{"id":"https://openalex.org/W7130435745","doi":"https://doi.org/10.1109/tencon66050.2025.11375091","title":"Optimal Active/Passive Beamforming and Positioning of RIS for Ship-Shore Communications","display_name":"Optimal Active/Passive Beamforming and Positioning of RIS for Ship-Shore Communications","publication_year":2025,"publication_date":"2025-10-27","ids":{"openalex":"https://openalex.org/W7130435745","doi":"https://doi.org/10.1109/tencon66050.2025.11375091"},"language":null,"primary_location":{"id":"doi:10.1109/tencon66050.2025.11375091","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tencon66050.2025.11375091","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"TENCON 2025 - 2025 IEEE Region 10 Conference (TENCON)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5126294079","display_name":"Deepthi M","orcid":null},"institutions":[{"id":"https://openalex.org/I133769559","display_name":"Government Medical College","ror":"https://ror.org/016je1253","country_code":"IN","type":"education","lineage":["https://openalex.org/I133769559"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Deepthi M","raw_affiliation_strings":["Govt. Engineering College Thrissur,Dept. of Electronics & Communication,Thrissur,Kerala,India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Govt. Engineering College Thrissur,Dept. of Electronics & Communication,Thrissur,Kerala,India","institution_ids":["https://openalex.org/I133769559"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5126324778","display_name":"Poornima S","orcid":null},"institutions":[{"id":"https://openalex.org/I20497027","display_name":"Cochin University of Science and Technology","ror":"https://ror.org/00a4kqq17","country_code":"IN","type":"education","lineage":["https://openalex.org/I20497027"]},{"id":"https://openalex.org/I2800816844","display_name":"General Hospital Ernakulam","ror":"https://ror.org/03nyhx379","country_code":"IN","type":"healthcare","lineage":["https://openalex.org/I2800816844"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Poornima S","raw_affiliation_strings":["Cochin University of Science & Technology,Department of Electronics,Ernakulam,Kerala,India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cochin University of Science & Technology,Department of Electronics,Ernakulam,Kerala,India","institution_ids":["https://openalex.org/I20497027","https://openalex.org/I2800816844"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5121022910","display_name":"Deepak S","orcid":null},"institutions":[{"id":"https://openalex.org/I133769559","display_name":"Government Medical College","ror":"https://ror.org/016je1253","country_code":"IN","type":"education","lineage":["https://openalex.org/I133769559"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Deepak S","raw_affiliation_strings":["Govt. Engineering College Thrissur,Dept. of Electronics & Communication,Thrissur,Kerala,India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Govt. Engineering College Thrissur,Dept. of Electronics & Communication,Thrissur,Kerala,India","institution_ids":["https://openalex.org/I133769559"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.77400279,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"689","last_page":"693"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11133","display_name":"UAV Applications and Optimization","score":0.3785000145435333,"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"}},"topics":[{"id":"https://openalex.org/T11133","display_name":"UAV Applications and Optimization","score":0.3785000145435333,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.11259999871253967,"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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.10570000112056732,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/beamforming","display_name":"Beamforming","score":0.8802000284194946},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.5992000102996826},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5906999707221985},{"id":"https://openalex.org/keywords/particle-swarm-optimization","display_name":"Particle swarm optimization","score":0.5620999932289124},{"id":"https://openalex.org/keywords/reliability","display_name":"Reliability (semiconductor)","score":0.49559998512268066},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.48510000109672546},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.4713999927043915},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.4120999872684479}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8802000284194946},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.5992000102996826},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5950000286102295},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5906999707221985},{"id":"https://openalex.org/C85617194","wikidata":"https://www.wikidata.org/wiki/Q2072794","display_name":"Particle