{"id":"https://openalex.org/W2537817031","doi":"https://doi.org/10.1109/icawst.2011.6163179","title":"Cognitive radio systems: Overview and challenges","display_name":"Cognitive radio systems: Overview and challenges","publication_year":2011,"publication_date":"2011-09-01","ids":{"openalex":"https://openalex.org/W2537817031","doi":"https://doi.org/10.1109/icawst.2011.6163179","mag":"2537817031"},"language":"en","primary_location":{"id":"doi:10.1109/icawst.2011.6163179","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icawst.2011.6163179","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 3rd International Conference on Awareness Science and Technology (iCAST)","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/A5101833923","display_name":"Van Tam Nguyen","orcid":"https://orcid.org/0000-0001-9111-4393"},"institutions":[{"id":"https://openalex.org/I4210165912","display_name":"Laboratoire Traitement et Communication de l\u2019Information","ror":"https://ror.org/057er4c39","country_code":"FR","type":"facility","lineage":["https://openalex.org/I12356871","https://openalex.org/I205703379","https://openalex.org/I4210145102","https://openalex.org/I4210165912"]},{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I12356871","display_name":"T\u00e9l\u00e9com Paris","ror":"https://ror.org/01naq7912","country_code":"FR","type":"education","lineage":["https://openalex.org/I12356871","https://openalex.org/I205703379","https://openalex.org/I4210145102"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"Van Tam Nguyen","raw_affiliation_strings":["Institut TELECOM, LTCI CNRS UMR 5141, TELECOM Paris Technology, Paris, France"],"affiliations":[{"raw_affiliation_string":"Institut TELECOM, LTCI CNRS UMR 5141, TELECOM Paris Technology, Paris, France","institution_ids":["https://openalex.org/I12356871","https://openalex.org/I4210165912","https://openalex.org/I1294671590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024574838","display_name":"F. Villain","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Frederic Villain","raw_affiliation_strings":["NXP, BL TV Front End, CAEN SpA, France"],"affiliations":[{"raw_affiliation_string":"NXP, BL TV Front End, CAEN SpA, France","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004526063","display_name":"Yann Le Guillou","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yann Le Guillou","raw_affiliation_strings":["Renesas Mobile Corporation, Rennes, France"],"affiliations":[{"raw_affiliation_string":"Renesas Mobile Corporation, Rennes, France","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5101833923"],"corresponding_institution_ids":["https://openalex.org/I12356871","https://openalex.org/I1294671590","https://openalex.org/I4210165912"],"apc_list":null,"apc_paid":null,"fwci":0.7002,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.75791664,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"497","last_page":"502"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":1.0,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.998199999332428,"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/T12146","display_name":"Power Line Communications and Noise","score":0.9973000288009644,"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/cognitive-radio","display_name":"Cognitive radio","score":0.8445900678634644},{"id":"https://openalex.org/keywords/standardization","display_name":"Standardization","score":0.7575122117996216},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5921213030815125},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.5659395456314087},{"id":"https://openalex.org/keywords/cognition","display_name":"Cognition","score":0.5328144431114197},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.44783830642700195},{"id":"https://openalex.org/keywords/cognitive-network","display_name":"Cognitive network","score":0.4167097210884094},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3597836196422577},{"id":"https://openalex.org/keywords/risk-analysis","display_name":"Risk analysis (engineering)","score":0.3496537506580353},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.19428661465644836},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.16352057456970215},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.11095085740089417},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.09948870539665222}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.8445900678634644},{"id":"https://openalex.org/C188087704","wikidata":"https://www.wikidata.org/wiki/Q369577","display_name":"Standardization","level":2,"score":0.7575122117996216},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5921213030815125},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.5659395456314087},{"id":"https://openalex.org/C169900460","wikidata":"https://www.wikidata.org/wiki/Q2200417","display_name":"Cognition","level":2,"score":0.5328144431114197},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.44783830642700195},{"id":"https://openalex.org/C32542511","wikidata":"https://www.wikidata.org/wiki/Q5141225","display_name":"Cognitive network","level":4,"score":0.4167097210884094},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3597836196422577},{"id":"https://openalex.org/C112930515","wikidata":"https://www.wikidata.org/wiki/Q4389547","display_name":"Risk analysis (engineering)","level":1,"score":0.3496537506580353},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.19428661465644836},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.16352057456970215},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.11095085740089417},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.09948870539665222},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icawst.2011.6163179","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icawst.2011.6163179","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 3rd International Conference on Awareness Science and Technology (iCAST)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5199999809265137,"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W1971614180","https://openalex.org/W1972216431","https://openalex.org/W1986170891","https://openalex.org/W2001456908","https://openalex.org/W2047747071","https://openalex.org/W2071707134","https://openalex.org/W2080515842","https://openalex.org/W2084206828","https://openalex.org/W2087010081","https://openalex.org/W2095809886","https://openalex.org/W2099557875","https://openalex.org/W2104728238","https://openalex.org/W2106988140","https://openalex.org/W2109814130","https://openalex.org/W2110302314","https://openalex.org/W2112875661","https://openalex.org/W2118309477","https://openalex.org/W2119021862","https://openalex.org/W2120080222","https://openalex.org/W2129463322","https://openalex.org/W2135600500","https://openalex.org/W2141248142","https://openalex.org/W2142243418","https://openalex.org/W2146167262","https://openalex.org/W2150397642","https://openalex.org/W2151045912","https://openalex.org/W2156860647","https://openalex.org/W2168078104","https://openalex.org/W2168859474","https://openalex.org/W2172139273","https://openalex.org/W2738369848","https://openalex.org/W6741396673"],"related_works":["https://openalex.org/W2277261328","https://openalex.org/W2167656028","https://openalex.org/W2610471112","https://openalex.org/W2340059876","https://openalex.org/W2900218722","https://openalex.org/W2800372944","https://openalex.org/W2010464513","https://openalex.org/W2732016385","https://openalex.org/W2915536052","https://openalex.org/W2268952256"],"abstract_inverted_index":{"Cognitive":[0],"radio":[1,40],"system":[2],"(CRS)":[3],"is":[4,57],"a":[5],"disruptive":[6],"technology":[7],"targeting":[8],"very":[9],"high":[10],"spectral":[11],"efficiency.":[12],"This":[13],"paper":[14],"presents":[15],"an":[16],"overview":[17],"of":[18,38,55],"CRS":[19,56],"and":[20,25,41,63],"summarizes":[21],"the":[22,50,53,61],"related":[23],"regulation":[24],"standardization":[26],"status.":[27],"We":[28],"point":[29],"out":[30],"some":[31],"key":[32],"research":[33,43],"challenges,":[34,49],"especially":[35],"implementation":[36],"challenges":[37],"cognitive":[39],"deduce":[42],"directions":[44],"in":[45],"CRS.":[46],"Despite":[47],"numerous":[48],"timeframe":[51],"for":[52],"success":[54],"more":[58],"linked":[59],"to":[60],"economical":[62],"business":[64],"model":[65],"than":[66],"real":[67],"technological":[68],"issues.":[69]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}