{"id":"https://openalex.org/W2154487662","doi":"https://doi.org/10.1145/2801948.2801973","title":"Cognitive channel selection for opportunistic spectrum access","display_name":"Cognitive channel selection for opportunistic spectrum access","publication_year":2015,"publication_date":"2015-09-22","ids":{"openalex":"https://openalex.org/W2154487662","doi":"https://doi.org/10.1145/2801948.2801973","mag":"2154487662"},"language":"en","primary_location":{"id":"doi:10.1145/2801948.2801973","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2801948.2801973","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 19th Panhellenic Conference on Informatics","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/A5029820693","display_name":"Angeliki V. Kordali","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Angeliki Kordali","raw_affiliation_strings":["National Technical University of Athens, Greece"],"affiliations":[{"raw_affiliation_string":"National Technical University of Athens, Greece","institution_ids":["https://openalex.org/I174458059"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111986518","display_name":"Panayotis G. Cottis","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Panayotis G. Cottis","raw_affiliation_strings":["National Technical University of Athens, Greece"],"affiliations":[{"raw_affiliation_string":"National Technical University of Athens, Greece","institution_ids":["https://openalex.org/I174458059"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5029820693"],"corresponding_institution_ids":["https://openalex.org/I174458059"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.09339743,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"261","last_page":"266"},"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9922999739646912,"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":0.9817000031471252,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.8802350759506226},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7832465171813965},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6610539555549622},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6292901635169983},{"id":"https://openalex.org/keywords/reinforcement-learning","display_name":"Reinforcement learning","score":0.5525599718093872},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5169247984886169},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.48367294669151306},{"id":"https://openalex.org/keywords/spectrum-management","display_name":"Spectrum management","score":0.41648954153060913},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.41019758582115173},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.23861238360404968},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.2356392741203308},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1866997480392456}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.8802350759506226},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7832465171813965},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6610539555549622},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6292901635169983},{"id":"https://openalex.org/C97541855","wikidata":"https://www.wikidata.org/wiki/Q830687","display_name":"Reinforcement learning","level":2,"score":0.5525599718093872},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5169247984886169},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.48367294669151306},{"id":"https://openalex.org/C63029442","wikidata":"https://www.wikidata.org/wiki/Q6504978","display_name":"Spectrum management","level":4,"score":0.41648954153060913},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.41019758582115173},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.23861238360404968},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2356392741203308},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1866997480392456},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2801948.2801973","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2801948.2801973","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 19th Panhellenic Conference on Informatics","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321038","display_name":"Fonds National de la Recherche Luxembourg","ror":"https://ror.org/039z13y21"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W32403112","https://openalex.org/W1976501316","https://openalex.org/W1980977161","https://openalex.org/W2019698800","https://openalex.org/W2057677529","https://openalex.org/W2101840010","https://openalex.org/W2115400030","https://openalex.org/W2115772690","https://openalex.org/W2135368995","https://openalex.org/W2136302425","https://openalex.org/W2144369278","https://openalex.org/W2162677599","https://openalex.org/W2166023188","https://openalex.org/W2168078104","https://openalex.org/W2911283634","https://openalex.org/W2914656440","https://openalex.org/W4214717370"],"related_works":["https://openalex.org/W2786459840","https://openalex.org/W2545213287","https://openalex.org/W2336181987","https://openalex.org/W2054719951","https://openalex.org/W3089664461","https://openalex.org/W4389477274","https://openalex.org/W1976405282","https://openalex.org/W2541724026","https://openalex.org/W1157983132","https://openalex.org/W2392764151"],"abstract_inverted_index":{"Cognitive":[0],"Radio":[1],"has":[2],"been":[3],"proposed":[4,127,195],"to":[5,32,51,131,147],"address":[6],"the":[7,83,91,95,108,141,164,169,173,176,194,200,203],"problem":[8],"of":[9,158,172,182],"spectrum":[10,20],"scarcity":[11],"by":[12,103,136],"exploiting":[13],"under-utilized":[14],"frequency":[15],"bands":[16],"(FBs).":[17],"With":[18],"opportunistic":[19],"access,":[21],"cognitive":[22,38],"secondary":[23],"users":[24,106],"(SUs)":[25],"may":[26,64],"access":[27],"vacant":[28],"FBs":[29,143,159,201],"originally":[30],"assigned":[31],"Primary":[33],"Users":[34],"(PUs).":[35],"Considering":[36],"autonomous":[37],"radio":[39],"networks,":[40],"where":[41],"no":[42],"central":[43],"entity":[44],"can":[45],"share":[46],"environment":[47,189],"information,":[48],"SUs":[49,130,214],"have":[50],"operate":[52],"as":[53,69,76,107],"independent":[54],"agents.":[55],"Such":[56],"agents":[57],"are":[58,101,178],"confronted":[59],"with":[60,123,215],"PU":[61],"traffic":[62,84],"which":[63],"follow":[65],"either":[66],"deterministic":[67],"patterns,":[68,75],"in":[70,77,88,94,145,187,198,202,207],"TV":[71],"transmission,":[72],"or":[73,79],"stochastic":[74,85],"packet-switched":[78],"circuit-switched":[80],"networks.":[81],"However,":[82],"patterns":[86],"cannot,":[87],"general,":[89],"reflect":[90],"dynamic":[92,211],"changes":[93],"FBs,":[96],"especially":[97],"when":[98],"these":[99],"channels":[100],"accessed":[102],"not":[104],"registered":[105],"SUs.":[109],"Addressing":[110],"this":[111],"issue,":[112],"a":[113],"novel":[114],"reinforcement-learning":[115],"(R-L)":[116],"scheme":[117,128,196],"is":[118,160,185],"proposed,":[119],"based":[120,161],"on":[121,162],"Q-learning":[122],"two":[124],"alternatives.":[125],"The":[126,156,180],"enables":[129],"use":[132],"information":[133],"acquired":[134],"solely":[135],"own":[137],"sensing":[138,154,205],"and":[139,153,167,210,217],"evaluate":[140],"available":[142],"accordingly":[144],"order":[146,206],"set":[148],"an":[149],"optimal":[150,204],"channel":[151,219],"selection":[152],"order.":[155],"evaluation":[157],"(i)":[163],"occupancy":[165],"probability":[166],"(ii)":[168],"mean":[170],"duration":[171],"time":[174],"that":[175,193],"PUs":[177],"idle.":[179],"effectiveness":[181],"both":[183,208],"alternatives":[184],"examined":[186],"different":[188],"characteristics.":[190],"Simulations":[191],"show":[192],"succeeds":[197],"setting":[199],"static":[209],"cases":[212],"providing":[213],"self-awareness":[216],"efficient":[218],"utilization.":[220]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
