{"id":"https://openalex.org/W4410343015","doi":"https://doi.org/10.1109/tccn.2025.3569603","title":"Spectral-Efficient Dynamic User Association in LEO Satellite Constellation-HAPS Cooperative Networks","display_name":"Spectral-Efficient Dynamic User Association in LEO Satellite Constellation-HAPS Cooperative Networks","publication_year":2025,"publication_date":"2025-05-13","ids":{"openalex":"https://openalex.org/W4410343015","doi":"https://doi.org/10.1109/tccn.2025.3569603"},"language":"en","primary_location":{"id":"doi:10.1109/tccn.2025.3569603","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tccn.2025.3569603","pdf_url":null,"source":{"id":"https://openalex.org/S2484188435","display_name":"IEEE Transactions on Cognitive Communications and Networking","issn_l":"2332-7731","issn":["2332-7731","2372-2045"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Cognitive Communications and Networking","raw_type":"journal-article"},"type":"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":null,"display_name":"Kazuma Mashiko","orcid":"https://orcid.org/0009-0001-1594-2135"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kazuma Mashiko","raw_affiliation_strings":["Graduate School of Information Sciences, Tohoku University, Sendai, Japan","Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan"],"raw_orcid":"https://orcid.org/0009-0001-1594-2135","affiliations":[{"raw_affiliation_string":"Graduate School of Information Sciences, Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001340993","display_name":"Hiroaki Hashida","orcid":"https://orcid.org/0000-0001-9633-6796"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroaki Hashida","raw_affiliation_strings":["Graduate School of Information Sciences, Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan","Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan"],"raw_orcid":"https://orcid.org/0000-0001-9633-6796","affiliations":[{"raw_affiliation_string":"Graduate School of Information Sciences, Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101772913","display_name":"Yuichi Kawamoto","orcid":"https://orcid.org/0000-0002-5290-6520"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuichi Kawamoto","raw_affiliation_strings":["Graduate School of Information Sciences, Tohoku University, Sendai, Japan","Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan"],"raw_orcid":"https://orcid.org/0000-0002-5290-6520","affiliations":[{"raw_affiliation_string":"Graduate School of Information Sciences, Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013311265","display_name":"Nei Kato","orcid":"https://orcid.org/0000-0001-8769-302X"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Nei Kato","raw_affiliation_strings":["Graduate School of Information Sciences, Tohoku University, Sendai, Japan","Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan"],"raw_orcid":"https://orcid.org/0000-0001-8769-302X","affiliations":[{"raw_affiliation_string":"Graduate School of Information Sciences, Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Graduate School of Information Sciences (GSIS), Tohoku University, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056090755","display_name":"Kohei Yoshida","orcid":null},"institutions":[{"id":"https://openalex.org/I118347220","display_name":"NEC (Japan)","ror":"https://ror.org/04jndar25","country_code":"JP","type":"company","lineage":["https://openalex.org/I118347220"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kohei Yoshida","raw_affiliation_strings":["Advanced Network Research Laboratories, NEC Corporation, Kawasaki, Japan"],"raw_orcid":"https://orcid.org/0009-0008-2166-585X","affiliations":[{"raw_affiliation_string":"Advanced Network Research Laboratories, NEC Corporation, Kawasaki, Japan","institution_ids":["https://openalex.org/I118347220"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048533663","display_name":"Masayuki Ariyoshi","orcid":null},"institutions":[{"id":"https://openalex.org/I118347220","display_name":"NEC (Japan)","ror":"https://ror.org/04jndar25","country_code":"JP","type":"company","lineage":["https://openalex.org/I118347220"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masayuki Ariyoshi","raw_affiliation_strings":["Advanced Network Research Laboratories, NEC Corporation, Kawasaki, Japan"],"raw_orcid":"https://orcid.org/0009-0002-7504-2128","affiliations":[{"raw_affiliation_string":"Advanced Network Research Laboratories, NEC Corporation, Kawasaki, Japan","institution_ids":["https://openalex.org/I118347220"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":16.8128,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.98607072,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":98},"biblio":{"volume":"12","issue":null,"first_page":"796","last_page":"804"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9965000152587891,"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/T12042","display_name":"Satellite Communication Systems","score":0.9965000152587891,"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/T12449","display_name":"Spacecraft Design and Technology","score":0.9545999765396118,"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/T10715","display_name":"Distributed and Parallel Computing Systems","score":0.9419000148773193,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8029276132583618},{"id":"https://openalex.org/keywords/constellation","display_name":"Constellation","score":0.7669169902801514},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.6245773434638977},{"id":"https://openalex.org/keywords/satellite-constellation","display_name":"Satellite