{"id":"https://openalex.org/W1991308413","doi":"https://doi.org/10.1109/tvt.2013.2285389","title":"Iterative Synchronization-Assisted Detection of OFDM Signals in Cognitive Radio Systems","display_name":"Iterative Synchronization-Assisted Detection of OFDM Signals in Cognitive Radio Systems","publication_year":2013,"publication_date":"2013-10-11","ids":{"openalex":"https://openalex.org/W1991308413","doi":"https://doi.org/10.1109/tvt.2013.2285389","mag":"1991308413"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2013.2285389","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2013.2285389","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","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/A5067774888","display_name":"Wen\u2010Long Chin","orcid":"https://orcid.org/0000-0002-5914-6253"},"institutions":[{"id":"https://openalex.org/I91807558","display_name":"National Cheng Kung University","ror":"https://ror.org/01b8kcc49","country_code":"TW","type":"education","lineage":["https://openalex.org/I91807558"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Wen-Long Chin","raw_affiliation_strings":["Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]},{"raw_affiliation_string":"Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113721224","display_name":"Chun-Wei Kao","orcid":null},"institutions":[{"id":"https://openalex.org/I91807558","display_name":"National Cheng Kung University","ror":"https://ror.org/01b8kcc49","country_code":"TW","type":"education","lineage":["https://openalex.org/I91807558"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Chun-Wei Kao","raw_affiliation_strings":["Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]},{"raw_affiliation_string":"Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084739355","display_name":"Hsiao\u2010Hwa Chen","orcid":"https://orcid.org/0000-0001-8473-0729"},"institutions":[{"id":"https://openalex.org/I91807558","display_name":"National Cheng Kung University","ror":"https://ror.org/01b8kcc49","country_code":"TW","type":"education","lineage":["https://openalex.org/I91807558"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Hsiao-Hwa Chen","raw_affiliation_strings":["Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]},{"raw_affiliation_string":"Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5001944455","display_name":"Teh\u2010Lu Liao","orcid":"https://orcid.org/0000-0002-0194-7824"},"institutions":[{"id":"https://openalex.org/I91807558","display_name":"National Cheng Kung University","ror":"https://ror.org/01b8kcc49","country_code":"TW","type":"education","lineage":["https://openalex.org/I91807558"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Teh-Lu Liao","raw_affiliation_strings":["Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]},{"raw_affiliation_string":"Dept. of Engineering Science, National Cheng-Kung University, Tainan, Taiwan","institution_ids":["https://openalex.org/I91807558"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.9203,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.86835745,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"63","issue":"4","first_page":"1633","last_page":"1644"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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"}},"topics":[{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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"}},{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9993000030517578,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9977999925613403,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.8583359718322754},{"id":"https://openalex.org/keywords/cyclic-prefix","display_name":"Cyclic prefix","score":0.8337780237197876},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.6574621796607971},{"id":"https://openalex.org/keywords/carrier-frequency-offset","display_name":"Carrier frequency offset","score":0.6494049429893494},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.6407293677330017},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.638076901435852},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.563123881816864},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5565756559371948},{"id":"https://openalex.org/keywords/synchronization","display_name":"Synchronization (alternating current)","score":0.5327947735786438},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4908071458339691},{"id":"https://openalex.org/keywords/frequency-offset","display_name":"Frequency offset","score":0.46805471181869507},{"id":"https://openalex.org/keywords/detection-theory","display_name":"Detection theory","score":0.46512293815612793},{"id":"https://openalex.org/keywords/likelihood-ratio-test","display_name":"Likelihood-ratio test","score":0.4326525032520294},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.4228478968143463},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.3750718832015991},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.3720245063304901},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.34702521562576294},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2692837715148926},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24010145664215088},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.21666228771209717},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.19043952226638794},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.16936266422271729},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.10960361361503601}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.8583359718322754},{"id":"https://openalex.org/C2778775284","wikidata":"https://www.wikidata.org/wiki/Q5198224","display_name":"Cyclic prefix","level":4,"score":0.8337780237197876},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.6574621796607971},{"id":"https://openalex.org/C2776108382","wikidata":"https://www.wikidata.org/wiki/Q25111451","display_name":"Carrier frequency offset","level":5,"score":0.6494049429893494},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.6407293677330017},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.638076901435852},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.563123881816864},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5565756559371948},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.5327947735786438},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4908071458339691},{"id":"https://openalex.org/C49319798","wikidata":"https://www.wikidata.org/wiki/Q5502874","display_name":"Frequency