{"id":"https://openalex.org/W7163689922","doi":"https://doi.org/10.1109/jsac.2026.3700114","title":"Toward Secure and Reliable SAGIN: Learning-Driven Multi-Dimensional Resource Scheduling for Multi-RIS-Assisted OTFS Transmission","display_name":"Toward Secure and Reliable SAGIN: Learning-Driven Multi-Dimensional Resource Scheduling for Multi-RIS-Assisted OTFS Transmission","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7163689922","doi":"https://doi.org/10.1109/jsac.2026.3700114"},"language":null,"primary_location":{"id":"doi:10.1109/jsac.2026.3700114","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2026.3700114","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/A5109781536","display_name":"Zimo Feng","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zimo Feng","raw_affiliation_strings":["College of Electronic Engineering, National University of Defense Technology, Hefei, China"],"raw_orcid":"https://orcid.org/0009-0007-5551-5094","affiliations":[{"raw_affiliation_string":"College of Electronic Engineering, National University of Defense Technology, Hefei, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090744597","display_name":"Zhi Lin","orcid":"https://orcid.org/0000-0003-0011-7383"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhi Lin","raw_affiliation_strings":["College of Electronic Engineering, National University of Defense Technology, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0003-0011-7383","affiliations":[{"raw_affiliation_string":"College of Electronic Engineering, National University of Defense Technology, Hefei, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5137992401","display_name":"Hongjun Wang","orcid":"https://orcid.org/0000-0001-6736-6566"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongjun Wang","raw_affiliation_strings":["College of Electronic Engineering, National University of Defense Technology, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0001-6736-6566","affiliations":[{"raw_affiliation_string":"College of Electronic Engineering, National University of Defense Technology, Hefei, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026108623","display_name":"Ruiqian Ma","orcid":"https://orcid.org/0000-0003-1879-6695"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruiqian Ma","raw_affiliation_strings":["College of Electronic Engineering, National University of Defense Technology, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0003-1879-6695","affiliations":[{"raw_affiliation_string":"College of Electronic Engineering, National University of Defense Technology, Hefei, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5137957281","display_name":"Kang An","orcid":"https://orcid.org/0000-0003-4720-0635"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kang An","raw_affiliation_strings":["Sixty-Third Research Institute, National University of Defense Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-4720-0635","affiliations":[{"raw_affiliation_string":"Sixty-Third Research Institute, National University of Defense Technology, Nanjing, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100654737","display_name":"Yuanzhi He","orcid":"https://orcid.org/0000-0001-6317-3038"},"institutions":[{"id":"https://openalex.org/I4210163234","display_name":"Combined Arms Academy of the Armed Forces of the Russian Federation","ror":"https://ror.org/0567jx130","country_code":"RU","type":"government","lineage":["https://openalex.org/I4210163234"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"Yuanzhi He","raw_affiliation_strings":["32008 Troops of PLA, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-6317-3038","affiliations":[{"raw_affiliation_string":"32008 Troops of PLA, Beijing, China","institution_ids":["https://openalex.org/I4210163234"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.86313827,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"44","issue":null,"first_page":"4848","last_page":"4860"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10767","display_name":"Advanced Photonic Communication Systems","score":0.2597000002861023,"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"}},"topics":[{"id":"https://openalex.org/T10767","display_name":"Advanced Photonic Communication Systems","score":0.2597000002861023,"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"}},{"id":"https://openalex.org/T11873","display_name":"PAPR reduction in OFDM","score":0.24809999763965607,"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"}},{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","score":0.21979999542236328,"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/scheduling","display_name":"Scheduling (production processes)","score":0.6412000060081482},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5002999901771545},{"id":"https://openalex.org/keywords/data-transmission","display_name":"Data transmission","score":0.43880000710487366},{"id":"https://openalex.org/keywords/resource-management","display_name":"Resource management (computing)","score":0.3693000078201294},{"id":"https://openalex.org/keywords/processor-scheduling","display_name":"Processor scheduling","score":0.3569999933242798},{"id":"https://openalex.org/keywords/secure-transmission","display_name":"Secure