乐胖代购免代理版

{"id":"https://openalex.org/W2119592181","doi":"https://doi.org/10.1109/pimrc.2007.4394507","title":"Radio Resource Allocation in OFDMA Cognitive Radio Systems","display_name":"Radio Resource Allocation in OFDMA Cognitive Radio Systems","publication_year":2007,"publication_date":"2007-01-01","ids":{"openalex":"https://openalex.org/W2119592181","doi":"https://doi.org/10.1109/pimrc.2007.4394507","mag":"2119592181"},"language":"en","primary_location":{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2007.4394507","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false},"type":"article","type_crossref":"proceedings-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/A5103413406","display_name":"Feng-Seng Chu","orcid":null},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Feng-Seng Chu","raw_affiliation_strings":["National Taiwan University, Taipei,"],"affiliations":[{"raw_affiliation_string":"National Taiwan University, Taipei,","institution_ids":["https://openalex.org/I16733864"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5022325942","display_name":"Kwang\u2010Cheng Chen","orcid":"https://orcid.org/0000-0002-1024-6106"},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Kwang-Cheng Chen","raw_affiliation_strings":["National Taiwan University, Taipei,"],"affiliations":[{"raw_affiliation_string":"National Taiwan University, Taipei,","institution_ids":["https://openalex.org/I16733864"]}]}],"institution_assertions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":7.796,"has_fulltext":true,"fulltext_origin":"ngrams","cited_by_count":39,"citation_normalized_percentile":{"value":0.921766,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":92,"max":93},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9999,"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"}},"topics":[{"id":"https://openalex.org/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9999,"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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9999,"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":0.9999,"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/frequency-division-multiple-access","display_name":"Frequency-division multiple access","score":0.5875845},{"id":"https://openalex.org/keywords/channel-allocation-schemes","display_name":"Channel allocation schemes","score":0.48608258},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.43420544}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.9062054},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.75111884},{"id":"https://openalex.org/C2775907427","wikidata":"https://www.wikidata.org/wiki/Q2697649","display_name":"Orthogonal frequency-division multiple access","level":4,"score":0.7479768},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.62380064},{"id":"https://openalex.org/C2776208322","wikidata":"https://www.wikidata.org/wiki/Q844071","display_name":"Frequency-division multiple access","level":4,"score":0.5875845},{"id":"https://openalex.org/C29202148","wikidata":"https://www.wikidata.org/wiki/Q287260","display_name":"Resource allocation","level":2,"score":0.58572656},{"id":"https://openalex.org/C19247436","wikidata":"https://www.wikidata.org/wiki/Q192727","display_name":"Physical layer","level":3,"score":0.4930677},{"id":"https://openalex.org/C114237682","wikidata":"https://www.wikidata.org/wiki/Q5072483","display_name":"Channel allocation schemes","level":3,"score":0.48608258},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.4847088},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4691355},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.43420544},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.43112218},{"id":"https://openalex.org/C182448111","wikidata":"https://www.wikidata.org/wiki/Q7281197","display_name":"Radio resource management","level":4,"score":0.41009307},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.27633286},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.20674983},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.17216435},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.08120698}],"mesh":[],"locations_count":1,"locations":[{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2007.4394507","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false}],"best_oa_location":null,"sustainable_development_goals":[],"grants":[],"datasets":[],"versions":[],"referenced_works_count":10,"referenced_works":["https://openalex.org/W1869344699","https://openalex.org/W2040336387","https://openalex.org/W2071707134","https://openalex.org/W2095626188","https://openalex.org/W2106749358","https://openalex.org/W2108359457","https://openalex.org/W2147163807","https://openalex.org/W2147376039","https://openalex.org/W2153090463","https://openalex.org/W2153197601"],"related_works":["https://openalex.org/W2169305728","https://openalex.org/W2124968678","https://openalex.org/W2105255013","https://openalex.org/W2092365485","https://openalex.org/W2078013232","https://openalex.org/W2042624339","https://openalex.org/W2025189274","https://openalex.org/W2004574319","https://openalex.org/W1654541684","https://openalex.org/W1585503616"],"abstract_inverted_index":{"Cognitive":[0],"radio":[1,36,76,88],"has":[2],"been":[3],"recently":[4],"introduced":[5],"to":[6,47,59],"enhance":[7],"spectrum":[8],"efficiency,":[9],"while":[10,91],"orthogonal":[11],"frequency":[12],"division":[13],"multiple":[14],"access":[15],"(OFDMA)":[16],"as":[17],"a":[18,43,65,81,142],"multi-carrier":[19],"technology":[20],"is":[21,53],"widely":[22],"considered":[23],"for":[24,67],"future":[25],"wireless":[26],"communications.":[27],"In":[28],"this":[29],"paper,":[30],"we":[31,79],"consider":[32],"practical":[33],"OFDMA":[34,87,129],"cognitive":[35,75],"operating":[37],"environments":[38],"at":[39],"physical":[40,77],"layer":[41],"by":[42,115,140],"composite":[44],"hypothesis":[45,68],"test":[46],"identify":[48],"channel":[49,56],"status.":[50],"Lloyd-Max":[51],"Algorithm":[52],"used":[54],"in":[55,101,120,145],"identification":[57],"function":[58],"cluster":[60],"observed":[61],"data":[62],"and":[63,96,110,133,147],"generate":[64],"threshold":[66],"test.":[69],"By":[70],"incorporating":[71],"such":[72,102,141],"information":[73],"from":[74],"layer,":[78],"develop":[80],"novel":[82],"three-step":[83],"cross-layer":[84],"optimization":[85,144],"of":[86,98,128],"resource":[89],"allocation,":[90],"keep":[92],"fairness":[93,134],"among":[94],"users":[95],"maximization":[97],"total":[99],"capacity":[100,127],"time":[103,108],"varying":[104],"environment.":[105,150],"The":[106],"power,":[107],"slots":[109],"sub-carriers":[111],"are":[112],"jointly":[113],"optimized":[114],"two":[116],"separate":[117],"optimal":[118],"algorithms":[119],"three":[121],"steps.":[122],"Our":[123],"results":[124],"show":[125],"that":[126],"can":[130,135],"be":[131,137],"maximized":[132],"also":[136],"maintained":[138],"well":[139],"pioneer":[143],"dynamic":[146],"time-varying":[148],"communication":[149]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W2119592181","counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":6}],"updated_date":"2024-12-10T05:00:49.264617","created_date":"2016-06-24"}