constellation","score":0.6179758310317993},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.5701212286949158},{"id":"https://openalex.org/keywords/association","display_name":"Association (psychology)","score":0.5049298405647278},{"id":"https://openalex.org/keywords/communications-satellite","display_name":"Communications satellite","score":0.4612976014614105},{"id":"https://openalex.org/keywords/low-earth-orbit","display_name":"Low earth orbit","score":0.4592978060245514},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.39150750637054443},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.07571783661842346}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8029276132583618},{"id":"https://openalex.org/C70352696","wikidata":"https://www.wikidata.org/wiki/Q8928","display_name":"Constellation","level":2,"score":0.7669169902801514},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.6245773434638977},{"id":"https://openalex.org/C2779784338","wikidata":"https://www.wikidata.org/wiki/Q967145","display_name":"Satellite constellation","level":3,"score":0.6179758310317993},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5701212286949158},{"id":"https://openalex.org/C142853389","wikidata":"https://www.wikidata.org/wiki/Q744778","display_name":"Association (psychology)","level":2,"score":0.5049298405647278},{"id":"https://openalex.org/C121308736","wikidata":"https://www.wikidata.org/wiki/Q149918","display_name":"Communications satellite","level":3,"score":0.4612976014614105},{"id":"https://openalex.org/C3018325918","wikidata":"https://www.wikidata.org/wiki/Q663611","display_name":"Low earth orbit","level":3,"score":0.4592978060245514},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.39150750637054443},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.07571783661842346},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","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/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"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":1,"locations":[{"id":"doi:10.1109/tccn.2025.3569603","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tccn.2025.3569603","pdf_url":null,"source":{"id":"https://openalex.org/S2484188435","display_name":"IEEE Transactions on Cognitive Communications and Networking","issn_l":"2332-7731","issn":["2332-7731","2372-2045"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Cognitive Communications and Networking","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W2021986135","https://openalex.org/W2109815475","https://openalex.org/W2136253824","https://openalex.org/W2511038469","https://openalex.org/W2954515563","https://openalex.org/W3042793520","https://openalex.org/W3081243160","https://openalex.org/W3089089250","https://openalex.org/W3089706104","https://openalex.org/W3120420594","https://openalex.org/W3156195074","https://openalex.org/W3163044580","https://openalex.org/W3179283102","https://openalex.org/W3186924130","https://openalex.org/W3189778133","https://openalex.org/W3212813280","https://openalex.org/W3213889621","https://openalex.org/W4207063909","https://openalex.org/W4280608146","https://openalex.org/W4285118548","https://openalex.org/W4289824408","https://openalex.org/W4295015997","https://openalex.org/W4313307866","https://openalex.org/W4320016642","https://openalex.org/W4321488670","https://openalex.org/W4385221014","https://openalex.org/W4388709732","https://openalex.org/W4388757450","https://openalex.org/W4389317746","https://openalex.org/W4389610350","https://openalex.org/W4391742904","https://openalex.org/W4396852938","https://openalex.org/W4400409694","https://openalex.org/W4400645060","https://openalex.org/W4402159866","https://openalex.org/W4402830225"],"related_works":["https://openalex.org/W2385787340","https://openalex.org/W2394459062","https://openalex.org/W2392670398","https://openalex.org/W4221033466","https://openalex.org/W4224313018","https://openalex.org/W2355913771","https://openalex.org/W2000326185","https://openalex.org/W2092836983","https://openalex.org/W2082154508","https://openalex.org/W2141661339"],"abstract_inverted_index":{"The":[0],"demand":[1],"for":[2,30],"6G":[3],"wireless":[4],"networks":[5,11],"requires":[6],"global,":[7],"high-capacity":[8],"coverage.":[9],"Non\u2011terrestrial":[10],"using":[12],"the":[13,19,60],"low-earth":[14],"orbit":[15],"(LEO)":[16],"satellites":[17,83],"and":[18,59,84,91],"high-altitude":[20],"platform":[21],"station":[22],"(HAPS)":[23],"are":[24],"promising":[25],"solutions.":[26],"Although":[27],"originally":[28],"designed":[29],"limited":[31],"applications,":[32],"evolving":[33],"applications":[34],"now":[35],"require":[36],"more":[37],"efficient":[38],"use":[39],"of":[40,63],"spectrum.":[41],"Previous":[42],"works":[43],"have":[44],"focused":[45],"on":[46],"HAPS":[47,64,85],"relay":[48],"links,":[49],"but":[50],"integrating":[51],"satellite\u2013ground":[52],"direct":[53],"links":[54],"introduces":[55],"new":[56],"coordination":[57],"challenges":[58],"static":[61],"nature":[62],"coverage":[65],"can":[66],"be":[67],"inefficient.":[68],"To":[69],"overcome":[70],"these":[71],"issues,":[72],"we":[73],"propose":[74],"a":[75],"downlink":[76],"user":[77],"association":[78],"method":[79,104],"that":[80],"leverages":[81],"LEO":[82],"by":[86],"optimizing":[87],"instantaneous":[88],"link":[89],"sets":[90],"adaptive":[92],"long\u2011term":[93],"switching":[94],"control":[95],"to":[96],"maximize":[97],"spectral":[98],"efficiency.":[99],"Simulation":[100],"results":[101],"show":[102],"our":[103],"outperforms":[105],"conventional":[106],"distance\u2011based":[107],"or":[108],"fixed\u2011interval":[109],"approaches.":[110]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":3}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}
