{"id":"https://openalex.org/W2026497539","doi":"https://doi.org/10.1155/2009/307375","title":"Linearly Time-Varying Channel Estimation and Symbol Detection for OFDMA Uplink Using Superimposed Training","display_name":"Linearly Time-Varying Channel Estimation and Symbol Detection for OFDMA Uplink Using Superimposed Training","publication_year":2009,"publication_date":"2009-03-04","ids":{"openalex":"https://openalex.org/W2026497539","doi":"https://doi.org/10.1155/2009/307375","mag":"2026497539"},"language":"en","primary_location":{"id":"doi:10.1155/2009/307375","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2009/307375","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1155/2009/307375","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/10.1155/2009/307375","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100399306","display_name":"Han Zhang","orcid":"https://orcid.org/0000-0002-4047-6260"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Han Zhang","raw_affiliation_strings":["Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","institution_ids":["https://openalex.org/I157773358"]},{"raw_affiliation_string":"Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109376096","display_name":"Xianhua Dai","orcid":null},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xianhua Dai","raw_affiliation_strings":["Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","institution_ids":["https://openalex.org/I157773358"]},{"raw_affiliation_string":"Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100407433","display_name":"Dong Li","orcid":"https://orcid.org/0000-0002-3694-1852"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dong Li","raw_affiliation_strings":["Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","institution_ids":["https://openalex.org/I157773358"]},{"raw_affiliation_string":"Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5107997514","display_name":"S. Ye","orcid":"https://orcid.org/0000-0002-7864-4282"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sheng Ye","raw_affiliation_strings":["Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics & Communication Engineering, Sun Yat-Sen University, Guangzhou, 510275, China","institution_ids":["https://openalex.org/I157773358"]},{"raw_affiliation_string":"Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5109376096"],"corresponding_institution_ids":["https://openalex.org/I157773358"],"apc_list":{"value":1665,"currency":"USD","value_usd":1665},"apc_paid":{"value":1665,"currency":"USD","value_usd":1665},"fwci":0.7919,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.75855947,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"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":0.9998000264167786,"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":0.9998000264167786,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7990796566009521},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6613457798957825},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6235978007316589},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5921399593353271},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.5186194777488708},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.46826842427253723},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.43666285276412964},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.4324895739555359},{"id":"https://openalex.org/keywords/demodulation","display_name":"Demodulation","score":0.42336001992225647},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.34955745935440063},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.27275869250297546}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7990796566009521},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6613457798957825},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6235978007316589},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5921399593353271},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.5186194777488708},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.46826842427253723},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.43666285276412964},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.4324895739555359},{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.42336001992225647},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.34955745935440063},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.27275869250297546}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1155/2009/307375","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2009/307375","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1155/2009/307375","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:17d0680b967f4379b30fa49ef18c92c9","is_oa":true,"landing_page_url":"https://doaj.org/article/17d0680b967f4379b30fa49ef18c92c9","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, Iss 