{"id":"https://openalex.org/W2916607718","doi":"https://doi.org/10.3390/e21020217","title":"Secrecy Performance Enhancement for Underlay Cognitive Radio Networks Employing Cooperative Multi-Hop Transmission with and without Presence of Hardware Impairments","display_name":"Secrecy Performance Enhancement for Underlay Cognitive Radio Networks Employing Cooperative Multi-Hop Transmission with and without Presence of Hardware Impairments","publication_year":2019,"publication_date":"2019-02-24","ids":{"openalex":"https://openalex.org/W2916607718","doi":"https://doi.org/10.3390/e21020217","mag":"2916607718","pmid":"https://pubmed.ncbi.nlm.nih.gov/33266932"},"language":"en","primary_location":{"id":"doi:10.3390/e21020217","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e21020217","pdf_url":"https://www.mdpi.com/1099-4300/21/2/217/pdf?version=1551000501","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1099-4300/21/2/217/pdf?version=1551000501","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5039592401","display_name":"Phu Tran Tin","orcid":"https://orcid.org/0000-0002-5793-4627"},"institutions":[{"id":"https://openalex.org/I142208455","display_name":"VSB - Technical University of Ostrava","ror":"https://ror.org/05x8mcb75","country_code":"CZ","type":"education","lineage":["https://openalex.org/I142208455"]},{"id":"https://openalex.org/I202539009","display_name":"Industrial University of Ho Chi Minh City","ror":"https://ror.org/03mj71j26","country_code":"VN","type":"education","lineage":["https://openalex.org/I202539009"]}],"countries":["CZ","VN"],"is_corresponding":false,"raw_author_name":"Phu Tran Tin","raw_affiliation_strings":["Faculty of Electronics Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71408, Vietnam","VSB\u2014Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Poruba, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0002-5793-4627","affiliations":[{"raw_affiliation_string":"Faculty of Electronics Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71408, Vietnam","institution_ids":["https://openalex.org/I202539009"]},{"raw_affiliation_string":"VSB\u2014Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Poruba, Czech Republic","institution_ids":["https://openalex.org/I142208455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051455985","display_name":"Dang The Hung","orcid":"https://orcid.org/0000-0001-6109-5208"},"institutions":[{"id":"https://openalex.org/I131359167","display_name":"Le Quy Don Technical University","ror":"https://ror.org/04wgyjv21","country_code":"VN","type":"education","lineage":["https://openalex.org/I131359167"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Dang The Hung","raw_affiliation_strings":["Faculty of Radio-Electronics Engineering, Le Quy Don Technical University, Hanoi 11917, Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Radio-Electronics Engineering, Le Quy Don Technical University, Hanoi 11917, Vietnam","institution_ids":["https://openalex.org/I131359167"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100701432","display_name":"Tan N. Nguyen","orcid":"https://orcid.org/0000-0002-2286-6652"},"institutions":[{"id":"https://openalex.org/I141445968","display_name":"Ton Duc Thang University","ror":"https://ror.org/01drq0835","country_code":"VN","type":"education","lineage":["https://openalex.org/I141445968"]}],"countries":["VN"],"is_corresponding":true,"raw_author_name":"Tan N. Nguyen","raw_affiliation_strings":["Wireless Communications Research Group, Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City 72912, Vietnam"],"raw_orcid":"https://orcid.org/0000-0002-2286-6652","affiliations":[{"raw_affiliation_string":"Wireless Communications Research Group, Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City 72912, Vietnam","institution_ids":["https://openalex.org/I141445968"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021210951","display_name":"Tran Trung Duy","orcid":"https://orcid.org/0000-0002-3947-2174"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tran Trung Duy","raw_affiliation_strings":["Department of Telecommunications, Posts and Telecommunications Institute of Technology, Ho Chi Minh City 71007, Vietnam"],"raw_orcid":"https://orcid.org/0000-0002-3947-2174","affiliations":[{"raw_affiliation_string":"Department of Telecommunications, Posts and Telecommunications Institute of Technology, Ho Chi Minh City 71007, Vietnam","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072201492","display_name":"Miroslav Vozn\u0306\u00e1k","orcid":"https://orcid.org/0000-0001-5135-7980"},"institutions":[{"id":"https://openalex.org/I142208455","display_name":"VSB - Technical University of Ostrava","ror":"https://ror.org/05x8mcb75","country_code":"CZ","type":"education","lineage":["https://openalex.org/I142208455"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Miroslav Voznak","raw_affiliation_strings":["VSB\u2014Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Poruba, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0001-5135-7980","affiliations":[{"raw_affiliation_string":"VSB\u2014Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Poruba, Czech Republic","institution_ids":["https://openalex.org/I142208455"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100701432"],"corresponding_institution_ids":["https://openalex.org/I141445968"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165},"fwci":3.1484,"has_fulltext":true,"cited_by_count":35,"citation_normalized_percentile":{"value":0.92004225,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"21","issue":"2","first_page":"217","last_page":"217"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10964","display_name":"Wireless Communication Security