{"id":"https://openalex.org/W3196054203","doi":"https://doi.org/10.1109/lwc.2021.3097583","title":"Sum Secrecy Rate Maximization in NOMA-Based Cognitive Satellite-Terrestrial Network","display_name":"Sum Secrecy Rate Maximization in NOMA-Based Cognitive Satellite-Terrestrial Network","publication_year":2021,"publication_date":"2021-08-24","ids":{"openalex":"https://openalex.org/W3196054203","doi":"https://doi.org/10.1109/lwc.2021.3097583","mag":"3196054203"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2021.3097583","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2021.3097583","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","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/A5048596648","display_name":"Hai Li","orcid":"https://orcid.org/0000-0001-9370-6253"},"institutions":[{"id":"https://openalex.org/I4210104252","display_name":"Air Force Engineering University","ror":"https://ror.org/00seraz22","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210104252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hai Li","raw_affiliation_strings":["College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","College of Information and Navigation College, Air Force Engineering University, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0001-9370-6253","affiliations":[{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","institution_ids":["https://openalex.org/I4210104252"]},{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi'an, China","institution_ids":["https://openalex.org/I4210104252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110364605","display_name":"Shanghong Zhao","orcid":"https://orcid.org/0000-0001-9505-1043"},"institutions":[{"id":"https://openalex.org/I4210104252","display_name":"Air Force Engineering University","ror":"https://ror.org/00seraz22","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210104252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shanghong Zhao","raw_affiliation_strings":["College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","College of Information and Navigation College, Air Force Engineering University, Xi'an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","institution_ids":["https://openalex.org/I4210104252"]},{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi'an, China","institution_ids":["https://openalex.org/I4210104252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100376885","display_name":"Yongjun Li","orcid":"https://orcid.org/0000-0002-9679-3337"},"institutions":[{"id":"https://openalex.org/I4210104252","display_name":"Air Force Engineering University","ror":"https://ror.org/00seraz22","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210104252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongjun Li","raw_affiliation_strings":["College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","College of Information and Navigation College, Air Force Engineering University, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0002-9679-3337","affiliations":[{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","institution_ids":["https://openalex.org/I4210104252"]},{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi'an, China","institution_ids":["https://openalex.org/I4210104252"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101694333","display_name":"Cong Peng","orcid":null},"institutions":[{"id":"https://openalex.org/I4210104252","display_name":"Air Force Engineering University","ror":"https://ror.org/00seraz22","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210104252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Cong Peng","raw_affiliation_strings":["College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","College of Information and Navigation College, Air Force Engineering University, Xi'an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi\u2019an, China","institution_ids":["https://openalex.org/I4210104252"]},{"raw_affiliation_string":"College of Information and Navigation College, Air Force Engineering University, Xi'an, China","institution_ids":["https://openalex.org/I4210104252"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210104252"],"apc_list":null,"apc_paid":null,"fwci":22.4196,"has_fulltext":false,"cited_by_count":29,"citation_normalized_percentile":{"value":0.98977962,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"10","issue":"10","first_page":"2230","last_page":"2234"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":1.0,"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":1.0,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9987000226974487,"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/T11133","display_name":"UAV Applications and Optimization","score":0.995199978351593,"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/beamforming","display_name":"Beamforming","score":0.854720950126648},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7054198980331421},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.586078941822052},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5275309085845947},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.5055322647094727},{"id":"https://openalex.org/keywords/noma","display_name":"Noma","score":0.4889165461063385},{"id":"https://openalex.org/keywords/relaxation","display_name":"Relaxation (psychology)","score":0.4885185956954956},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.47242271900177},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3038445711135864},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2095303237438202},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20889794826507568},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.19825735688209534},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.14298120141029358}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.854720950126648},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7054198980331421},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.586078941822052},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5275309085845947},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.5055322647094727},{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.4889165461063385},{"id":"https://openalex.org/C2776029896","wikidata":"https://www.wikidata.org/wiki/Q3935810","display_name":"Relaxation (psychology)","level":2,"score":0.4885185956954956},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.47242271900177},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3038445711135864},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2095303237438202},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20889794826507568},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.19825735688209534},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.14298120141029358},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2021.3097583","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2021.3097583","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G5972069811","display_name":"\u57fa\u4e8e\u591a\u661f\u5171\u8f68\u67b6\u6784\u7684\u7a7a\u95f4\u4fe1\u606f\u7f51\u7edc\u5206\u5e03\u5f0f\u62d3\u6251\u63a7\u5236\u673a\u5236\u4e0e\u4f18\u5316\u65b9\u6cd5\u7814\u7a76","funder_award_id":"61701522","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":20,"referenced_works":["https://openalex.org/W1996215314","https://openalex.org/W2005102197","https://openalex.org/W2082276212","https://openalex.org/W2100573451","https://openalex.org/W2124488712","https://openalex.org/W2528584088","https://openalex.org/W2569659590","https://openalex.org/W2734990044","https://openalex.org/W2800252416","https://openalex.org/W2892656107","https://openalex.org/W2900961289","https://openalex.org/W2911529145","https://openalex.org/W2919910672","https://openalex.org/W2924020176","https://openalex.org/W2940954889","https://openalex.org/W2947459282","https://openalex.org/W2963993392","https://openalex.org/W3038658251","https://openalex.org/W3041665056","https://openalex.org/W4250589301"],"related_works":["https://openalex.org/W4286569445","https://openalex.org/W4236087151","https://openalex.org/W2761543104","https://openalex.org/W4302353319","https://openalex.org/W2047743558","https://openalex.org/W2756132392","https://openalex.org/W3035814349","https://openalex.org/W2084892497","https://openalex.org/W4285101096","https://openalex.org/W4320477335"],"abstract_inverted_index":{"In":[0],"this":[1],"letter,":[2],"we":[3,79],"present":[4],"a":[5,88],"joint":[6,131],"beamforming":[7,108,114,132],"design":[8],"for":[9],"non-orthogonal":[10],"multiple":[11,23],"access":[12,24],"(NOMA)-based":[13],"cognitive":[14],"satellite-terrestrial":[15],"network":[16,20],"(CSTN),":[17],"where":[18],"satellite":[19,46],"applies":[21],"orthogonal":[22],"(OMA)":[25],"technology":[26],"and":[27,62,77,98,102,126],"NOMA":[28],"scheme":[29,37],"is":[30,39,74],"utilized":[31],"by":[32,93],"the":[33,49,56,67,70,81,112,124,129],"terrestrial":[34,60],"network.":[35],"The":[36],"key":[38],"to":[40,87,110,122],"maximize":[41],"sum":[42],"secrecy":[43],"rate":[44,57],"of":[45,59,66,128],"users":[47,61],"under":[48],"imperfect":[50],"channel":[51],"state":[52],"information,":[53],"while":[54],"meeting":[55],"requirements":[58],"transmit":[63],"power":[64],"constraints":[65],"CSTN.":[68],"Since":[69],"formulated":[71],"optimization":[72],"problem":[73,86],"non":[75,83],"convex":[76,84,91,95],"intractable,":[78],"convert":[80],"original":[82],"maximization":[85],"corresponding":[89],"tractable":[90],"one":[92],"successive":[94],"approximation":[96],"(SCA)":[97],"semidefinite":[99],"relaxation":[100],"(SDR),":[101],"then":[103],"propose":[104],"an":[105],"SCA-based":[106],"iterative":[107],"algorithm":[109],"get":[111],"secure":[113],"vectors.":[115],"Finally,":[116],"numerical":[117],"simulation":[118],"results":[119],"are":[120],"provided":[121],"verify":[123],"effectiveness":[125],"superiority":[127],"proposed":[130],"design.":[133]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":10},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
