{"id":"https://openalex.org/W4404293870","doi":"https://doi.org/10.1109/twc.2024.3491794","title":"Ultra-Dense LEO-MEO Constellation Integrated 6G: A Distributed Hierarchical Mobility Management Approach","display_name":"Ultra-Dense LEO-MEO Constellation Integrated 6G: A Distributed Hierarchical Mobility Management Approach","publication_year":2024,"publication_date":"2024-11-12","ids":{"openalex":"https://openalex.org/W4404293870","doi":"https://doi.org/10.1109/twc.2024.3491794"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2024.3491794","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3491794","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless Communications","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":"https://openalex.org/A5045813288","display_name":"Xiaohan Qin","orcid":"https://orcid.org/0000-0002-5199-8865"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaohan Qin","raw_affiliation_strings":["School of Electronic Science and Engineering, Nanjing University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113935204","display_name":"Ting Ma","orcid":"https://orcid.org/0009-0001-7404-6760"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ting Ma","raw_affiliation_strings":["School of Electronic Science and Engineering, Nanjing University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100327630","display_name":"Xin Zhang","orcid":"https://orcid.org/0009-0003-9288-8931"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xin Zhang","raw_affiliation_strings":["School of Electronic Science and Engineering, Nanjing University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100781532","display_name":"Yilei Wang","orcid":"https://orcid.org/0000-0001-8610-8044"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yilei Wang","raw_affiliation_strings":["School of Electronic Science and Engineering, Nanjing University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043286765","display_name":"Haibo Zhou","orcid":"https://orcid.org/0000-0002-6549-8917"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Haibo Zhou","raw_affiliation_strings":["School of Electronic Science and Engineering, Nanjing University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100765829","display_name":"Lian Zhao","orcid":"https://orcid.org/0000-0002-5602-1738"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lian Zhao","raw_affiliation_strings":["Department of Electrical, Computer, Biomedical Engineering, Toronto Metropolitian University, Toronto, ON, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical, Computer, Biomedical Engineering, Toronto Metropolitian University, Toronto, ON, Canada","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5045813288"],"corresponding_institution_ids":["https://openalex.org/I881766915"],"apc_list":null,"apc_paid":null,"fwci":11.7406,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.98011821,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"24","issue":"1","first_page":"323","last_page":"339"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9990000128746033,"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":0.9990000128746033,"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/T13905","display_name":"Telecommunications and Broadcasting Technologies","score":0.994700014591217,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9678000211715698,"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/constellation","display_name":"Constellation","score":0.8221138119697571},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6053243279457092},{"id":"https://openalex.org/keywords/mobility-management","display_name":"Mobility management","score":0.4766826629638672},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.45597824454307556},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.4441505968570709},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.42730897665023804},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.12669557332992554}],"concepts":[{"id":"https://openalex.org/C70352696","wikidata":"https://www.wikidata.org/wiki/Q8928","display_name":"Constellation","level":2,"score":0.8221138119697571},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6053243279457092},{"id":"https://openalex.org/C2778555145","wikidata":"https://www.wikidata.org/wiki/Q4476379","display_name":"Mobility