Techniques","score":1.0,"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/T10964","display_name":"Wireless Communication Security Techniques","score":1.0,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9983999729156494,"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/underlay","display_name":"Underlay","score":0.9011862277984619},{"id":"https://openalex.org/keywords/rayleigh-fading","display_name":"Rayleigh fading","score":0.8219846487045288},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.728095531463623},{"id":"https://openalex.org/keywords/secondary-source","display_name":"Secondary source","score":0.7020041942596436},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.6868069171905518},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.6675519943237305},{"id":"https://openalex.org/keywords/hop","display_name":"Hop (telecommunications)","score":0.6404116153717041},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6029936671257019},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.5927598476409912},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5637013912200928},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4796507656574249},{"id":"https://openalex.org/keywords/secrecy","display_name":"Secrecy","score":0.4729314148426056},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.3729386627674103},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.3514910638332367},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.34330499172210693},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.3003009557723999},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2744668424129486},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.2729874849319458},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.25133389234542847},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.12783941626548767},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.10007873177528381},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.09937524795532227}],"concepts":[{"id":"https://openalex.org/C2777679929","wikidata":"https://www.wikidata.org/wiki/Q7883709","display_name":"Underlay","level":3,"score":0.9011862277984619},{"id":"https://openalex.org/C56985126","wikidata":"https://www.wikidata.org/wiki/Q854039","display_name":"Rayleigh fading","level":4,"score":0.8219846487045288},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.728095531463623},{"id":"https://openalex.org/C82979123","wikidata":"https://www.wikidata.org/wiki/Q905511","display_name":"Secondary source","level":2,"score":0.7020041942596436},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.6868069171905518},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.6675519943237305},{"id":"https://openalex.org/C25906391","wikidata":"https://www.wikidata.org/wiki/Q1432381","display_name":"Hop (telecommunications)","level":2,"score":0.6404116153717041},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6029936671257019},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.5927598476409912},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5637013912200928},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4796507656574249},{"id":"https://openalex.org/C2776452267","wikidata":"https://www.wikidata.org/wiki/Q1503443","display_name":"Secrecy","level":2,"score":0.4729314148426056},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.3729386627674103},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.3514910638332367},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.34330499172210693},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.3003009557723999},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2744668424129486},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.2729874849319458},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.25133389234542847},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.12783941626548767},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10007873177528381},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.09937524795532227},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"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/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0}],"mesh":[],"locations_count":6,"locations":[{"id":"doi:10.3390/e21020217","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e21020217","pdf_url":"https://www.mdpi.com/1099-4300/21/2/217/pdf?version=1551000501","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},{"id":"pmid:33266932","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33266932","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:44b14cffb2b84ee5865b0e352e9c08d1","is_oa":true,"landing_page_url":"https://doaj.org/article/44b14cffb2b84ee5865b0e352e9c08d1","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy, Vol 21, Iss 2, p 217 (2019)","raw_type":"article"},{"id":"pmh:oai:dspace.vsb.cz:10084/134719","is_oa":true,"landing_page_url":"http://hdl.handle.net/10084/134719","pdf_url":null,"source":{"id":"https://openalex.org/S4306401668","display_name":"DSpace V\u0160B-TUO (V\u0160B-TUO)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I142208455","host_organization_name":"VSB - Technical University of Ostrava","host_organization_lineage":["https://openalex.org/I142208455"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Peer-reviewed"},{"id":"pmh:oai:mdpi.com:/1099-4300/21/2/217/","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3390/e21020217","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7514698","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7514698","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/e21020217","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e21020217","pdf_url":"https://www.mdpi.com/1099-4300/21/2/217/pdf?version=1551000501","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2197964899","display_name":null,"funder_award_id":"102.04","funder_id":"https://openalex.org/F4320309617","funder_display_name":"National