{"id":"https://openalex.org/W7163195369","doi":"https://doi.org/10.1109/lwc.2026.3699411","title":"Rotatable DS-STAR-Assisted Cooperative Multi-BS Downlink NOMA Systems: Joint Orientation and Resource Allocation Optimization","display_name":"Rotatable DS-STAR-Assisted Cooperative Multi-BS Downlink NOMA Systems: Joint Orientation and Resource Allocation Optimization","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7163195369","doi":"https://doi.org/10.1109/lwc.2026.3699411"},"language":null,"primary_location":{"id":"doi:10.1109/lwc.2026.3699411","is_oa":true,"landing_page_url":"https://doi.org/10.1109/lwc.2026.3699411","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"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 Wireless Communications Letters","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1109/lwc.2026.3699411","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101229868","display_name":"Po-Chen Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Po-Chen Wu","raw_affiliation_strings":["Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan"],"raw_orcid":"https://orcid.org/0009-0003-7204-5005","affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I148366613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5137639554","display_name":"Dai-Ting Ho","orcid":null},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Dai-Ting Ho","raw_affiliation_strings":["Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan"],"raw_orcid":"https://orcid.org/0009-0000-9394-6345","affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I148366613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020169858","display_name":"Kai\u2010Ten Feng","orcid":"https://orcid.org/0000-0002-2781-8449"},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Kai-Ten Feng","raw_affiliation_strings":["Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan"],"raw_orcid":"https://orcid.org/0000-0002-2781-8449","affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I148366613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100329747","display_name":"Lie\u2010Liang Yang","orcid":"https://orcid.org/0000-0002-2032-9327"},"institutions":[{"id":"https://openalex.org/I43439940","display_name":"University of Southampton","ror":"https://ror.org/01ryk1543","country_code":"GB","type":"education","lineage":["https://openalex.org/I43439940"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Lie-Liang Yang","raw_affiliation_strings":["Next Generation Wireless Research Group, School of Electronics and Computer Science, University of Southampton, Southampton, U.K"],"raw_orcid":"https://orcid.org/0000-0002-2032-9327","affiliations":[{"raw_affiliation_string":"Next Generation Wireless Research Group, School of Electronics and Computer Science, University of Southampton, Southampton, U.K","institution_ids":["https://openalex.org/I43439940"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102151359","display_name":"Jen\u2010Ming Wu","orcid":"https://orcid.org/0000-0002-8474-1281"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jen-Ming Wu","raw_affiliation_strings":["Next-Generation Communications Research Center, Hon Hai Research Institute, Taipei, Taiwan"],"raw_orcid":"https://orcid.org/0000-0002-8474-1281","affiliations":[{"raw_affiliation_string":"Next-Generation Communications Research Center, Hon Hai Research Institute, Taipei, Taiwan","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"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":0.6374981,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"15","issue":null,"first_page":"3471","last_page":"3475"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9919000267982483,"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":0.9919000267982483,"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/T10851","display_name":"Optical Wireless Communication Technologies","score":0.0017999999690800905,"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/T12079","display_name":"IoT Networks and Protocols","score":0.0010999999940395355,"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/noma","display_name":"Noma","score":0.7910000085830688},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7799000144004822},{"id":"https://openalex.org/keywords/resource-allocation","display_name":"Resource allocation","score":0.6553999781608582},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.6406999826431274},{"id":"https://openalex.org/keywords/resource-management","display_name":"Resource management (computing)","score":0.5929999947547913},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.4154999852180481},{"id":"https://openalex.org/keywords/orientation","display_name":"Orientation (vector space)","score":0.41519999504089355},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.41499999165534973},{"id":"https://openalex.org/keywords/cellular-radio","display_name":"Cellular radio","score":0.3718000054359436}],"concepts":[{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.7910000085830688},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7799000144004822},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7768999934196472},{"id":"https://openalex.org/C29202148","wikidata":"https://www.wikidata.org/wiki/Q287260","display_name":"Resource allocation","level":2,"score":0.6553999781608582},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.6406999826431274},{"id":"https://openalex.org/C2780609101","wikidata":"https://www.wikidata.org/wiki/Q17156588","display_name":"Resource management (computing)","level":2,"score":0.5929999947547913},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5436999797821045},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.4154999852180481},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.41519999504089355},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.41499999165534973},{"id":"https://openalex.org/C2986910011","wikidata":"https://www.wikidata.org/wiki/Q17517","display_name":"Cellular radio","level":3,"score":0.3718000054359436},{"id":"https://openalex.org/C206345919","wikidata":"https://www.wikidata.org/wiki/Q20380951","display_name":"Resource (disambiguation)","level":2,"score":0.36230000853538513},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.34599998593330383},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.3343000113964081},{"id":"https://openalex.org/C114237682","wikidata":"https://www.wikidata.org/wiki/Q5072483","display_name":"Channel allocation schemes","level":3,"score":0.31769999861717224},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.31349998712539673},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3127000033855438},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.3109000027179718},{"id":"https://openalex.org/C3020028006","wikidata":"https://www.wikidata.org/wiki/Q9158","display_name":"Electronic mail","level":2,"score":0.30970001220703125},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.305400013923645},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.29280000925064087},{"id":"https://openalex.org/C134579502","wikidata":"https://www.wikidata.org/wiki/Q1455619","display_name":"Frequency allocation","level":2,"score":0.29030001163482666},{"id":"https://openalex.org/C153646914","wikidata":"https://www.wikidata.org/wiki/Q535695","display_name":"Cellular network","level":2,"score":0.28119999170303345},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.27469998598098755},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.26420000195503235},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.2630000114440918},{"id":"https://openalex.org/C95491727","wikidata":"https://www.wikidata.org/wiki/Q992968","display_name":"Mobile telephony","level":3,"score":0.2506999969482422}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2026.3699411","is_oa":true,"landing_page_url":"https://doi.org/10.1109/lwc.2026.3699411","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1109/lwc.2026.3699411","is_oa":true,"landing_page_url":"https://doi.org/10.1109/lwc.2026.3699411","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"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 Wireless Communications Letters","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G5409230135","display_name":null,"funder_award_id":"NSTC 114-2218-E-A49-019","funder_id":"https://openalex.org/F4320331164","funder_display_name":"National Science and Technology Council"},{"id":"https://openalex.org/G6229798000","display_name":null,"funder_award_id":"114-2218-E-A49-017","funder_id":"https://openalex.org/F4320331164","funder_display_name":"National Science and Technology Council"},{"id":"https://openalex.org/G6422270296","display_name":null,"funder_award_id":"112UC2N006","funder_id":"https://openalex.org/F4320331164","funder_display_name":"National Science and Technology Council"},{"id":"https://openalex.org/G7118226292","display_name":null,"funder_award_id":"113-2221-E-A49-119-MY3","funder_id":"https://openalex.org/F4320331164","funder_display_name":"National Science and Technology Council"}],"funders":[{"id":"https://openalex.org/F4320307723","display_name":"Spine Education and Research Institute","ror":"https://ror.org/04v7vb598"},{"id":"https://openalex.org/F4320331164","display_name":"National Science and Technology Council","ror":"https://ror.org/00wnb9798"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"investigates":[2],"a":[3,56,71,85],"rotatable":[4,140],"double-sided":[5],"simultaneously":[6],"transmitting":[7],"and":[8,42,51,88,99,110,119,123,137],"reflecting":[9],"reconfigurable":[10],"intelligent":[11],"surface":[12],"(DS-STAR)\u2013assisted":[13],"cooperative":[14,147],"multi-base-station":[15],"(BS)":[16],"downlink":[17],"non-orthogonal":[18],"multiple":[19,129],"access":[20,130],"(NOMA)":[21],"system.":[22],"We":[23],"aim":[24],"to":[25,55,92],"maximize":[26],"the":[27,43,94,135],"achievable":[28],"sum":[29,113],"rate":[30],"by":[31],"jointly":[32],"optimizing":[33],"multi-BS":[34],"beamforming,":[35],"NOMA":[36,82,148],"pairing,":[37],"SIC":[38],"ordering,":[39],"DS-STAR":[40,44,97],"coefficients,":[41],"physical":[45],"orientation":[46,98],"under":[47],"practical":[48],"fairness,":[49],"power,":[50],"hardware":[52],"constraints,":[53],"leading":[54],"highly":[57],"coupled":[58],"non-convex":[59],"mixed-integer":[60],"nonlinear":[61],"program":[62],"(MINLP).":[63],"To":[64],"efficiently":[65],"solve":[66],"this":[67],"problem,":[68],"we":[69],"propose":[70],"clustered":[72],"orientation-aware":[73],"Bayesian":[74,87],"alternating":[75,89],"optimization":[76,90,145],"(COBALT)":[77],"algorithm,":[78],"which":[79],"combines":[80],"low-complexity":[81],"pairing":[83],"with":[84],"two-layer":[86],"framework":[91],"capture":[93],"coupling":[95],"between":[96],"coefficient":[100],"design.":[101],"Simulation":[102],"results":[103,133],"demonstrate":[104],"that":[105],"COBALT":[106],"achieves":[107],"approximately":[108],"11%":[109],"20.8%":[111],"higher":[112],"rates":[114],"than":[115],"block":[116],"coordinate":[117],"descent\u2013based":[118],"random-orientation":[120],"benchmarks,":[121],"respectively,":[122],"about":[124],"19%":[125],"gains":[126],"over":[127],"space-division":[128],"(SDMA).":[131],"These":[132],"highlight":[134],"robustness":[136],"effectiveness":[138],"of":[139],"DS-STARs":[141],"for":[142],"interference-aware":[143],"resource":[144],"in":[146],"networks.":[149]},"counts_by_year":[],"updated_date":"2026-06-13T06:13:01.061226","created_date":"2026-06-03T00:00:00"}
