{"id":"https://openalex.org/W4402968235","doi":"https://doi.org/10.1109/jsac.2024.3459021","title":"Energy-Efficient Hierarchical Collaborative Learning Over LEO Satellite Constellations","display_name":"Energy-Efficient Hierarchical Collaborative Learning Over LEO Satellite Constellations","publication_year":2024,"publication_date":"2024-09-30","ids":{"openalex":"https://openalex.org/W4402968235","doi":"https://doi.org/10.1109/jsac.2024.3459021"},"language":"en","primary_location":{"id":"doi:10.1109/jsac.2024.3459021","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2024.3459021","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in 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/A5015538526","display_name":"Long Luo","orcid":"https://orcid.org/0000-0003-1028-8178"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Long Luo","raw_affiliation_strings":["University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5116644744","display_name":"Chi Zhang","orcid":"https://orcid.org/0009-0000-2738-2131"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chi Zhang","raw_affiliation_strings":["University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101507232","display_name":"Hongfang Yu","orcid":"https://orcid.org/0000-0002-5219-1780"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongfang Yu","raw_affiliation_strings":["University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022284072","display_name":"Zonghang Li","orcid":"https://orcid.org/0000-0002-2796-039X"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zonghang Li","raw_affiliation_strings":["University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053945147","display_name":"Gang Sun","orcid":"https://orcid.org/0000-0002-2448-8915"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Gang Sun","raw_affiliation_strings":["University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5075454046","display_name":"Shouxi Luo","orcid":"https://orcid.org/0000-0002-4041-3681"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]},{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shouxi Luo","raw_affiliation_strings":["Southwest Jiaotong University, Chengdu, China","University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]},{"raw_affiliation_string":"University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5015538526"],"corresponding_institution_ids":["https://openalex.org/I150229711"],"apc_list":null,"apc_paid":null,"fwci":3.7807,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.92753777,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":100},"biblio":{"volume":"42","issue":"12","first_page":"3366","last_page":"3379"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9993000030517578,"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":0.9993000030517578,"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":0.9406999945640564,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9000999927520752,"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/computer-science","display_name":"Computer science","score":0.8189228177070618},{"id":"https://openalex.org/keywords/constellation","display_name":"Constellation","score":0.7229015827178955},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.6378544569015503},{"id":"https://openalex.org/keywords/satellite-constellation","display_name":"Satellite constellation","score":0.5301585793495178},{"id":"https://openalex.org/keywords/satellite-broadcasting","display_name":"Satellite broadcasting","score":0.46591711044311523},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.4652723968029022},{"id":"https://openalex.org/keywords/communications-satellite","display_name":"Communications satellite","score":0.46460312604904175},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.37522387504577637},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3734428286552429},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.11458781361579895},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.09038513898849487}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8189228177070618},{"id":"https://openalex.org/C70352696","wikidata":"https://www.wikidata.org/wiki/Q8928","display_name":"Constellation","level":2,"score":0.7229015827178955},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.6378544569015503},{"id":"https://openalex.org/C2779784338","wikidata":"https://www.wikidata.org/wiki/Q967145","display_name":"Satellite constellation","level":3,"score":0.5301585793495178},{"id":"https://openalex.org/C2986254709","wikidata":"https://www.wikidata.org/wiki/Q209588","display_name":"Satellite broadcasting","level":3,"score":0.46591711044311523},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.4652723968029022},{"id":"https://openalex.org/C121308736","wikidata":"https://www.wikidata.org/wiki/Q149918","display_name":"Communications