Foundation for Science and Technology Development"},{"id":"https://openalex.org/G6795347261","display_name":"N\u00e2ng cao hi\u1ec7u n\u0103ng m\u1ea1ng v\u00f4 tuy\u1ebfn chuy\u1ec3n ti\u1ebfp s\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c truy\u1ec1n \u0111a ch\u1eb7ng c\u1ed9ng t\u00e1c d\u01b0\u1edbi s\u1ef1 t\u00e1c \u0111\u1ed9ng c\u1ee7a giao thoa \u0111\u1ed3ng k\u00eanh v\u00e0 suy gi\u1ea3m ph\u1ea7n c\u1ee9ng","funder_award_id":"102.04-2017.317","funder_id":"https://openalex.org/F4320309617","funder_display_name":"National Foundation for Science and Technology Development"}],"funders":[{"id":"https://openalex.org/F4320309617","display_name":"National Foundation for Science and Technology Development","ror":"https://ror.org/04rw64z44"},{"id":"https://openalex.org/F4320324050","display_name":"Ostravsk\u00e1 Univerzita v Ostrav\u011b","ror":"https://ror.org/00pyqav47"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2916607718.pdf","grobid_xml":"https://content.openalex.org/works/W2916607718.grobid-xml"},"referenced_works_count":60,"referenced_works":["https://openalex.org/W132242954","https://openalex.org/W2007312804","https://openalex.org/W2031538066","https://openalex.org/W2043769961","https://openalex.org/W2054281205","https://openalex.org/W2056484899","https://openalex.org/W2064492047","https://openalex.org/W2080693943","https://openalex.org/W2082998216","https://openalex.org/W2087604002","https://openalex.org/W2115324684","https://openalex.org/W2128295617","https://openalex.org/W2142238976","https://openalex.org/W2144007657","https://openalex.org/W2152121970","https://openalex.org/W2315101322","https://openalex.org/W2323360258","https://openalex.org/W2341651901","https://openalex.org/W2344182745","https://openalex.org/W2388291050","https://openalex.org/W2471450552","https://openalex.org/W2533853185","https://openalex.org/W2535707866","https://openalex.org/W2565469751","https://openalex.org/W2567709325","https://openalex.org/W2574859879","https://openalex.org/W2734764337","https://openalex.org/W2736532986","https://openalex.org/W2739649640","https://openalex.org/W2742474103","https://openalex.org/W2748965642","https://openalex.org/W2750173078","https://openalex.org/W2753784371","https://openalex.org/W2767012393","https://openalex.org/W2767693767","https://openalex.org/W2768182340","https://openalex.org/W2769252680","https://openalex.org/W2770796819","https://openalex.org/W2782625399","https://openalex.org/W2786976866","https://openalex.org/W2789860114","https://openalex.org/W2893842564","https://openalex.org/W2902360422","https://openalex.org/W2907860850","https://openalex.org/W2962731020","https://openalex.org/W2962911951","https://openalex.org/W2963328377","https://openalex.org/W2963610027","https://openalex.org/W2963728200","https://openalex.org/W2963874728","https://openalex.org/W2964272961","https://openalex.org/W3100399470","https://openalex.org/W3100500011","https://openalex.org/W3100839090","https://openalex.org/W3104116899","https://openalex.org/W3125301543","https://openalex.org/W3147870578","https://openalex.org/W6704500304","https://openalex.org/W6720354249","https://openalex.org/W6743935292"],"related_works":["https://openalex.org/W2062311788","https://openalex.org/W1954142085","https://openalex.org/W2942764970","https://openalex.org/W3118047548","https://openalex.org/W2885238370","https://openalex.org/W4229859351","https://openalex.org/W2108138877","https://openalex.org/W2374382503","https://openalex.org/W2601879519","https://openalex.org/W2916607718"],"abstract_inverted_index":{"In":[0,16,39],"this":[1],"paper,":[2],"we":[3,110],"consider":[4],"a":[5,20,29,43,54,60],"cooperative":[6],"multi-hop":[7,145],"secured":[8],"transmission":[9,147],"protocol":[10],"to":[11,24,28,48],"underlay":[12],"cognitive":[13],"radio":[14],"networks.":[15],"the":[17,33,50,63,87,90,94,98,104,127,139,143],"proposed":[18,140],"protocol,":[19],"secondary":[21,30,37,44,64],"source":[22,51,65],"attempts":[23],"transmit":[25,72,92],"its":[26],"data":[27],"destination":[31],"with":[32],"assistance":[34],"of":[35,89,116],"multiple":[36],"relays.":[38],"addition,":[40],"there":[41],"exists":[42],"eavesdropper":[45],"who":[46],"tries":[47],"overhear":[49],"data.":[52],"Under":[53],"maximum":[55,91],"interference":[56,95],"level":[57,107],"required":[58],"by":[59,125,135],"primary":[61],"user,":[62],"and":[66,97,113],"relay":[67],"nodes":[68],"must":[69],"adjust":[70],"their":[71],"power.":[73],"We":[74],"first":[75],"formulate":[76],"effective":[77],"signal-to-interference-plus-noise":[78],"ratio":[79],"(SINR)":[80],"as":[81,83],"well":[82],"secrecy":[84,118],"capacity":[85],"under":[86],"constraints":[88],"power,":[93],"threshold":[96],"hardware":[99,105],"impairment":[100,106],"level.":[101],"Furthermore,":[102],"when":[103],"is":[108],"relaxed,":[109],"derive":[111],"exact":[112],"asymptotic":[114],"expressions":[115,132],"end-to-end":[117],"outage":[119],"probability":[120],"over":[121],"Rayleigh":[122],"fading":[123],"channels":[124],"using":[126],"recursive":[128],"method.":[129],"The":[130],"derived":[131],"were":[133],"verified":[134],"simulations,":[136],"in":[137],"which":[138],"scheme":[141],"outperformed":[142],"conventional":[144],"direct":[146],"protocol.":[148]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":8},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":8}],"updated_date":"2026-06-22T08:00:12.763002","created_date":"2025-10-10T00:00:00"}