{"id":"https://openalex.org/W7138943207","doi":"https://doi.org/10.1109/globecom59602.2025.11431740","title":"Handover Algorithm for Achieving Ubiquitous Connectivity in D2C Satellite Systems","display_name":"Handover Algorithm for Achieving Ubiquitous Connectivity in D2C Satellite Systems","publication_year":2025,"publication_date":"2025-12-08","ids":{"openalex":"https://openalex.org/W7138943207","doi":"https://doi.org/10.1109/globecom59602.2025.11431740"},"language":null,"primary_location":{"id":"doi:10.1109/globecom59602.2025.11431740","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom59602.2025.11431740","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2025 - 2025 IEEE Global Communications Conference","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/A5022720542","display_name":"Warangrat Wiriya","orcid":"https://orcid.org/0000-0001-6594-4510"},"institutions":[{"id":"https://openalex.org/I1301041018","display_name":"Rakuten (Japan)","ror":"https://ror.org/0098kke80","country_code":"JP","type":"company","lineage":["https://openalex.org/I1301041018"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Warangrat Wiriya","raw_affiliation_strings":["Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan","institution_ids":["https://openalex.org/I1301041018"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130161024","display_name":"Ryusuke Utsunomiya","orcid":null},"institutions":[{"id":"https://openalex.org/I1301041018","display_name":"Rakuten (Japan)","ror":"https://ror.org/0098kke80","country_code":"JP","type":"company","lineage":["https://openalex.org/I1301041018"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryusuke Utsunomiya","raw_affiliation_strings":["Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan","institution_ids":["https://openalex.org/I1301041018"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130196733","display_name":"Mokoto Ono","orcid":null},"institutions":[{"id":"https://openalex.org/I1301041018","display_name":"Rakuten (Japan)","ror":"https://ror.org/0098kke80","country_code":"JP","type":"company","lineage":["https://openalex.org/I1301041018"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mokoto Ono","raw_affiliation_strings":["Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan","institution_ids":["https://openalex.org/I1301041018"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129872863","display_name":"Hyungmin Ha","orcid":null},"institutions":[{"id":"https://openalex.org/I1301041018","display_name":"Rakuten (Japan)","ror":"https://ror.org/0098kke80","country_code":"JP","type":"company","lineage":["https://openalex.org/I1301041018"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hyungmin Ha","raw_affiliation_strings":["Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan","institution_ids":["https://openalex.org/I1301041018"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5117490827","display_name":"Ryoji Osaka","orcid":null},"institutions":[{"id":"https://openalex.org/I1301041018","display_name":"Rakuten (Japan)","ror":"https://ror.org/0098kke80","country_code":"JP","type":"company","lineage":["https://openalex.org/I1301041018"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryoji Osaka","raw_affiliation_strings":["Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rakuten Mobile, Inc.,NTN Business Strategy Dept.,Tokyo,Japan","institution_ids":["https://openalex.org/I1301041018"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I1301041018"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.82628018,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"5036","last_page":"5042"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9889000058174133,"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":0.9889000058174133,"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.001500000013038516,"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"}},{"id":"https://openalex.org/T12079","display_name":"IoT Networks and Protocols","score":0.00139999995008111,"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/bipartite-graph","display_name":"Bipartite graph","score":0.677299976348877},{"id":"https://openalex.org/keywords/handover","display_name":"Handover","score":0.5673999786376953},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.5403000116348267},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.48899999260902405},{"id":"https://openalex.org/keywords/default-gateway","display_name":"Default gateway","score":0.4697999954223633},{"id":"https://openalex.org/keywords/satellite-constellation","display_name":"Satellite constellation","score":0.4259999990463257},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.41609999537467957},{"id":"https://openalex.org/keywords/constellation","display_name":"Constellation","score":0.38449999690055847},{"id":"https://openalex.org/keywords/communications-satellite","display_name":"Communications satellite","score":0.3767000138759613}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8216999769210815},{"id":"https://openalex.org/C197657726","wikidata":"https://www.wikidata.org/wiki/Q174733","display_name":"Bipartite