satellite","level":3,"score":0.46460312604904175},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.37522387504577637},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3734428286552429},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.11458781361579895},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.09038513898849487},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","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},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jsac.2024.3459021","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2024.3459021","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.8399999737739563}],"awards":[{"id":"https://openalex.org/G5223361291","display_name":null,"funder_award_id":"62394324","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G709155833","display_name":null,"funder_award_id":"62102066","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G787783157","display_name":null,"funder_award_id":"2023YFB2904600","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W3036597088","https://openalex.org/W3109847748","https://openalex.org/W3118874133","https://openalex.org/W3152952112","https://openalex.org/W3170121482","https://openalex.org/W3197055488","https://openalex.org/W3217299421","https://openalex.org/W4223568641","https://openalex.org/W4225392202","https://openalex.org/W4281710948","https://openalex.org/W4283798991","https://openalex.org/W4285292143","https://openalex.org/W4285302300","https://openalex.org/W4285327707","https://openalex.org/W4307454782","https://openalex.org/W4318619411","https://openalex.org/W4319663761","https://openalex.org/W4320005491","https://openalex.org/W4320005495","https://openalex.org/W4320713367","https://openalex.org/W4321636815","https://openalex.org/W4364297006","https://openalex.org/W4364297008","https://openalex.org/W4375929104","https://openalex.org/W4376456418","https://openalex.org/W4377079726","https://openalex.org/W4379116721","https://openalex.org/W4385338532","https://openalex.org/W4385768131","https://openalex.org/W4385894332","https://openalex.org/W4386453713","https://openalex.org/W4386590671","https://openalex.org/W4386608426","https://openalex.org/W4387415116","https://openalex.org/W4387869602","https://openalex.org/W4387883786","https://openalex.org/W4391020638","https://openalex.org/W4391248729","https://openalex.org/W4391791538","https://openalex.org/W4391892499","https://openalex.org/W4396817396","https://openalex.org/W6728757088","https://openalex.org/W6754416507","https://openalex.org/W6766978945","https://openalex.org/W6779228417","https://openalex.org/W6780501606","https://openalex.org/W6838349824"],"related_works":["https://openalex.org/W2385787340","https://openalex.org/W4224313018","https://openalex.org/W2394459062","https://openalex.org/W2392670398","https://openalex.org/W4221033466","https://openalex.org/W2355913771","https://openalex.org/W4225291832","https://openalex.org/W3209202847","https://openalex.org/W2377622301","https://openalex.org/W4392153104"],"abstract_inverted_index":{"The":[0],"hierarchical":[1],"collaborative":[2],"learning":[3],"within":[4,90],"Low":[5],"Earth":[6],"Orbit":[7],"(LEO)":[8],"satellite":[9,34,55],"constellations,":[10],"termed":[11],"LEO-HCL,":[12],"is":[13],"gaining":[14],"increasing":[15],"popularity":[16],"by":[17,32,54],"integrating":[18],"intra-orbit":[19],"Inter-Satellite":[20],"Links":[21],"and":[22,60,63,86,104,112,132,153,174],"orbital":[23],"edge":[24],"computing":[25,59],"to":[26,69,157],"alleviate":[27],"the":[28,50,91,106,128,136],"latency":[29],"issues":[30],"caused":[31],"intermittent":[33],"connectivity":[35],"in":[36,165,171],"satellite-ground":[37],"training":[38,76,137,172],"architectures.":[39],"However,":[40],"LEO-HCL":[41],"systems":[42],"are":[43],"confronted":[44],"with":[45],"a":[46,98,162,168,175],"triad":[47],"of":[48,101],"challenges:":[49],"variable":[51],"topology":[52],"induced":[53],"mobility,":[56],"limited":[57],"onboard":[58],"communication":[61,178],"resources,":[62],"stringent":[64],"energy":[65,154,166],"constraints.":[66],"In":[67],"response":[68],"these":[70],"challenges,":[71],"we":[72,120],"propose":[73],"an":[74,122],"energy-efficient":[75],"algorithm":[77,124],"called":[78],"FedAAC,":[79],"which":[80],"adaptively":[81],"optimizes":[82],"both":[83],"aggregation":[84,110,130],"frequency":[85,131],"model":[87,102,113],"compression":[88,114,133],"ratio":[89,134],"resource-constrained":[92],"LEO":[93],"network.":[94],"We":[95],"have":[96,141],"conducted":[97],"theoretical":[99],"analysis":[100],"convergence":[103,151],"investigated":[105],"relationship":[107],"between":[108],"convergence,":[109],"frequency,":[111],"ratio.":[115],"Building":[116],"on":[117],"this":[118],"analysis,":[119],"offer":[121],"approximation":[123],"that":[125,143],"dynamically":[126],"calculates":[127],"optimal":[129],"during":[135],"process.":[138],"Extensive":[139],"simulations":[140],"demonstrated":[142],"FedAAC":[144,160],"significantly":[145],"outperforms":[146],"existing":[147],"methods,":[148],"offering":[149],"enhanced":[150],"speed":[152],"efficiency.":[155],"Compared":[156],"prior":[158],"solutions,":[159],"achieves":[161],"60%":[163],"reduction":[164],"consumption,":[167],"70%":[169],"decrease":[170],"time,":[173],"52%":[176],"lower":[177],"overhead.":[179]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":3}],"updated_date":"2025-12-23T23:11:35.936235","created_date":"2025-10-10T00:00:00"}