swarm optimization","level":2,"score":0.5620999932289124},{"id":"https://openalex.org/C43214815","wikidata":"https://www.wikidata.org/wiki/Q7310987","display_name":"Reliability (semiconductor)","level":3,"score":0.49559998512268066},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.48510000109672546},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.4713999927043915},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.4120999872684479},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4065999984741211},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4023999869823456},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.3889999985694885},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.35530000925064087},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.35190001130104065},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3391999900341034},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.328900009393692},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.2874000072479248},{"id":"https://openalex.org/C557945733","wikidata":"https://www.wikidata.org/wiki/Q389772","display_name":"Data transmission","level":2,"score":0.28369998931884766},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.27079999446868896},{"id":"https://openalex.org/C41045048","wikidata":"https://www.wikidata.org/wiki/Q202843","display_name":"Linear programming","level":2,"score":0.2685999870300293},{"id":"https://openalex.org/C62191587","wikidata":"https://www.wikidata.org/wiki/Q4771249","display_name":"Antenna array","level":3,"score":0.26669999957084656},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.251800000667572}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tencon66050.2025.11375091","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tencon66050.2025.11375091","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"TENCON 2025 - 2025 IEEE Region 10 Conference (TENCON)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1997834106","https://openalex.org/W2969424089","https://openalex.org/W4206817532","https://openalex.org/W4225817403","https://openalex.org/W4312932456","https://openalex.org/W4313188240","https://openalex.org/W4376456921","https://openalex.org/W4402743133"],"related_works":[],"abstract_inverted_index":{"RIS":[0,18,62,152,164,178],"offers":[1],"a":[2,125,185,202],"cost-effective":[3],"solution":[4,127],"to":[5,24,35,46,74,144,201],"overcome":[6],"the":[7,37,49,53,58,68,76,114,136,146,158,170,173,182,207],"coverage":[8],"issues":[9],"of":[10,39,52,61,70,88,113,148,209],"using":[11,94,119],"next-generation":[12],"communication":[13],"systems.":[14],"UAVs":[15],"with":[16,124],"mounted":[17],"can":[19],"flexibly":[20],"provide":[21],"reliable":[22],"connectivity":[23],"remote":[25],"areas.":[26],"In":[27],"this":[28],"paper,":[29],"an":[30,71,110],"RIS-mounted":[31,72,89],"UAV":[32,73,90,149],"is":[33,91,116,132,142,189],"employed":[34],"improve":[36],"reliability":[38],"ship-to-shore":[40],"communication.":[41],"The":[42,79,191],"proposed":[43],"work":[44],"aims":[45],"jointly":[47],"optimize":[48],"beamforming":[50,85],"vector":[51],"transmit":[54],"antenna":[55],"(active":[56],"beamforming),":[57],"phase":[59],"shifts":[60],"unit":[63],"elements":[64],"(passive":[65],"beamforming)":[66],"and":[67,86,99,140,206],"placement":[69],"maximize":[75],"receiver's":[77],"capacity.":[78],"exact":[80],"joint":[81,106,195],"optimization":[82],"for":[83,128],"active/passive":[84],"positioning":[87],"obtained":[92],"by":[93],"Maximum":[95],"Ratio":[96],"Transmission":[97],"(MRT)":[98],"Particle":[100],"Swarm":[101],"Optimization":[102],"(PSO).":[103],"An":[104],"approximate":[105],"optimization,":[107],"which":[108],"maximizes":[109],"upper":[111],"bound":[112],"SNR,":[115],"also":[117],"solved":[118],"MRT,":[120],"semi-definite":[121],"programming":[122],"(SDP)":[123],"closed-form":[126],"optimum":[129],"position.":[130],"It":[131],"found":[133],"that":[134],"when":[135],"distance":[137,193],"between":[138],"BS":[139,171],"user":[141],"equal":[143],"twice":[145],"height":[147],"($D=2":[150],"h$),":[151],"should":[153],"be":[154,166],"placed":[155,167,179],"vertically":[156,180],"at":[157,181,184],"mid-point;":[159],"for$D":[160],"\\gg":[161],"2":[162],"h$the":[163],"may":[165],"directly":[168],"above":[169],"or":[172],"user.":[174],"For":[175],"lower":[176],"distances,":[177],"mid-point,":[183],"fixed":[186],"UAV-safe":[187],"height,":[188],"best.":[190],"two":[192],"optimized":[194],"optimizations":[196],"show":[197],"superior":[198],"performance":[199],"compared":[200],"benchmark":[203],"scheme":[204],"[3]":[205],"case":[208],"random":[210],"beamforming.":[211]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2026-02-19T00:00:00"}