{"id":"https://openalex.org/W7161148638","doi":"https://doi.org/10.48550/arxiv.2605.12681","title":"Toward Communication-Efficient Space Data Centers: Bottlenecks, Architectures, and New Paradigms","display_name":"Toward Communication-Efficient Space Data Centers: Bottlenecks, Architectures, and New Paradigms","publication_year":2026,"publication_date":"2026-05-12","ids":{"openalex":"https://openalex.org/W7161148638","doi":"https://doi.org/10.48550/arxiv.2605.12681"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2605.12681","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.12681","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2605.12681","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5136101028","display_name":"Minghao Sun","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sun, Minghao","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136130602","display_name":"Zehui Chen","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chen, Zehui","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136105515","display_name":"Jinbo Hou","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hou, Jinbo","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022523766","display_name":"Kezhi Wang","orcid":"https://orcid.org/0000-0001-8602-0800"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wang, Kezhi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5136156193","display_name":"Xiaoli Chu","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chu, Xiaoli","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12449","display_name":"Spacecraft Design and Technology","score":0.3474000096321106,"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/T12449","display_name":"Spacecraft Design and Technology","score":0.3474000096321106,"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/T12042","display_name":"Satellite Communication Systems","score":0.14730000495910645,"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/T13200","display_name":"Spacecraft and Cryogenic Technologies","score":0.11180000007152557,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6682000160217285},{"id":"https://openalex.org/keywords/raw-data","display_name":"Raw data","score":0.5033000111579895},{"id":"https://openalex.org/keywords/efficient-energy-use","display_name":"Efficient energy use","score":0.4715999960899353},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.41929998993873596},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.3959999978542328},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.391400009393692},{"id":"https://openalex.org/keywords/data-as-a-service","display_name":"Data as a service","score":0.3723999857902527},{"id":"https://openalex.org/keywords/data-exchange","display_name":"Data exchange","score":0.3409999907016754}],"concepts":[{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6682000160217285},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6646999716758728},{"id":"https://openalex.org/C132964779","wikidata":"https://www.wikidata.org/wiki/Q2110223","display_name":"Raw data","level":2,"score":0.5033000111579895},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.4715999960899353},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.45809999108314514},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.41929998993873596},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.3959999978542328},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.391400009393692},{"id":"https://openalex.org/C97300177","wikidata":"https://www.wikidata.org/wiki/Q1994744","display_name":"Data as a service","level":3,"score":0.3723999857902527},{"id":"https://openalex.org/C15845906","wikidata":"https://www.wikidata.org/wiki/Q1172338","display_name":"Data exchange","level":2,"score":0.3409999907016754},{"id":"https://openalex.org/C189693848","wikidata":"https://www.wikidata.org/wiki/Q6031064","display_name":"Information exchange","level":2,"score":0.3393000066280365},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.33329999446868896},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3328000009059906},{"id":"https://openalex.org/C90312973","wikidata":"https://www.wikidata.org/wiki/Q7449052","display_name":"Semantic data model","level":2,"score":0.3287000060081482},{"id":"https://openalex.org/C2779965156","wikidata":"https://www.wikidata.org/wiki/Q5227350","display_name":"Data sharing","level":3,"score":0.31850001215934753},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.30889999866485596},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.29589998722076416},{"id":"https://openalex.org/C67186912","wikidata":"https://www.wikidata.org/wiki/Q367664","display_name":"Data modeling","level":2,"score":0.2953999936580658},{"id":"https://openalex.org/C75684735","wikidata":"https://www.wikidata.org/wiki/Q858810","display_name":"Big data","level":2,"score":0.29409998655319214},{"id":"https://openalex.org/C2778464652","wikidata":"https://www.wikidata.org/wiki/Q309849","display_name":"Open research","level":2,"score":0.28859999775886536},{"id":"https://openalex.org/C47487241","wikidata":"https://www.wikidata.org/wiki/Q5227230","display_name":"Data access","level":2,"score":0.2874999940395355},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.28690001368522644},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.2718999981880188},{"id":"https://openalex.org/C192126672","wikidata":"https://www.wikidata.org/wiki/Q1068715","display_name":"Telecommunications network","level":2,"score":0.2623000144958496},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.25189998745918274},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.250900000333786}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2605.12681","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.12681","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2605.12681","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.12681","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","score":0.6458764672279358,"display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"The":[0,72,128,161],"rapid":[1],"growth":[2],"of":[3,87,119,130,140,147],"foundation":[4],"model":[5],"training":[6],"and":[7,26,50,62,83,103,150,158],"large-scale":[8],"AI":[9,133],"services":[10],"has":[11],"driven":[12],"ground":[13,56,80],"data":[14,77,81],"centers":[15,82],"toward":[16,168],"unprecedented":[17],"power":[18,61],"densities,":[19],"intensifying":[20],"challenges":[21,167],"in":[22,44,79,100],"energy":[23,49,157],"supply,":[24],"cooling,":[25],"spatial":[27],"scalability.":[28],"Space":[29],"Data":[30],"Centers":[31],"(SDCs)":[32],"have":[33],"emerged":[34],"as":[35,107],"a":[36,91,108,141],"promising":[37],"paradigm":[38],"for":[39],"hosting":[40],"energy-intensive":[41],"computing":[42,152],"infrastructures":[43,134],"orbit,":[45],"leveraging":[46],"continuous":[47],"solar":[48],"radiative":[51],"cooling":[52],"advantages.":[53],"However,":[54],"unlike":[55],"facilities":[57],"primarily":[58],"constrained":[59],"by":[60,69],"site":[63],"availability,":[64],"SDCs":[65],"are":[66],"fundamentally":[67],"limited":[68],"communication":[70,98,106],"capability.":[71],"gap":[73],"between":[74],"petabit-scale":[75],"internal":[76],"exchange":[78],"the":[84,138],"gigabit-scale":[85],"capacity":[86],"ground-space":[88],"links":[89],"forms":[90],"critical":[92],"bottleneck.":[93],"This":[94],"article":[95,162],"systematically":[96],"analyzes":[97],"constraints":[99],"SDC":[101,144],"architectures":[102],"explores":[104],"semantic":[105,116],"key":[109],"enabling":[110],"paradigm.":[111],"By":[112],"transmitting":[113],"compact,":[114],"task-relevant":[115],"representations":[117],"instead":[118],"raw":[120],"data,":[121],"uplink":[122],"pressure":[123],"can":[124],"be":[125],"substantially":[126],"reduced.":[127],"feasibility":[129],"communication-efficient":[131],"orbital":[132,151],"is":[135],"demonstrated":[136],"through":[137],"evaluation":[139],"multi-layer":[142],"heterogeneous":[143],"framework":[145],"consisting":[146],"relay":[148],"satellites":[149],"nodes":[153],"operating":[154],"under":[155],"coupled":[156],"thermal":[159],"constraints.":[160],"further":[163],"outlines":[164],"open":[165],"research":[166],"scalable":[169],"deployment.":[170]},"counts_by_year":[],"updated_date":"2026-07-01T06:00:48.157686","created_date":"2026-05-15T00:00:00"}
