{"id":"https://openalex.org/W1984540214","doi":"https://doi.org/10.1109/dictap.2014.6821658","title":"Experimental threshold determination for secondary users using USRP and Gnu radio","display_name":"Experimental threshold determination for secondary users using USRP and Gnu radio","publication_year":2014,"publication_date":"2014-05-01","ids":{"openalex":"https://openalex.org/W1984540214","doi":"https://doi.org/10.1109/dictap.2014.6821658","mag":"1984540214"},"language":"en","primary_location":{"id":"doi:10.1109/dictap.2014.6821658","is_oa":false,"landing_page_url":"https://doi.org/10.1109/dictap.2014.6821658","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 Fourth International Conference on Digital Information and Communication Technology and its Applications (DICTAP)","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/A5003290346","display_name":"Amith Khandakar","orcid":"https://orcid.org/0000-0001-7068-9112"},"institutions":[{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["QA"],"is_corresponding":true,"raw_author_name":"Amith Khandakar","raw_affiliation_strings":["Qatar University","Qatar University,"],"affiliations":[{"raw_affiliation_string":"Qatar University","institution_ids":["https://openalex.org/I60342839"]},{"raw_affiliation_string":"Qatar University,","institution_ids":["https://openalex.org/I60342839"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112881459","display_name":"Amr Mohammed","orcid":null},"institutions":[{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Amr Mohammed","raw_affiliation_strings":["Qatar University","Qatar University,"],"affiliations":[{"raw_affiliation_string":"Qatar University","institution_ids":["https://openalex.org/I60342839"]},{"raw_affiliation_string":"Qatar University,","institution_ids":["https://openalex.org/I60342839"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002223165","display_name":"Amr A. El-Sherif","orcid":"https://orcid.org/0000-0003-2493-6228"},"institutions":[{"id":"https://openalex.org/I60342839","display_name":"Qatar University","ror":"https://ror.org/00yhnba62","country_code":"QA","type":"education","lineage":["https://openalex.org/I60342839"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Amr El Sherif","raw_affiliation_strings":["Qatar University","Qatar University,"],"affiliations":[{"raw_affiliation_string":"Qatar University","institution_ids":["https://openalex.org/I60342839"]},{"raw_affiliation_string":"Qatar University,","institution_ids":["https://openalex.org/I60342839"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5003290346"],"corresponding_institution_ids":["https://openalex.org/I60342839"],"apc_list":null,"apc_paid":null,"fwci":0.7195,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.73960647,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"62","last_page":"68"},"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/T12146","display_name":"Power Line Communications and Noise","score":0.9936000108718872,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.991100013256073,"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/cognitive-radio","display_name":"Cognitive radio","score":0.948591947555542},{"id":"https://openalex.org/keywords/universal-software-radio-peripheral","display_name":"Universal Software Radio Peripheral","score":0.8742467761039734},{"id":"https://openalex.org/keywords/white-spaces","display_name":"White spaces","score":0.737188458442688},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7309768199920654},{"id":"https://openalex.org/keywords/software-defined-radio","display_name":"Software-defined radio","score":0.6022886633872986},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.4775041937828064},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.46914759278297424},{"id":"https://openalex.org/keywords/radio-spectrum","display_name":"Radio spectrum","score":0.4641987085342407},{"id":"https://openalex.org/keywords/lookup-table","display_name":"Lookup table","score":0.4567405581474304},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21478310227394104},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.07576489448547363}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.948591947555542},{"id":"https://openalex.org/C192220659","wikidata":"https://www.wikidata.org/wiki/Q1245659","display_name":"Universal Software Radio Peripheral","level":3,"score":0.8742467761039734},{"id":"https://openalex.org/C96391052","wikidata":"https://www.wikidata.org/wiki/Q256313","display_name":"White