{"id":"https://openalex.org/W7123348736","doi":"https://doi.org/10.1109/access.2026.3653293","title":"Optimization of Mixed FSO-RF Downlink Systems With SLIPT-Enabled UAV Base Station and HAP-Mounted Optical RIS","display_name":"Optimization of Mixed FSO-RF Downlink Systems With SLIPT-Enabled UAV Base Station and HAP-Mounted Optical RIS","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7123348736","doi":"https://doi.org/10.1109/access.2026.3653293"},"language":"en","primary_location":{"id":"doi:10.1109/access.2026.3653293","doi":"https://doi.org/10.1109/access.2026.3653293","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2026.3653293","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2026.3653293","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5093767875","display_name":"Binh\u2010Minh Vu","orcid":"https://orcid.org/0009-0007-8587-8726","observed_orcids":["https://orcid.org/0009-0007-8587-8726"]},"institutions":[{"id":"https://openalex.org/I141371507","display_name":"Soongsil University","ror":"https://ror.org/017xnm587","country_code":"KR","type":"education","lineage":["https://openalex.org/I141371507"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Binh-Minh Vu","raw_affiliation_strings":["School of Electronic Engineering, Soongsil University, Seoul, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic Engineering, Soongsil University, Seoul, South Korea","institution_ids":["https://openalex.org/I141371507"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026699117","display_name":"Ngoc The Dang","orcid":"https://orcid.org/0000-0001-9228-5629","observed_orcids":["https://orcid.org/0000-0001-9228-5629"]},"institutions":[{"id":"https://openalex.org/I4400600977","display_name":"Posts and Telecommunications Institute of Technology","ror":"https://ror.org/0363rtq22","country_code":"VN","type":"education","lineage":["https://openalex.org/I4400600977"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Ngoc T. Dang","raw_affiliation_strings":["Posts and Telecommunications Institute of Technology, Hanoi, Vietnam"],"raw_orcid":"https://orcid.org/0000-0001-9228-5629","affiliations":[{"raw_affiliation_string":"Posts and Telecommunications Institute of Technology, Hanoi, Vietnam","institution_ids":["https://openalex.org/I4400600977"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5039057268","display_name":"Oh\u2010Soon Shin","orcid":"https://orcid.org/0000-0002-6984-8240","observed_orcids":["https://orcid.org/0000-0002-6984-8240"]},"institutions":[{"id":"https://openalex.org/I141371507","display_name":"Soongsil University","ror":"https://ror.org/017xnm587","country_code":"KR","type":"education","lineage":["https://openalex.org/I141371507"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Oh-Soon Shin","raw_affiliation_strings":["School of Electronic Engineering, Soongsil University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0000-0002-6984-8240","affiliations":[{"raw_affiliation_string":"School of Electronic Engineering, Soongsil University, Seoul, South Korea","institution_ids":["https://openalex.org/I141371507"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2075,"currency":"USD","value_usd":2075},"apc_paid":{"value":2075,"currency":"USD","value_usd":2075},"fwci":2.6338,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.86505557,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":96},"biblio":{"volume":"14","issue":null,"first_page":"7099","last_page":"7115"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10851","display_name":"Optical Wireless Communication Technologies","score":0.92330002784729,"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/T10851","display_name":"Optical Wireless Communication Technologies","score":0.92330002784729,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.048700001090765,"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":0.012799999676644802,"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/uav-base-stations","display_name":"UAV base stations","score":0.9079999923706055},{"id":"https://openalex.org/keywords/high-altitude-platforms","display_name":"high-altitude platforms","score":0.890999972820282},{"id":"https://openalex.org/keywords/uav-placement-optimization","display_name":"UAV placement