offset","level":4,"score":0.46805471181869507},{"id":"https://openalex.org/C137270730","wikidata":"https://www.wikidata.org/wiki/Q120811","display_name":"Detection theory","level":3,"score":0.46512293815612793},{"id":"https://openalex.org/C9483764","wikidata":"https://www.wikidata.org/wiki/Q585740","display_name":"Likelihood-ratio test","level":2,"score":0.4326525032520294},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.4228478968143463},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.3750718832015991},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3720245063304901},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.34702521562576294},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2692837715148926},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24010145664215088},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.21666228771209717},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.19043952226638794},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.16936266422271729},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.10960361361503601}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tvt.2013.2285389","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2013.2285389","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.46000000834465027}],"awards":[{"id":"https://openalex.org/G2255589727","display_name":null,"funder_award_id":"99-2221-E-006-016-MY3","funder_id":"https://openalex.org/F4320321040","funder_display_name":"National Science Council"},{"id":"https://openalex.org/G5789643666","display_name":null,"funder_award_id":"NSC 101-2221-E-006-190-MY2","funder_id":"https://openalex.org/F4320321040","funder_display_name":"National Science Council"},{"id":"https://openalex.org/G8072376924","display_name":null,"funder_award_id":"NSC 101-2221-E-006-186","funder_id":"https://openalex.org/F4320321040","funder_display_name":"National Science Council"}],"funders":[{"id":"https://openalex.org/F4320321040","display_name":"National Science Council","ror":"https://ror.org/02kv4zf79"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W2012864021","https://openalex.org/W2015169036","https://openalex.org/W2026390944","https://openalex.org/W2041664909","https://openalex.org/W2063698478","https://openalex.org/W2065715415","https://openalex.org/W2084074531","https://openalex.org/W2099616259","https://openalex.org/W2099796111","https://openalex.org/W2100233713","https://openalex.org/W2100459091","https://openalex.org/W2100814173","https://openalex.org/W2101840010","https://openalex.org/W2105870475","https://openalex.org/W2107146135","https://openalex.org/W2109369873","https://openalex.org/W2110774823","https://openalex.org/W2113749736","https://openalex.org/W2114395447","https://openalex.org/W2119857453","https://openalex.org/W2121752971","https://openalex.org/W2122752988","https://openalex.org/W2130569597","https://openalex.org/W2131250527","https://openalex.org/W2132726765","https://openalex.org/W2137985844","https://openalex.org/W2138093886","https://openalex.org/W2139566778","https://openalex.org/W2143261171","https://openalex.org/W2143981446","https://openalex.org/W2149359002","https://openalex.org/W2150633168","https://openalex.org/W2150767133","https://openalex.org/W2153885183","https://openalex.org/W2154391508","https://openalex.org/W2155411481","https://openalex.org/W2155999145","https://openalex.org/W2164153974","https://openalex.org/W2170524206","https://openalex.org/W2324309783","https://openalex.org/W2798909945","https://openalex.org/W6666776182","https://openalex.org/W6677855078","https://openalex.org/W6682982742","https://openalex.org/W6685185674"],"related_works":["https://openalex.org/W2124550134","https://openalex.org/W4386346320","https://openalex.org/W2185563286","https://openalex.org/W2342802180","https://openalex.org/W1537545565","https://openalex.org/W2787497515","https://openalex.org/W2133690425","https://openalex.org/W2163799874","https://openalex.org/W2795913985","https://openalex.org/W2378291829"],"abstract_inverted_index":{"Despite":[0],"many":[1],"attractive":[2],"features":[3],"of":[4,83,163],"an":[5,15,38,58],"orthogonal":[6],"frequency-division":[7],"multiplexing":[8],"(OFDM)":[9],"system,":[10],"the":[11,81,161,164],"signal":[12,42,106],"detection":[13,43],"in":[14,27,53],"OFDM":[16,41,59],"system":[17],"over":[18,50],"multipath":[19,51],"fading":[20],"channels":[21,52],"remains":[22],"a":[23,28,61,73,87,132,143,155],"challenging":[24],"issue,":[25],"particularly":[26],"relatively":[29,137],"low":[30,88],"signal-to-noise":[31],"ratio":[32,63],"(SNR)":[33],"scenario.":[34],"This":[35],"paper":[36],"presents":[37],"iterative":[39,148],"synchronization-assisted":[40],"scheme":[44,149],"for":[45,105],"cognitive":[46],"radio":[47],"(CR)":[48],"applications":[49],"low-SNR":[54],"regions.":[55],"To":[56],"detect":[57],"signal,":[60],"log-likelihood":[62,95],"(LLR)":[64],"test":[65],"is":[66,111,150],"employed":[67],"without":[68],"additional":[69],"pilot":[70],"symbols":[71],"using":[72],"cyclic":[74],"prefix":[75],"(CP).":[76],"Analytical":[77],"results":[78,159],"indicate":[79],"that":[80],"LLR":[82],"received":[84],"samples":[85],"at":[86],"SNR":[89],"can":[90],"be":[91],"approximated":[92],"by":[93],"their":[94],"(LL)":[96],"functions,":[97],"thus":[98],"allowing":[99],"us":[100],"to":[101,153],"estimate":[102],"synchronization":[103,133,156],"parameters":[104],"detection.":[107],"The":[108],"LL":[109],"function":[110],"complex":[112],"and":[113,128],"depends":[114],"on":[115],"various":[116],"parameters,":[117],"including":[118],"correlation":[119],"coefficient,":[120],"carrier":[121],"frequency":[122],"offset":[123],"(CFO),":[124],"symbol":[125],"timing":[126],"offset,":[127],"channel":[129],"length.":[130],"Decomposing":[131],"problem":[134],"into":[135],"several":[136],"simple":[138],"parameter":[139],"estimation":[140],"subproblems":[141],"eliminates":[142],"multidimensional":[144],"grid":[145],"search.":[146],"An":[147],"also":[151],"devised":[152],"implement":[154],"process.":[157],"Simulation":[158],"confirm":[160],"effectiveness":[162],"proposed":[165],"detector.":[166]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":2}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