spaces","level":4,"score":0.737188458442688},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7309768199920654},{"id":"https://openalex.org/C171115542","wikidata":"https://www.wikidata.org/wiki/Q1331892","display_name":"Software-defined radio","level":2,"score":0.6022886633872986},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.4775041937828064},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.46914759278297424},{"id":"https://openalex.org/C92545706","wikidata":"https://www.wikidata.org/wiki/Q902174","display_name":"Radio spectrum","level":2,"score":0.4641987085342407},{"id":"https://openalex.org/C134835016","wikidata":"https://www.wikidata.org/wiki/Q690265","display_name":"Lookup table","level":2,"score":0.4567405581474304},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21478310227394104},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07576489448547363},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"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:10.1109/dictap.2014.6821658","is_oa":false,"landing_page_url":"https://doi.org/10.1109/dictap.2014.6821658","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 Fourth International Conference on Digital Information and Communication Technology and its Applications (DICTAP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8999999761581421,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1557517019","https://openalex.org/W1994734174","https://openalex.org/W2047216776","https://openalex.org/W2061992737","https://openalex.org/W2106673869","https://openalex.org/W2135512801","https://openalex.org/W2540432762","https://openalex.org/W2541724026","https://openalex.org/W4238591469","https://openalex.org/W6662410912"],"related_works":["https://openalex.org/W4251089492","https://openalex.org/W2993899695","https://openalex.org/W2886621694","https://openalex.org/W2540432762","https://openalex.org/W2127011572","https://openalex.org/W1622326982","https://openalex.org/W2354005007","https://openalex.org/W4231102563","https://openalex.org/W2162075876","https://openalex.org/W2545213287"],"abstract_inverted_index":{"Cognitive":[0],"radio":[1,20,75,238],"(CR)":[2],"is":[3,21,44,76,91,116,125,155,172,187],"an":[4,140],"upcoming":[5],"technology":[6],"that":[7],"provides":[8],"viable":[9],"solution":[10],"for":[11,56,97,144,239],"congested":[12],"wireless":[13],"spectrum.":[14,87],"The":[15,40,60,100,114,152,184,211],"basic":[16],"idea":[17],"behind":[18],"cognitive":[19,74,237],"the":[22,79,94,108,112,167,179,182,198,202,206,209,215,227,236],"utilization":[23],"of":[24,28,62,81,93,102,181,197,208,217,223,229],"unused":[25,41],"frequency":[26],"bands":[27],"primary":[29,82,127],"or":[30,36,48],"licensed":[31,42,86],"users":[32,38,83,120],"(PU)":[33],"by":[34,111,118,139,189,235],"secondary":[35,192],"unlicensed":[37,57],"(SU).":[39],"spectrum":[43,49,54,58,66,98,146],"called":[45],"white":[46],"space":[47],"hole.":[50],"CR":[51,63],"utilizes":[52],"these":[53],"holes":[55],"users.":[59],"success":[61,101],"depends":[64,106],"on":[65,107],"sensing":[67,147],"efficiency.":[68],"Hence,":[69],"a":[70,85,126,135,191],"major":[71],"challenge":[72],"in":[73,84,226],"to":[77,121,177,204],"detect":[78],"presence":[80],"Energy":[88],"detection":[89,150],"method":[90,104,143],"one":[92],"methods":[95],"available":[96],"sensing.":[99],"this":[103,131],"totally":[105],"threshold":[109,115,137,225,240],"set":[110],"system.":[113],"used":[117],"Secondary":[119],"know":[122],"whether":[123],"there":[124],"user":[128],"activity.":[129],"In":[130],"paper,":[132],"we":[133],"propose":[134],"new":[136],"formulation":[138],"effective":[141],"iterative":[142],"efficient":[145],"using":[148,160],"energy":[149],"method.":[151],"proposed":[153],"algorithm":[154],"implemented":[156],"and":[157,162,165],"experimentally":[158],"verified":[159],"USRP2":[161],"Gnu":[163],"radio,":[164],"even":[166],"Receiver":[168],"Operating":[169],"Characteristics":[170],"(ROC)":[171],"compared":[173],"with":[174],"Matlab":[175],"Simulation":[176],"check":[178,205],"accuracy":[180,207],"algorithm.":[183],"experimental":[185],"verification":[186],"done":[188],"introducing":[190],"user,":[193],"which":[194,231],"makes":[195],"use":[196],"data":[199],"generated":[200],"from":[201],"Algorithm":[203],"data.":[210],"paper":[212],"further":[213],"introduces":[214],"concept":[216],"developing":[218],"Look":[219],"up":[220],"Table":[221],"(LUT)":[222],"instantaneous":[224],"form":[228],"cache":[230],"can":[232],"be":[233],"referred":[234],"determination.":[241]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-04-17T18:11:37.981687","created_date":"2025-10-10T00:00:00"}