transmission","score":0.35499998927116394}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8464999794960022},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.6412000060081482},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5871000289916992},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5002999901771545},{"id":"https://openalex.org/C557945733","wikidata":"https://www.wikidata.org/wiki/Q389772","display_name":"Data transmission","level":2,"score":0.43880000710487366},{"id":"https://openalex.org/C2780609101","wikidata":"https://www.wikidata.org/wiki/Q17156588","display_name":"Resource management (computing)","level":2,"score":0.3693000078201294},{"id":"https://openalex.org/C2984822820","wikidata":"https://www.wikidata.org/wiki/Q1123036","display_name":"Processor scheduling","level":3,"score":0.3569999933242798},{"id":"https://openalex.org/C2779814227","wikidata":"https://www.wikidata.org/wiki/Q7444882","display_name":"Secure transmission","level":3,"score":0.35499998927116394},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3294000029563904},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3280999958515167},{"id":"https://openalex.org/C43214815","wikidata":"https://www.wikidata.org/wiki/Q7310987","display_name":"Reliability (semiconductor)","level":3,"score":0.3212999999523163},{"id":"https://openalex.org/C206345919","wikidata":"https://www.wikidata.org/wiki/Q20380951","display_name":"Resource (disambiguation)","level":2,"score":0.3188000023365021},{"id":"https://openalex.org/C29202148","wikidata":"https://www.wikidata.org/wiki/Q287260","display_name":"Resource allocation","level":2,"score":0.26980000734329224},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.2687999904155731},{"id":"https://openalex.org/C3020028006","wikidata":"https://www.wikidata.org/wiki/Q9158","display_name":"Electronic mail","level":2,"score":0.25060001015663147}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jsac.2026.3700114","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2026.3700114","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":[],"awards":[{"id":"https://openalex.org/G100639425","display_name":null,"funder_award_id":"25-ZZCX-JDZ-52","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4081979735","display_name":null,"funder_award_id":"62471477","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"As":[0],"a":[1,47,61,196,202],"key":[2],"component":[3],"of":[4,97,106,130,142],"the":[5,98,102,107,115,126,136,173,188],"space-air-ground":[6],"integrated":[7],"network":[8],"(SAGIN),":[9],"low":[10],"Earth":[11],"orbit":[12],"(LEO)":[13],"satellites":[14],"aim":[15],"to":[16,113],"provide":[17],"global":[18],"coverage":[19],"and":[20,35,68,79,93,101,132,139,176,204,213],"reliable":[21,214],"services":[22],"under":[23],"high-speed":[24],"mobile":[25],"conditions,":[26],"which":[27,170],"are":[28],"critically":[29],"challenged":[30],"by":[31,179],"severe":[32],"Doppler":[33],"effect":[34],"inherent":[36],"broadcast":[37],"security":[38],"threats.":[39],"To":[40],"address":[41],"these":[42],"issues,":[43],"this":[44,110,143],"paper":[45,111],"investigates":[46],"multi-reconfigurable":[48],"intelligent":[49],"surface":[50],"(RIS)-assisted":[51],"orthogonal":[52],"time":[53],"frequency":[54],"space":[55],"(OTFS)":[56],"downlink":[57],"transmission":[58],"system,":[59],"where":[60],"LEO":[62],"satellite":[63,123],"serves":[64],"multiple":[65],"information":[66,78],"receivers":[67,74],"potential":[69],"eavesdroppers":[70],"acting":[71],"as":[72,90],"energy":[73],"via":[75],"simultaneous":[76],"wireless":[77],"power":[80],"transfer":[81],"(SWIPT).":[82],"By":[83],"jointly":[84],"optimizing":[85],"multi-dimensional":[86],"resource":[87,207],"variables,":[88],"such":[89],"transmit":[91,124],"beamforming":[92],"RIS":[94],"reflection":[95],"coefficients":[96],"spatial":[99],"domain,":[100,109],"symbol":[103],"scheduling":[104,208],"matrix":[105],"time-frequency":[108],"aims":[112],"maximize":[114],"sum":[116,198],"secrecy":[117,199],"rate":[118],"while":[119],"satisfying":[120],"constraints":[121],"on":[122],"power,":[125],"legitimate":[127],"users\u2019":[128],"quality":[129],"service,":[131],"energy-harvesting":[133],"requirements.":[134],"Given":[135],"high-dimensional,":[137],"non-convex,":[138],"NP-hard":[140],"nature":[141],"problem,":[144],"we":[145],"develop":[146],"an":[147,161],"enhanced":[148],"actor-critic":[149],"deep":[150],"reinforcement":[151],"learning":[152],"(DRL)":[153],"framework.":[154],"The":[155],"core":[156],"innovation":[157],"lies":[158],"in":[159,194],"designing":[160],"episodic":[162],"return-prioritized":[163],"experience":[164],"selection":[165],"mechanism":[166],"with":[167],"online":[168],"mixing,":[169],"significantly":[171],"improves":[172],"sampling":[174],"efficiency":[175],"policy":[177],"stability":[178],"intelligently":[180],"selecting":[181],"training":[182],"data.":[183],"Simulation":[184],"results":[185],"demonstrate":[186],"that":[187],"proposed":[189],"approach":[190],"outperforms":[191],"existing":[192],"schemes":[193],"achieving":[195],"higher":[197],"rate,":[200],"providing":[201],"practical":[203],"highly":[205],"efficient":[206],"solution":[209],"for":[210],"building":[211],"secure":[212],"next-generation":[215],"SAGIN.":[216]},"counts_by_year":[],"updated_date":"2026-06-12T08:23:45.883708","created_date":"2026-06-06T00:00:00"}