optimization","score":0.5960000157356262},{"id":"https://openalex.org/keywords/beamforming","display_name":"beamforming","score":0.8069999814033508},{"id":"https://openalex.org/keywords/power-allocation","display_name":"power allocation","score":0.8240000009536743},{"id":"https://openalex.org/keywords/power-splitting-ratio","display_name":"power splitting ratio","score":0.9570000171661377},{"id":"https://openalex.org/keywords/energy-efficiency","display_name":"energy efficiency","score":0.8289999961853027},{"id":"https://openalex.org/keywords/inner-approximation","display_name":"inner approximation","score":0.5989999771118164},{"id":"https://openalex.org/keywords/nonconvex-optimization","display_name":"non-convex optimization","score":0.8880000114440918}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.8026000261306763},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.795199990272522},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.737500011920929},{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.7039999961853027},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6538000106811523},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.46050000190734863},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4440999925136566},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4185999929904938},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4178999960422516},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.41100001335144043},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.3666999936103821},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.35350000858306885},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.3441999852657318},{"id":"https://openalex.org/C168292644","wikidata":"https://www.wikidata.org/wiki/Q10860336","display_name":"Power optimization","level":4,"score":0.3411000072956085},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.32190001010894775},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.32170000672340393},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.3043000102043152},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.2980000078678131},{"id":"https://openalex.org/C129404179","wikidata":"https://www.wikidata.org/wiki/Q1469765","display_name":"Optical communication","level":2,"score":0.2953000068664551},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2921999990940094},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.2897999882698059},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.28349998593330383},{"id":"https://openalex.org/C149768029","wikidata":"https://www.wikidata.org/wiki/Q1509342","display_name":"Power budget","level":4,"score":0.2669999897480011},{"id":"https://openalex.org/C67186554","wikidata":"https://www.wikidata.org/wiki/Q17103352","display_name":"Maximum power transfer theorem","level":3,"score":0.2630000114440918}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2026.3653293","doi":"https://doi.org/10.1109/access.2026.3653293","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2026.3653293","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:94166d30eb394345b1eb2ba1749d2c38","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/94166d30eb394345b1eb2ba1749d2c38","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,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 14, Pp 7099-7115 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2026.3653293","doi":"https://doi.org/10.1109/access.2026.3653293","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2026.3653293","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","score":0.7207000255584717,"display_name":"Industry, innovation and infrastructure"}],"study_designs":[],"awards":[{"id":"https://openalex.org/G4859779787","display_name":"Thi\u1ebft k\u1ebf c\u00e1c m\u1ea1ng phi m\u1eb7t \u0111\u1ea5t d\u1ef1a tr\u00ean truy\u1ec1n th\u00f4ng quang kh\u00f4ng gian t\u1ef1 do c\u00f3 t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u00e1c b\u1ec1 m\u1eb7t ph\u1ea3n x\u1ea1 th\u00f4ng minh v\u00e0 truy\u1ec1n t\u1ea3i n\u0103ng l\u01b0\u1ee3ng kh\u00f4ng d\u00e2y","funder_award_id":"102.02-2023.18","funder_id":"https://openalex.org/F4320309617","funder_display_name":"National Foundation for Science and Technology Development"}],"funders":[{"id":"https://openalex.org/F4320309617","display_name":"National Foundation for Science and