https://openalex.org/keywords/statistic","display_name":"Statistic","score":0.4278724491596222},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.32606059312820435},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.14975550770759583},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.11513900756835938},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.08985486626625061}],"concepts":[{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.734260618686676},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7230610847473145},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6568194627761841},{"id":"https://openalex.org/C75172450","wikidata":"https://www.wikidata.org/wiki/Q623950","display_name":"Fast Fourier transform","level":2,"score":0.6471933126449585},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6069637537002563},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.5108522772789001},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5083782076835632},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.43817752599716187},{"id":"https://openalex.org/C89128539","wikidata":"https://www.wikidata.org/wiki/Q1949963","display_name":"Statistic","level":2,"score":0.4278724491596222},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.32606059312820435},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.14975550770759583},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.11513900756835938},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.08985486626625061}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1155/2009/752895","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2009/752895","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1155/2009/752895","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:274a19a64e304522aeee4e184d0406fe","is_oa":true,"landing_page_url":"https://doaj.org/article/274a19a64e304522aeee4e184d0406fe","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking, Vol 2009 (2009)","raw_type":"article"},{"id":"pmh:oai:hub.hku.hk:10722/58814","is_oa":true,"landing_page_url":"http://hdl.handle.net/10722/58814","pdf_url":null,"source":{"id":"https://openalex.org/S4377196271","display_name":"The HKU Scholars Hub (University of Hong Kong)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I889458895","host_organization_name":"University of Hong Kong","host_organization_lineage":["https://openalex.org/I889458895"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":{"id":"doi:10.1155/2009/752895","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2009/752895","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1155/2009/752895","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2012019576.pdf","grobid_xml":"https://content.openalex.org/works/W2012019576.grobid-xml"},"referenced_works_count":25,"referenced_works":["https://openalex.org/W87496662","https://openalex.org/W1492221128","https://openalex.org/W1503226796","https://openalex.org/W1577300772","https://openalex.org/W2004615135","https://openalex.org/W2016187723","https://openalex.org/W2103699908","https://openalex.org/W2113103991","https://openalex.org/W2114004090","https://openalex.org/W2115196109","https://openalex.org/W2115702505","https://openalex.org/W2120597001","https://openalex.org/W2121051729","https://openalex.org/W2139399084","https://openalex.org/W2141229186","https://openalex.org/W2141989224","https://openalex.org/W2145417574","https://openalex.org/W2145823187","https://openalex.org/W2149063205","https://openalex.org/W2149547360","https://openalex.org/W2154395274","https://openalex.org/W2157195543","https://openalex.org/W2160015451","https://openalex.org/W2164514900","https://openalex.org/W2171570506"],"related_works":["https://openalex.org/W1823550417","https://openalex.org/W2147186021","https://openalex.org/W4200390541","https://openalex.org/W4321843682","https://openalex.org/W2151541251","https://openalex.org/W2047006631","https://openalex.org/W2187692743","https://openalex.org/W1498781268","https://openalex.org/W2038230493","https://openalex.org/W2099955065"],"abstract_inverted_index":{"A":[0],"fast":[1,58],"linear":[2],"minimum":[3],"mean":[4,73],"square":[5,74],"error":[6,143],"(LMMSE)":[7],"channel":[8,27,31,42],"estimation":[9,32,85],"method":[10,33,80,98,127,138],"has":[11],"been":[12,87],"proposed":[13,30,79,97,126],"for":[14],"Orthogonal":[15],"Frequency":[16],"Division":[17],"Multiplexing":[18],"(OFDM)":[19],"systems.":[20],"In":[21,116],"comparison":[22],"with":[23,132],"the":[24,29,37,41,47,57,64,78,82,93,96,105,122,125,130,135],"conventional":[25,83,106,136],"LMMSE":[26,84,107,137],"estimation,":[28],"does":[34],"not":[35],"require":[36],"statistic":[38],"knowledge":[39],"of":[40,50,77,95,104,124,134,141],"in":[43,139],"advance":[44],"and":[45,81],"avoids":[46],"inverse":[48],"operation":[49],"a":[51],"large":[52],"dimension":[53],"matrix":[54],"by":[55,113],"using":[56],"Fourier":[59],"transform":[60],"(FFT)":[61],"operation.":[62],"Therefore,":[63],"computational":[65],"complexity":[66],"can":[67],"be":[68],"reduced":[69],"significantly.":[70],"The":[71],"normalized":[72],"errors":[75],"(NMSEs)":[76],"have":[86],"derived.":[88],"Numerical":[89],"results":[90],"show":[91],"that":[92,103,121,133],"NMSE":[94],"is":[99,110,128],"very":[100],"close":[101],"to":[102],"method,":[108],"which":[109],"also":[111],"verified":[112],"computer":[114,118],"simulation.":[115],"addition,":[117],"simulation":[119],"shows":[120],"performance":[123],"almost":[129],"same":[131],"terms":[140],"bit":[142],"rate":[144],"(BER).":[145]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":5},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":4},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":4}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}