{"id":"https://openalex.org/W2124758998","doi":"https://doi.org/10.1109/icics.2011.6173530","title":"Spectrum sensing in cognitive radios: Design of DFT filter banks achieving maximal time-frequency resolution","display_name":"Spectrum sensing in cognitive radios: Design of DFT filter banks achieving maximal time-frequency resolution","publication_year":2011,"publication_date":"2011-12-01","ids":{"openalex":"https://openalex.org/W2124758998","doi":"https://doi.org/10.1109/icics.2011.6173530","mag":"2124758998"},"language":"en","primary_location":{"id":"doi:10.1109/icics.2011.6173530","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icics.2011.6173530","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 8th International Conference on Information, Communications & Signal Processing","raw_type":"proceedings-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/A5081979556","display_name":"Thomas Hunziker","orcid":null},"institutions":[{"id":"https://openalex.org/I106157433","display_name":"University of Kassel","ror":"https://ror.org/04zc7p361","country_code":"DE","type":"education","lineage":["https://openalex.org/I106157433"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"T. Hunziker","raw_affiliation_strings":["Communications Laboratory, University of Kassel, Kassel, Germany","Communications Laboratory, University of Kassel, Wilhelmsh\u00f6her Allee 73, Kassel, 34121, Germany"],"affiliations":[{"raw_affiliation_string":"Communications Laboratory, University of Kassel, Kassel, Germany","institution_ids":["https://openalex.org/I106157433"]},{"raw_affiliation_string":"Communications Laboratory, University of Kassel, Wilhelmsh\u00f6her Allee 73, Kassel, 34121, Germany","institution_ids":["https://openalex.org/I106157433"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015667504","display_name":"Ubaid Ur Rehman","orcid":"https://orcid.org/0000-0003-2155-8911"},"institutions":[{"id":"https://openalex.org/I106157433","display_name":"University of Kassel","ror":"https://ror.org/04zc7p361","country_code":"DE","type":"education","lineage":["https://openalex.org/I106157433"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"U. U. Rehman","raw_affiliation_strings":["Communications Laboratory, University of Kassel, Kassel, Germany","Communications Laboratory, University of Kassel, Wilhelmsh\u00f6her Allee 73, Kassel, 34121, Germany"],"affiliations":[{"raw_affiliation_string":"Communications Laboratory, University of Kassel, Kassel, Germany","institution_ids":["https://openalex.org/I106157433"]},{"raw_affiliation_string":"Communications Laboratory, University of Kassel, Wilhelmsh\u00f6her Allee 73, Kassel, 34121, Germany","institution_ids":["https://openalex.org/I106157433"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5065515904","display_name":"Dirk Dahlhaus","orcid":"https://orcid.org/0000-0003-2995-1670"},"institutions":[{"id":"https://openalex.org/I106157433","display_name":"University of Kassel","ror":"https://ror.org/04zc7p361","country_code":"DE","type":"education","lineage":["https://openalex.org/I106157433"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"D. Dahlhaus","raw_affiliation_strings":["Communications Laboratory, University of Kassel, Kassel, Germany","Communications Laboratory, University of Kassel, Wilhelmsh\u00f6her Allee 73, Kassel, 34121, Germany"],"affiliations":[{"raw_affiliation_string":"Communications Laboratory, University of Kassel, Kassel, Germany","institution_ids":["https://openalex.org/I106157433"]},{"raw_affiliation_string":"Communications Laboratory, University of Kassel, Wilhelmsh\u00f6her Allee 73, Kassel, 34121, Germany","institution_ids":["https://openalex.org/I106157433"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5081979556"],"corresponding_institution_ids":["https://openalex.org/I106157433"],"apc_list":null,"apc_paid":null,"fwci":1.0303,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.80593651,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"2569","issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10688","display_name":"Image and Signal Denoising Methods","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T12300","display_name":"Advanced Electrical Measurement Techniques","score":0.9962000250816345,"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/filter-bank","display_name":"Filter bank","score":0.8362923860549927},{"id":"https://openalex.org/keywords/multitaper","display_name":"Multitaper","score":0.7462150454521179},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6009503602981567},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.5990078449249268},{"id":"https://openalex.org/keywords/filter-design","display_name":"Filter design","score":0.59519362449646},{"id":"https://openalex.org/keywords/spectral-leakage","display_name":"Spectral leakage","score":0.5907824039459229},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.5610834956169128},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5375643968582153},{"id":"https://openalex.org/keywords/spectral-density","display_name":"Spectral density","score":0.4949464201927185},{"id":"https://openalex.org/keywords/discrete-fourier-transform","display_name":"Discrete Fourier transform (general)","score":0.45321908593177795},{"id":"https://openalex.org/keywords/time\u2013frequency-analysis","display_name":"Time\u2013frequency analysis","score":0.44621285796165466},{"id":"https://openalex.org/keywords/residual","display_name":"Residual","score":0.444664865732193},{"id":"https://openalex.org/keywords/spectral-density-estimation","display_name":"Spectral density estimation","score":0.4383791983127594},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3876686096191406},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3392345905303955},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.31477972865104675},{"id":"https://openalex.org/keywords/fourier-transform","display_name":"Fourier transform","score":0.2433508336544037},{"id":"https://openalex.org/keywords/fast-fourier-transform","display_name":"Fast Fourier transform","score":0.20385557413101196},{"id":"https://openalex.org/keywords/short-time-fourier-transform","display_name":"Short-time