Technology Development","ror":"https://ror.org/04rw64z44"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W1969648546","https://openalex.org/W2114791139","https://openalex.org/W2461220469","https://openalex.org/W2511038469","https://openalex.org/W2580241428","https://openalex.org/W2611908895","https://openalex.org/W2761902178","https://openalex.org/W2784638341","https://openalex.org/W2786239590","https://openalex.org/W2804608220","https://openalex.org/W2900466600","https://openalex.org/W2915576678","https://openalex.org/W2940674238","https://openalex.org/W2963912769","https://openalex.org/W3010372757","https://openalex.org/W3012252023","https://openalex.org/W3025048143","https://openalex.org/W3036079579","https://openalex.org/W3037943110","https://openalex.org/W3045597924","https://openalex.org/W3113122929","https://openalex.org/W3130951747","https://openalex.org/W3155561023","https://openalex.org/W3167683018","https://openalex.org/W3179283102","https://openalex.org/W3192060051","https://openalex.org/W3204818146","https://openalex.org/W3217259041","https://openalex.org/W4214839470","https://openalex.org/W4280631165","https://openalex.org/W4285047777","https://openalex.org/W4285118548","https://openalex.org/W4294871588","https://openalex.org/W4366818733","https://openalex.org/W4386649036","https://openalex.org/W4387129500","https://openalex.org/W4387272105","https://openalex.org/W4387790021","https://openalex.org/W4388145410","https://openalex.org/W4390691357","https://openalex.org/W4391019653","https://openalex.org/W4392693811","https://openalex.org/W4393379800","https://openalex.org/W4399939588","https://openalex.org/W4401809224","https://openalex.org/W4402834157","https://openalex.org/W4413188679","https://openalex.org/W4414646863","https://openalex.org/W6959410738"],"related_works":["https://openalex.org/W7124973190","https://openalex.org/W4393105480","https://openalex.org/W7168246302","https://openalex.org/W4402187332","https://openalex.org/W4414646863","https://openalex.org/W4214497476","https://openalex.org/W7101770330","https://openalex.org/W2904994834","https://openalex.org/W4408779989","https://openalex.org/W7129445103"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,117],"investigate":[4],"a":[5,17,32],"mixed":[6],"free-space":[7],"optics":[8],"(FSO)-radio":[9],"frequency":[10],"(RF)":[11],"downlink":[12],"communication":[13],"system":[14],"enhanced":[15],"by":[16,75],"simultaneous":[18],"lightwave":[19],"information":[20],"and":[21,31,86,93,106,122],"power":[22,53,84],"transfer":[23],"(SLIPT)-enabled":[24],"unmanned":[25],"aerial":[26],"vehicle":[27],"base":[28],"station":[29,57],"(UAV-BS)":[30],"high-altitude":[33],"platform":[34],"(HAP)-mounted":[35],"optical":[36,55],"reconfigurable":[37],"intelligent":[38],"surface":[39],"(ORIS).":[40],"We":[41],"develop":[42],"overall":[43],"optimization":[44,101],"frameworks":[45],"for":[46,59,111],"end-to-end":[47],"systems":[48],"aimed":[49],"at":[50,54],"minimizing":[51],"transmitted":[52],"ground":[56],"(OGS)":[58],"backhaul":[60],"link":[61],"or":[62],"maximizing":[63],"the":[64,69,78,142,145],"multiuser":[65],"fairness":[66],"rate":[67],"in":[68],"access":[70],"link.":[71],"This":[72],"is":[73],"achieved":[74],"jointly":[76],"optimizing":[77],"UAV-BS":[79],"placement,":[80],"beamforming":[81],"strategy,":[82],"OGS":[83],"allocation,":[85],"power-splitting":[87],"(PS)":[88],"ratio":[89],"under":[90],"energy":[91],"efficiency":[92],"quality":[94],"of":[95,144],"service":[96],"(QoS)":[97],"constraints.":[98],"The":[99],"formulated":[100],"problems":[102],"are":[103],"highly":[104],"non-linear":[105],"non-convex,":[107],"posing":[108],"significant":[109],"challenges":[110],"conventional":[112,139],"methods.":[113],"To":[114],"address":[115],"this,":[116],"employ":[118],"inner":[119],"approximation":[120],"techniques":[121],"propose":[123],"an":[124],"iterative":[125],"algorithm":[126],"to":[127,138],"achieve":[128],"efficient":[129],"solutions.":[130],"Simulation":[131],"results":[132],"demonstrate":[133],"substantial":[134],"performance":[135],"gains":[136],"compared":[137],"benchmarks,":[140],"highlighting":[141],"efficacy":[143],"proposed":[146],"approach.":[147]},"counts_by_year":[{"year":2026,"cited_by_count":2}],"updated_date":"2026-11-13T13:42:25.865203","created_date":"2026-01-14T00:00:00"}