1, p 307375 (2009)","raw_type":"article"},{"id":"pmh:oai:doaj.org/article:ad9b79cd1d2b47f7917ffada1d704b63","is_oa":true,"landing_page_url":"https://doaj.org/article/ad9b79cd1d2b47f7917ffada1d704b63","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"}],"best_oa_location":{"id":"doi:10.1155/2009/307375","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2009/307375","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1155/2009/307375","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":[{"id":"https://openalex.org/G7776813677","display_name":"\u63d0\u9ad8\u5bbd\u5e26/\u8d85\u5bbd\u5e26\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u7684\u5bb9\u91cf\u548c\u8d28\u91cf\u7684\u57fa\u7840\u7406\u8bba\u4e0e\u5173\u952e\u6280\u672f\u7684\u7814\u7a76","funder_award_id":"U0635003","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/F4320321106","display_name":"Ministry of Education of the People's Republic of China","ror":"https://ror.org/01mv9t934"},{"id":"https://openalex.org/F4320321921","display_name":"Natural Science Foundation of Guangdong Province","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2026497539.pdf","grobid_xml":"https://content.openalex.org/works/W2026497539.grobid-xml"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W1994286617","https://openalex.org/W2012719569","https://openalex.org/W2017559878","https://openalex.org/W2065023248","https://openalex.org/W2072575400","https://openalex.org/W2090355293","https://openalex.org/W2096065341","https://openalex.org/W2099357009","https://openalex.org/W2102585269","https://openalex.org/W2106248732","https://openalex.org/W2109155033","https://openalex.org/W2116883933","https://openalex.org/W2137058908","https://openalex.org/W2138824526","https://openalex.org/W2138924899","https://openalex.org/W2139548827","https://openalex.org/W2140847955","https://openalex.org/W2145492677","https://openalex.org/W2146819041","https://openalex.org/W2148883962","https://openalex.org/W2150020858","https://openalex.org/W2151948222","https://openalex.org/W2157303785","https://openalex.org/W2166873702","https://openalex.org/W3112152508","https://openalex.org/W3143835353","https://openalex.org/W3151647019"],"related_works":["https://openalex.org/W1996543123","https://openalex.org/W4388516297","https://openalex.org/W2548963335","https://openalex.org/W4389302182","https://openalex.org/W2010761432","https://openalex.org/W2159941915","https://openalex.org/W3118536199","https://openalex.org/W3168365631","https://openalex.org/W3016860855","https://openalex.org/W2601693592"],"abstract_inverted_index":{"We":[0,72],"address":[1],"the":[2,25,43,49,55,79,89,103,112,116,148,159],"problem":[3],"of":[4,78,137],"superimposed":[5,44,104],"trainings-":[6],"(STs-)":[7],"based":[8],"linearly":[9],"time-varying":[10],"(LTV)":[11],"channel":[12,30,51,80,90],"estimation":[13,81,91],"and":[14,125],"symbol":[15,97,130],"detection":[16],"for":[17,68,88,161],"orthogonal":[18],"frequency-division":[19,138,144],"multiplexing":[20],"access":[21],"(OFDMA)":[22],"systems":[23],"at":[24],"uplink":[26],"receiver.":[27],"The":[28],"LTV":[29,50],"coefficients":[31],"are":[32],"modeled":[33],"by":[34,59],"truncated":[35],"discrete":[36],"Fourier":[37],"bases":[38],"(DFBs).":[39],"By":[40,111],"judiciously":[41],"designing":[42],"pilot":[45],"symbols,":[46],"we":[47],"estimate":[48],"transfer":[52],"functions":[53],"over":[54],"whole":[56],"frequency":[57],"band":[58],"using":[60],"a":[61,75,85,119,127],"weighted":[62],"average":[63],"procedure,":[64,115],"thereby":[65],"providing":[66],"validity":[67],"adaptive":[69,163],"resource":[70,164],"allocation.":[71,165],"also":[73],"present":[74],"performance":[76,134],"analysis":[77],"approach":[82],"to":[83,101,142],"derive":[84],"closed-form":[86],"expression":[87],"variances.":[92],"In":[93],"addition,":[94],"an":[95],"iterative":[96,113],"detector":[98],"is":[99],"presented":[100],"mitigate":[102],"training":[105,146],"effects":[106],"on":[107],"information":[108],"sequence":[109],"recovery.":[110],"mitigation":[114],"demodulator":[117],"achieves":[118],"considerable":[120],"gain":[121],"in":[122],"signal-interference":[123],"ratio":[124],"exhibits":[126],"nearly":[128],"indistinguishable":[129],"error":[131],"rate":[132],"(SER)":[133],"from":[135],"that":[136],"multiplexed":[139,145],"trainings.":[140],"Compared":[141],"existing":[143],"schemes,":[147],"proposed":[149],"algorithm":[150],"does":[151],"not":[152],"entail":[153],"any":[154],"additional":[155],"bandwidth":[156],"while":[157],"with":[158],"advantage":[160],"system":[162]},"counts_by_year":[{"year":2018,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}