{"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"],"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"],"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"],"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"],"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 Voz\u0148\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"],"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":3.1467,"has_fulltext":true,"cited_by_count":35,"citation_normalized_percentile":{"value":0.92000068,"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/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"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":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":"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":null,"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":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}