{"id":"https://openalex.org/W4318485528","doi":"https://doi.org/10.3390/info14020075","title":"RIS-Enabled UAV Cognitive Radio Networks: Trajectory Design and Resource Allocation","display_name":"RIS-Enabled UAV Cognitive Radio Networks: Trajectory Design and Resource Allocation","publication_year":2023,"publication_date":"2023-01-28","ids":{"openalex":"https://openalex.org/W4318485528","doi":"https://doi.org/10.3390/info14020075"},"language":"en","primary_location":{"id":"doi:10.3390/info14020075","is_oa":true,"landing_page_url":"https://doi.org/10.3390/info14020075","pdf_url":"https://www.mdpi.com/2078-2489/14/2/75/pdf?version=1674897636","source":{"id":"https://openalex.org/S4210219776","display_name":"Information","issn_l":"2078-2489","issn":["2078-2489"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Information","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2078-2489/14/2/75/pdf?version=1674897636","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5050740366","display_name":"Liang Zhou","orcid":"https://orcid.org/0000-0002-2751-5974"},"institutions":[{"id":"https://openalex.org/I1328775524","display_name":"Zhejiang Sci-Tech University","ror":"https://ror.org/03893we55","country_code":"CN","type":"education","lineage":["https://openalex.org/I1328775524"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Liang Zhou","raw_affiliation_strings":["School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China","institution_ids":["https://openalex.org/I1328775524"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040432443","display_name":"Weiqiang Xu","orcid":"https://orcid.org/0000-0002-4206-7022"},"institutions":[{"id":"https://openalex.org/I1328775524","display_name":"Zhejiang Sci-Tech University","ror":"https://ror.org/03893we55","country_code":"CN","type":"education","lineage":["https://openalex.org/I1328775524"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Weiqiang Xu","raw_affiliation_strings":["School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China"],"raw_orcid":"https://orcid.org/0000-0002-4206-7022","affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China","institution_ids":["https://openalex.org/I1328775524"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026683603","display_name":"Chengqun Wang","orcid":"https://orcid.org/0000-0003-3139-9141"},"institutions":[{"id":"https://openalex.org/I1328775524","display_name":"Zhejiang Sci-Tech University","ror":"https://ror.org/03893we55","country_code":"CN","type":"education","lineage":["https://openalex.org/I1328775524"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chengqun Wang","raw_affiliation_strings":["School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China","institution_ids":["https://openalex.org/I1328775524"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084739355","display_name":"Hsiao\u2010Hwa Chen","orcid":"https://orcid.org/0000-0001-8473-0729"},"institutions":[{"id":"https://openalex.org/I91807558","display_name":"National Cheng Kung University","ror":"https://ror.org/01b8kcc49","country_code":"TW","type":"education","lineage":["https://openalex.org/I91807558"]}],"countries":["TW"],"is_corresponding":true,"raw_author_name":"Hsiao-Hwa Chen","raw_affiliation_strings":["Department of Engineering Science, National Cheng Kung University, Tainan City 70101, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Engineering Science, National Cheng Kung University, Tainan City 70101, Taiwan","institution_ids":["https://openalex.org/I91807558"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5040432443","https://openalex.org/A5084739355"],"corresponding_institution_ids":["https://openalex.org/I1328775524","https://openalex.org/I91807558"],"apc_list":{"value":1400,"currency":"CHF","value_usd":1515},"apc_paid":{"value":1400,"currency":"CHF","value_usd":1515},"fwci":0.8724,"has_fulltext":true,"cited_by_count":7,"citation_normalized_percentile":{"value":0.7210742,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":"14","issue":"2","first_page":"75","last_page":"75"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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/T11133","display_name":"UAV Applications and Optimization","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T12042","display_name":"Satellite Communication Systems","score":0.9966999888420105,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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":0.7795302271842957},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7139343619346619},{"id":"https://openalex.org/keywords/coordinate-descent","display_name":"Coordinate descent","score":0.6389303207397461},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.6166781783103943},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.5922113656997681},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.553972601890564},{"id":"https://openalex.org/keywords/trajectory","display_name":"Trajectory","score":0.5258793830871582},{"id":"https://openalex.org/keywords/software-deployment","display_name":"Software deployment","score":0.4817078709602356},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.47470560669898987},{"id":"https://openalex.org/keywords/resource-allocation","display_name":"Resource allocation","score":0.4663875102996826},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.4451505243778229},{"id":"https://openalex.org/keywords/resource","display_name":"Resource (disambiguation)","score":0.41382551193237305},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3903650641441345},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.30278897285461426},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.28125447034835815},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.21438497304916382},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2052585482597351},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09328833222389221}],"concepts":[{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.7795302271842957},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7139343619346619},{"id":"https://openalex.org/C157553263","wikidata":"https://www.wikidata.org/wiki/Q5168004","display_name":"Coordinate