Fourier transform","score":0.16509011387825012},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.13748803734779358},{"id":"https://openalex.org/keywords/fourier-analysis","display_name":"Fourier analysis","score":0.11109098792076111}],"concepts":[{"id":"https://openalex.org/C100515483","wikidata":"https://www.wikidata.org/wiki/Q3268235","display_name":"Filter bank","level":3,"score":0.8362923860549927},{"id":"https://openalex.org/C2777067715","wikidata":"https://www.wikidata.org/wiki/Q3327726","display_name":"Multitaper","level":2,"score":0.7462150454521179},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6009503602981567},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.5990078449249268},{"id":"https://openalex.org/C22597639","wikidata":"https://www.wikidata.org/wiki/Q5449227","display_name":"Filter design","level":3,"score":0.59519362449646},{"id":"https://openalex.org/C113407356","wikidata":"https://www.wikidata.org/wiki/Q1431214","display_name":"Spectral leakage","level":3,"score":0.5907824039459229},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.5610834956169128},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5375643968582153},{"id":"https://openalex.org/C168110828","wikidata":"https://www.wikidata.org/wiki/Q1331626","display_name":"Spectral density","level":2,"score":0.4949464201927185},{"id":"https://openalex.org/C57733114","wikidata":"https://www.wikidata.org/wiki/Q1006032","display_name":"Discrete Fourier transform (general)","level":5,"score":0.45321908593177795},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.44621285796165466},{"id":"https://openalex.org/C155512373","wikidata":"https://www.wikidata.org/wiki/Q287450","display_name":"Residual","level":2,"score":0.444664865732193},{"id":"https://openalex.org/C30049272","wikidata":"https://www.wikidata.org/wiki/Q6555326","display_name":"Spectral density estimation","level":3,"score":0.4383791983127594},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3876686096191406},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3392345905303955},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.31477972865104675},{"id":"https://openalex.org/C102519508","wikidata":"https://www.wikidata.org/wiki/Q6520159","display_name":"Fourier transform","level":2,"score":0.2433508336544037},{"id":"https://openalex.org/C75172450","wikidata":"https://www.wikidata.org/wiki/Q623950","display_name":"Fast Fourier transform","level":2,"score":0.20385557413101196},{"id":"https://openalex.org/C166386157","wikidata":"https://www.wikidata.org/wiki/Q1477735","display_name":"Short-time Fourier transform","level":4,"score":0.16509011387825012},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.13748803734779358},{"id":"https://openalex.org/C203024314","wikidata":"https://www.wikidata.org/wiki/Q1365258","display_name":"Fourier analysis","level":3,"score":0.11109098792076111},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icics.2011.6173530","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icics.2011.6173530","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 8th International Conference on Information, Communications & Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.5600000023841858}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1481866092","https://openalex.org/W1528931216","https://openalex.org/W1598145127","https://openalex.org/W1978002132","https://openalex.org/W2011869890","https://openalex.org/W2036488048","https://openalex.org/W2036724129","https://openalex.org/W2046245205","https://openalex.org/W2110702117","https://openalex.org/W2154271954","https://openalex.org/W2155722796","https://openalex.org/W2160147848","https://openalex.org/W2161519096","https://openalex.org/W2296319761","https://openalex.org/W2414887269","https://openalex.org/W4250589301","https://openalex.org/W6635579031"],"related_works":["https://openalex.org/W2220576269","https://openalex.org/W2074287313","https://openalex.org/W2060047080","https://openalex.org/W2040780863","https://openalex.org/W4313130483","https://openalex.org/W2112361630","https://openalex.org/W4237299566","https://openalex.org/W2124758998","https://openalex.org/W1977474176","https://openalex.org/W2115365712"],"abstract_inverted_index":{"Filter":[0],"banks":[1,121,144,159],"facilitate":[2],"an":[3,14,35,107,129],"estimation":[4,36],"of":[5,10,37,47,87,94,138,141,155],"the":[6,25,38,61,91,95,100,152],"power":[7],"spectral":[8],"density":[9],"broad-band":[11],"non-stationary":[12],"signals,":[13],"operation":[15],"required":[16,126],"in":[17,56,79,85,128],"many":[18],"cognitive":[19],"radio":[20],"systems.":[21],"The":[22,132],"samples":[23,84],"at":[24],"filter":[26,70,120,143,158],"bank":[27,71],"output":[28],"may":[29],"serve":[30],"as":[31],"a":[32,53,65,115,139,162],"basis":[33],"for":[34],"input":[39,89],"signal":[40],"energy":[41],"within":[42],"any":[43],"time-frequency":[44],"(TF)":[45],"region":[46],"interest.":[48],"In":[49,110],"order":[50,80],"to":[51,73,81,105,117],"achieve":[52],"high":[54,75],"resolution":[55],"both":[57],"time":[58],"and":[59,145,160],"frequency,":[60],"prototype":[62,96],"window":[63,97],"underlying":[64],"Discrete":[66],"Fourier":[67],"Transform":[68],"(DFT)":[69],"needs":[72],"exhibit":[74],"TF":[76],"concentration.":[77],"Moreover,":[78],"provide":[82],"uncorrelated":[83],"case":[86],"white":[88],"processes,":[90],"TF-translated":[92],"versions":[93],"that":[98,122],"underlie":[99],"elementary":[101],"filtering":[102],"operations":[103],"need":[104],"constitute":[106],"orthogonal":[108],"set.":[109],"this":[111],"paper":[112],"we":[113],"present":[114],"technique":[116],"design":[118],"DFT":[119],"possess":[123],"these":[124],"two":[125],"properties":[127],"optimal":[130],"manner.":[131],"numerical":[133],"optimization":[134],"procedure":[135],"takes":[136],"advantage":[137],"parametrization":[140],"paraunitary":[142],"relies":[146],"on":[147],"semidefinite":[148],"programming.":[149],"We":[150],"analyze":[151],"residual":[153],"leakage":[154],"our":[156],"optimized":[157],"draw":[161],"comparison":[163],"against":[164],"Thomson's":[165],"multitaper":[166],"method.":[167]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}