management","level":2,"score":0.4766826629638672},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.45597824454307556},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.4441505968570709},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.42730897665023804},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12669557332992554},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2024.3491794","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3491794","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8829865417","display_name":null,"funder_award_id":"2020YFB1806104","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"}],"funders":[{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":41,"referenced_works":["https://openalex.org/W2135586497","https://openalex.org/W2145406480","https://openalex.org/W2154614041","https://openalex.org/W2268062820","https://openalex.org/W2601189230","https://openalex.org/W2755081985","https://openalex.org/W2944741907","https://openalex.org/W2954053521","https://openalex.org/W2955611229","https://openalex.org/W2973894321","https://openalex.org/W2989762614","https://openalex.org/W3005971024","https://openalex.org/W3023314828","https://openalex.org/W3045983716","https://openalex.org/W3093542108","https://openalex.org/W3133340445","https://openalex.org/W3194355993","https://openalex.org/W4223506633","https://openalex.org/W4285188347","https://openalex.org/W4293250394","https://openalex.org/W4296870955","https://openalex.org/W4297911806","https://openalex.org/W4301184599","https://openalex.org/W4312458537","https://openalex.org/W4312580763","https://openalex.org/W4312886305","https://openalex.org/W4312943172","https://openalex.org/W4312984034","https://openalex.org/W4313427414","https://openalex.org/W4313588559","https://openalex.org/W4315630022","https://openalex.org/W4317418981","https://openalex.org/W4320015795","https://openalex.org/W4322731167","https://openalex.org/W4327796565","https://openalex.org/W4387010859","https://openalex.org/W4387870284","https://openalex.org/W4388469643","https://openalex.org/W4390534264","https://openalex.org/W4393207493","https://openalex.org/W4398150752"],"related_works":["https://openalex.org/W2801080295","https://openalex.org/W2502457263","https://openalex.org/W4322709807","https://openalex.org/W1524310721","https://openalex.org/W2149742668","https://openalex.org/W2411308974","https://openalex.org/W1995909709","https://openalex.org/W1880030460","https://openalex.org/W3150263558","https://openalex.org/W2056453479"],"abstract_inverted_index":{"The":[0],"booming":[1],"renaissance":[2],"and":[3,37,53,61,69,110,136,144,168,175,192,209],"rapid":[4],"development":[5],"of":[6,72,85,189,206,215],"ultra-dense":[7],"low":[8],"earth":[9],"orbit":[10,92],"(LEO)":[11],"satellite":[12,145],"networks":[13],"(UD-LSNs)":[14],"are":[15,120],"envisioned":[16],"to":[17,105,128,154],"realize":[18],"a":[19,89],"giant":[20],"leap":[21],"forward":[22],"for":[23,34,41,122],"the":[24,46,66,82,107,115,126,140,148,159,173,184,198,204,211,216],"future":[25],"sixth":[26],"generation":[27],"(6G)":[28],"coverage":[29,56],"expansion,":[30],"bridging":[31],"digital":[32],"divide":[33],"remote":[35],"areas":[36],"providing":[38],"continuous":[39],"services":[40],"user":[42,141,152],"terminals":[43],"worldwide.":[44],"However,":[45],"inherent":[47],"dual":[48],"mobility,":[49],"massive":[50],"access":[51],"scenarios":[52,124],"highly":[54],"overlapped":[55],"may":[57],"trigger":[58],"frequent,":[59],"vast":[60],"ping-pong":[62],"handovers,":[63],"especially":[64],"with":[65,101],"existing":[67],"limited":[68],"fixed":[70],"deployment":[71],"terrestrial":[73],"mobility":[74,97,142],"functional":[75],"entity.":[76],"To":[77],"this":[78],"end,":[79],"by":[80],"exploiting":[81],"unique":[83],"opportunity":[84],"UD-LSNs,":[86,202],"we":[87,178],"devise":[88],"medium":[90],"Earth":[91],"(MEO)":[93],"assisted":[94],"distributed":[95],"hierarchical":[96],"management":[98],"architecture":[99],"(HDMMA)":[100],"flexible":[102],"function":[103],"configuration":[104],"adapt":[106],"high":[108],"dynamic":[109],"large":[111],"scale":[112],"network.":[113],"Subsequently,":[114],"lightweight":[116],"handover":[117,135,150,161,170,193,199,212],"procedures":[118],"(LHPs)":[119],"proposed":[121,185,217],"two":[123],"under":[125],"HDMMA":[127,208],"ensure":[129],"service":[130],"continuity,":[131],"that":[132],"is":[133,162],"on-orbit":[134,149],"off-orbit":[137,160],"handover.":[138],"Considering":[139],"attributes":[143],"available":[146],"resources,":[147],"introduces":[151],"aggregate":[153],"share":[155],"signaling":[156,190],"overhead,":[157],"while":[158],"further":[163],"classified":[164],"into":[165],"intra-cluster,":[166],"inter-cluster":[167],"inter-group":[169],"based":[171],"on":[172,183],"clustering":[174],"grouping.":[176],"Furthermore,":[177],"conduct":[179],"theoretical":[180],"analysis":[181],"model":[182],"LHP":[186],"in":[187,201],"terms":[188],"overhead":[191],"latency.":[194],"Simulation":[195],"results":[196],"verify":[197],"characteristics":[200],"illustrate":[203],"superiority":[205],"our":[207],"demonstrate":[210],"performance":[213],"improvement":[214],"LHP.":[218]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":7}],"updated_date":"2026-03-27T14:29:43.386196","created_date":"2025-10-10T00:00:00"}
