{"id":"https://openalex.org/W2054783961","doi":"https://doi.org/10.1109/iwcmc.2012.6314231","title":"Spectrum availability model of secondary users in cognitive radio networks","display_name":"Spectrum availability model of secondary users in cognitive radio networks","publication_year":2012,"publication_date":"2012-08-01","ids":{"openalex":"https://openalex.org/W2054783961","doi":"https://doi.org/10.1109/iwcmc.2012.6314231","mag":"2054783961"},"language":"en","primary_location":{"id":"doi:10.1109/iwcmc.2012.6314231","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwcmc.2012.6314231","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 8th International Wireless Communications and Mobile Computing Conference (IWCMC)","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/A5058757742","display_name":"Nariman Rahimian","orcid":null},"institutions":[{"id":"https://openalex.org/I91045830","display_name":"Texas A&M University","ror":"https://ror.org/01f5ytq51","country_code":"US","type":"education","lineage":["https://openalex.org/I91045830"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Nariman Rahimian","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Texas A and M University, College Station, TX, USA","Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, USA, 77840"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Texas A and M University, College Station, TX, USA","institution_ids":["https://openalex.org/I91045830"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, USA, 77840","institution_ids":["https://openalex.org/I91045830"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007060246","display_name":"C.N. Georghiades","orcid":"https://orcid.org/0000-0001-8333-1638"},"institutions":[{"id":"https://openalex.org/I91045830","display_name":"Texas A&M University","ror":"https://ror.org/01f5ytq51","country_code":"US","type":"education","lineage":["https://openalex.org/I91045830"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Costas N. Georghiades","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Texas A and M University, College Station, TX, USA","Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, USA, 77840"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Texas A and M University, College Station, TX, USA","institution_ids":["https://openalex.org/I91045830"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, USA, 77840","institution_ids":["https://openalex.org/I91045830"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109222638","display_name":"Hasari \u00c7elebi","orcid":null},"institutions":[{"id":"https://openalex.org/I109297418","display_name":"Gebze Technical University","ror":"https://ror.org/01sdnnq10","country_code":"TR","type":"education","lineage":["https://openalex.org/I109297418"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Hasari Celebi","raw_affiliation_strings":["Computer Engineering Department, Gebze Institute of Technology (GYTE), Gebze, Kocaeli, Turkey","Computer Engineering Dept, Gebze Institute of Technology, Istanbul Cad. No: 101 Gebze, Kocaeli, Turkey 41400"],"affiliations":[{"raw_affiliation_string":"Computer Engineering Department, Gebze Institute of Technology (GYTE), Gebze, Kocaeli, Turkey","institution_ids":["https://openalex.org/I109297418"]},{"raw_affiliation_string":"Computer Engineering Dept, Gebze Institute of Technology, Istanbul Cad. No: 101 Gebze, Kocaeli, Turkey 41400","institution_ids":["https://openalex.org/I109297418"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009224411","display_name":"Khalid Qaraqe","orcid":"https://orcid.org/0000-0002-0766-9212"},"institutions":[{"id":"https://openalex.org/I58152225","display_name":"Texas A&M University at Qatar","ror":"https://ror.org/03vb4dm14","country_code":"QA","type":"education","lineage":["https://openalex.org/I58152225","https://openalex.org/I91045830"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Khalid A. Qaraqe","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Texas A and M University, Qatar, Doha, Qatar","Department of Electrical and Computer Engineering, Texas A&M University at Qatar, Doha, Qatar"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Texas A and M University, Qatar, Doha, Qatar","institution_ids":["https://openalex.org/I58152225"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Texas A&M University at Qatar, Doha, Qatar","institution_ids":["https://openalex.org/I58152225"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5058757742"],"corresponding_institution_ids":["https://openalex.org/I91045830"],"apc_list":null,"apc_paid":null,"fwci":0.7451,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.74116542,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"360","last_page":"365"},"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":0.9998999834060669,"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":0.9998999834060669,"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":0.9980000257492065,"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":0.9976000189781189,"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":0.946197509765625},{"id":"https://openalex.org/keywords/spectrum","display_name":"Spectrum (functional analysis)","score":0.6521797180175781},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6463810801506042},{"id":"https://openalex.org/keywords/spectrum-management","display_name":"Spectrum management","score":0.6460363864898682},{"id":"https://openalex.org/keywords/fraction","display_name":"Fraction (chemistry)","score":0.6233865022659302},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.5488279461860657},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.4341318607330322},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.37572014331817627},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.2599788308143616},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07934004068374634}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.946197509765625},{"id":"https://openalex.org/C156778621","wikidata":"https://www.wikidata.org/wiki/Q1365748","display_name":"Spectrum (functional analysis)","level":2,"score":0.6521797180175781},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6463810801506042},{"id":"https://openalex.org/C63029442","wikidata":"https://www.wikidata.org/wiki/Q6504978","display_name":"Spectrum management","level":4,"score":0.6460363864898682},{"id":"https://openalex.org/C149629883","wikidata":"https://www.wikidata.org/wiki/Q660926","display_name":"Fraction (chemistry)","level":2,"score":0.6233865022659302},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5488279461860657},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.4341318607330322},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.37572014331817627},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2599788308143616},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07934004068374634},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/iwcmc.2012.6314231","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwcmc.2012.6314231","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 8th International Wireless Communications and Mobile Computing Conference (IWCMC)","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.718.4699","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.718.4699","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://people.qatar.tamu.edu/khalid.qaraqe/kqperso/Spectrum_Availability_Model_of_Secondary_Users.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1595409123","https://openalex.org/W1965842222","https://openalex.org/W1972835433","https://openalex.org/W1992901836","https://openalex.org/W2022894179","https://openalex.org/W2097850361","https://openalex.org/W2133970627","https://openalex.org/W2139493089","https://openalex.org/W2141488245","https://openalex.org/W2142764821","https://openalex.org/W2145560493","https://openalex.org/W2147023493","https://openalex.org/W2154787012","https://openalex.org/W2161434110","https://openalex.org/W2899702797","https://openalex.org/W6682648716"],"related_works":["https://openalex.org/W2786459840","https://openalex.org/W2545213287","https://openalex.org/W2336181987","https://openalex.org/W2054719951","https://openalex.org/W4389477274","https://openalex.org/W3089664461","https://openalex.org/W2775301649","https://openalex.org/W1976405282","https://openalex.org/W2541724026","https://openalex.org/W2048427509"],"abstract_inverted_index":{"Cognitive":[0],"Radio":[1],"systems":[2],"are":[3],"a":[4,97],"promising":[5],"solution":[6],"to":[7,20],"the":[8,21,34,40,46,63,76,79,83,108,112],"spectrum":[9,16,85,109],"scarcity":[10],"problem,":[11],"but":[12],"precise":[13],"modeling":[14],"of":[15,25,39,42,62,66,78],"utilization":[17],"is":[18,73,90,93,100],"vital":[19],"analysis":[22],"and":[23,75],"design":[24],"such":[26],"systems.":[27],"In":[28],"this":[29],"paper,":[30],"we":[31],"mathematically":[32],"derive":[33],"Probability":[35],"Mass":[36],"Function":[37],"(PMF)":[38],"fraction":[41],"available":[43],"subcarriers":[44,68,104],"for":[45,56,87,111],"secondary":[47,88,113],"users":[48,72,89],"in":[49],"an":[50],"OFDMA":[51],"based":[52],"cognitive":[53],"radio":[54],"system":[55],"different":[57],"requesting":[58,80,98],"distributions.":[59],"The":[60],"PMF":[61],"total":[64],"number":[65],"requested":[67],"from":[69],"all":[70],"primary":[71],"derived":[74],"effect":[77],"distribution":[81,99],"on":[82],"asymptotic":[84],"availability":[86,110],"studied.":[91],"It":[92],"shown":[94],"that":[95],"if":[96],"undesired,":[101],"providing":[102],"more":[103],"will":[105],"not":[106],"increase":[107],"network.":[114]},"counts_by_year":[{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}