graph","level":3,"score":0.677299976348877},{"id":"https://openalex.org/C111852164","wikidata":"https://www.wikidata.org/wiki/Q1414679","display_name":"Handover","level":2,"score":0.5673999786376953},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5491999983787537},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.5403000116348267},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5228999853134155},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.48899999260902405},{"id":"https://openalex.org/C187713609","wikidata":"https://www.wikidata.org/wiki/Q2465461","display_name":"Default gateway","level":2,"score":0.4697999954223633},{"id":"https://openalex.org/C2779784338","wikidata":"https://www.wikidata.org/wiki/Q967145","display_name":"Satellite constellation","level":3,"score":0.4259999990463257},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.41620001196861267},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.41609999537467957},{"id":"https://openalex.org/C70352696","wikidata":"https://www.wikidata.org/wiki/Q8928","display_name":"Constellation","level":2,"score":0.38449999690055847},{"id":"https://openalex.org/C121308736","wikidata":"https://www.wikidata.org/wiki/Q149918","display_name":"Communications satellite","level":3,"score":0.3767000138759613},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.3540000021457672},{"id":"https://openalex.org/C2778753846","wikidata":"https://www.wikidata.org/wiki/Q6554239","display_name":"Link (geometry)","level":2,"score":0.3427000045776367},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3278000056743622},{"id":"https://openalex.org/C116537","wikidata":"https://www.wikidata.org/wiki/Q2169973","display_name":"Service provider","level":3,"score":0.32659998536109924},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.303600013256073},{"id":"https://openalex.org/C106516650","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm design","level":2,"score":0.29760000109672546},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.2921000123023987},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2913999855518341},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.2847000062465668},{"id":"https://openalex.org/C2777710495","wikidata":"https://www.wikidata.org/wiki/Q5527195","display_name":"Gateway (web page)","level":2,"score":0.2648000121116638},{"id":"https://openalex.org/C140781008","wikidata":"https://www.wikidata.org/wiki/Q1221081","display_name":"Service quality","level":3,"score":0.26330000162124634},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.25940001010894775},{"id":"https://openalex.org/C3018263672","wikidata":"https://www.wikidata.org/wiki/Q1296251","display_name":"Efficient algorithm","level":2,"score":0.25440001487731934},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.2506999969482422}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/globecom59602.2025.11431740","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom59602.2025.11431740","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2025 - 2025 IEEE Global Communications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","score":0.4497755765914917,"display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W2399586126","https://openalex.org/W3016845705","https://openalex.org/W3039926787","https://openalex.org/W3133077107","https://openalex.org/W3152725543","https://openalex.org/W4315777592"],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"presents":[2],"a":[3,47,53,115],"novel":[4],"handover":[5],"algorithm":[6,81,127],"designed":[7],"to":[8,73,104,136,146],"address":[9],"the":[10,31,41,89,101,106,125,140],"challenges":[11],"of":[12,77],"ubiquitous":[13],"connectivity":[14],"in":[15,88,100,109],"LEO-based":[16],"Direct-to-Cell":[17],"(D2C)":[18],"satellite":[19,61,117],"systems,":[20],"specifically":[21],"focusing":[22],"on":[23,114],"maximizing":[24],"both":[25,78,83],"coverage":[26,84,133],"and":[27,43,60,68,85,97,119,138],"link":[28,86,91,103],"quality":[29,87],"across":[30,149],"service":[32,42,90,110],"area.":[33],"Unlike":[34],"existing":[35],"approaches,":[36],"our":[37],"method":[38],"jointly":[39],"optimizes":[40],"feeder":[44,102],"links":[45],"for":[46],"more":[48],"realistic":[49],"solution.":[50],"We":[51],"propose":[52],"new":[54],"bipartite":[55,71],"graph":[56],"structure,":[57],"representing":[58],"satellites":[59],"ground":[62],"cells":[63],"aligned":[64],"with":[65],"earth-fixed":[66],"beams,":[67],"utilize":[69],"two":[70],"graphs":[72],"enable":[74],"simultaneous":[75],"optimization":[76],"links.":[79],"The":[80],"maximizes":[82],"while":[92],"determining":[93],"optimal":[94],"gateway":[95,130],"locations":[96],"antenna":[98],"numbers":[99],"support":[105],"maximization":[107],"targets":[108],"link.":[111],"Simulations":[112],"based":[113],"Walker-Delta":[116],"constellation":[118],"real":[120],"map-based":[121],"scenarios":[122],"demonstrate":[123],"that":[124],"proposed":[126],"outperforms":[128],"random":[129],"placement,":[131],"improving":[132],"by":[134,143],"up":[135,145],"4%":[137],"increasing":[139],"average":[141],"SNR":[142],"approximately":[144],"3":[147],"dB":[148],"all":[150],"cells.":[151]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2026-03-20T00:00:00"}