descent","level":2,"score":0.6389303207397461},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.6166781783103943},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.5922113656997681},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.553972601890564},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.5258793830871582},{"id":"https://openalex.org/C105339364","wikidata":"https://www.wikidata.org/wiki/Q2297740","display_name":"Software deployment","level":2,"score":0.4817078709602356},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.47470560669898987},{"id":"https://openalex.org/C29202148","wikidata":"https://www.wikidata.org/wiki/Q287260","display_name":"Resource allocation","level":2,"score":0.4663875102996826},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.4451505243778229},{"id":"https://openalex.org/C206345919","wikidata":"https://www.wikidata.org/wiki/Q20380951","display_name":"Resource (disambiguation)","level":2,"score":0.41382551193237305},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3903650641441345},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.30278897285461426},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.28125447034835815},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.21438497304916382},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2052585482597351},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09328833222389221},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","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},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/info14020075","is_oa":true,"landing_page_url":"https://doi.org/10.3390/info14020075","pdf_url":"https://www.mdpi.com/2078-2489/14/2/75/pdf?version=1674897636","source":{"id":"https://openalex.org/S4210219776","display_name":"Information","issn_l":"2078-2489","issn":["2078-2489"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Information","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:a474f53f0b984f89a82b9fdc40f9e335","is_oa":true,"landing_page_url":"https://doaj.org/article/a474f53f0b984f89a82b9fdc40f9e335","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Information, Vol 14, Iss 2, p 75 (2023)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2078-2489/14/2/75/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/info14020075","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Information","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/info14020075","is_oa":true,"landing_page_url":"https://doi.org/10.3390/info14020075","pdf_url":"https://www.mdpi.com/2078-2489/14/2/75/pdf?version=1674897636","source":{"id":"https://openalex.org/S4210219776","display_name":"Information","issn_l":"2078-2489","issn":["2078-2489"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Information","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.41999998688697815,"id":"https://metadata.un.org/sdg/8","display_name":"Decent work and economic growth"}],"awards":[{"id":"https://openalex.org/G1873216522","display_name":null,"funder_award_id":"U22A2004","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4318485528.pdf"},"referenced_works_count":32,"referenced_works":["https://openalex.org/W1977976974","https://openalex.org/W2071707134","https://openalex.org/W2101840010","https://openalex.org/W2168078104","https://openalex.org/W2523219060","https://openalex.org/W2769313250","https://openalex.org/W2908608035","https://openalex.org/W2950077417","https://openalex.org/W2963061782","https://openalex.org/W2963177943","https://openalex.org/W2963523817","https://openalex.org/W2984937369","https://openalex.org/W2996961035","https://openalex.org/W2997415551","https://openalex.org/W3000577820","https://openalex.org/W3010763570","https://openalex.org/W3027321015","https://openalex.org/W3046943120","https://openalex.org/W3082159919","https://openalex.org/W3084194173","https://openalex.org/W3094327823","https://openalex.org/W3094619726","https://openalex.org/W3104300639","https://openalex.org/W3115103619","https://openalex.org/W3117633996","https://openalex.org/W3127940641","https://openalex.org/W3133597210","https://openalex.org/W3144736582","https://openalex.org/W4250589301","https://openalex.org/W4285249428","https://openalex.org/W4285293662","https://openalex.org/W4285731275"],"related_works":["https://openalex.org/W59120657","https://openalex.org/W2075530143","https://openalex.org/W3091795725","https://openalex.org/W1531121096","https://openalex.org/W2384509413","https://openalex.org/W3193940080","https://openalex.org/W2325128397","https://openalex.org/W2995861515","https://openalex.org/W2512536427","https://openalex.org/W2121601714"],"abstract_inverted_index":{"Due":[0],"to":[1,32,76,89],"its":[2,41,54],"flexible":[3],"deployment":[4],"and":[5,109,120,138],"high":[6],"mobility":[7],"of":[8,23,27,94,103,151],"unmanned":[9],"aerial":[10],"vehicles":[11],"(UAVs),":[12],"the":[13,28,48,91,100,104,128,149,152],"UAV-assisted":[14,81],"cognitive":[15,82],"radio":[16,83],"(CR)":[17,84],"network":[18],"has":[19],"attracted":[20],"a":[21,63,69,95,115],"lot":[22],"attention":[24],"as":[25],"one":[26],"most":[29],"promising":[30],"techniques":[31],"address":[33],"spectrum":[34],"congestion":[35],"issues":[36],"in":[37,53,80],"futuristic":[38],"networks.":[39,85],"However,":[40],"performance":[42],"can":[43],"be":[44],"severely":[45],"affected":[46],"by":[47,68],"blocked":[49],"line-of-sight":[50],"(LoS)":[51],"channel":[52],"air-to-ground":[55],"(A2G)":[56],"links.":[57],"In":[58,124],"this":[59],"paper,":[60],"we":[61,126],"propose":[62],"UAV":[64,105],"CR":[65],"system":[66],"enabled":[67],"reconfigurable":[70],"intelligent":[71],"surface":[72],"(RIS),":[73],"which":[74],"helps":[75],"reconstruct":[77],"reliable":[78],"links":[79],"Our":[86],"goal":[87],"is":[88],"maximize":[90],"achievable":[92],"rate":[93],"secondary":[96],"receiver":[97],"(SR)":[98],"through":[99],"proper":[101],"selection":[102],"trajectory,":[106],"transmit":[107],"power,":[108],"RIS":[110],"phase":[111],"shifts":[112],"based":[113],"on":[114],"given":[116],"interference":[117],"temperature":[118],"threshold":[119],"other":[121],"practical":[122],"constraints.":[123],"addition,":[125],"solve":[127],"corresponding":[129],"non-convex":[130],"optimization":[131],"problem":[132],"using":[133],"block":[134],"coordinate":[135],"descent":[136],"(BCD)":[137],"successive":[139],"convex":[140],"approximation":[141],"(SCA)":[142],"algorithms.":[143,154],"The":[144],"simulation":[145],"results":[146],"will":[147],"demonstrate":[148],"effectiveness":[150],"proposed":[153]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
