Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection
In this paper, we study the secrecy performance of a half-duplex cognitive relay network in the presence of multiple eavesdroppers and multiple primary users. In particular, generic K th best relay selection schemes for opportunistic relay selection (ORS) and partial relay selection (PRS) are propos...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2017-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7888487/ |
| _version_ | 1818877217703198720 |
|---|---|
| author | Minh-Nghia Nguyen Nam-Phong Nguyen Daniel B. Da Costa Huu-Khuong Nguyen Rafael Timoteo De Sousa |
| author_facet | Minh-Nghia Nguyen Nam-Phong Nguyen Daniel B. Da Costa Huu-Khuong Nguyen Rafael Timoteo De Sousa |
| author_sort | Minh-Nghia Nguyen |
| collection | DOAJ |
| description | In this paper, we study the secrecy performance of a half-duplex cognitive relay network in the presence of multiple eavesdroppers and multiple primary users. In particular, generic K th best relay selection schemes for opportunistic relay selection (ORS) and partial relay selection (PRS) are proposed. Exact closed-form and asymptotic expressions for secrecy outage probability (SOP) of the considered schemes are derived. The outcome shows that ORS is able to achieve full secrecy diversity order while PRS obtains unit diversity order. Besides, the order of the selected relay is proved to affect the secrecy diversity order in the ORS scheme but not the PRS scheme, while the number of primary users does not have influence on the diversity order. Additionally, the significance of the change in the number of relays on the SOP enhances at higher orders of selected relay. Nevertheless, increasing the number of eavesdroppers reduces the secrecy diversity gain of the considered system in both schemes. |
| first_indexed | 2024-12-19T13:54:47Z |
| format | Article |
| id | doaj.art-8aeae4c965a748538022c7d2c482df4c |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T13:54:47Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-8aeae4c965a748538022c7d2c482df4c2022-12-21T20:18:38ZengIEEEIEEE Access2169-35362017-01-0156678668710.1109/ACCESS.2017.26869847888487Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay SelectionMinh-Nghia Nguyen0Nam-Phong Nguyen1Daniel B. Da Costa2Huu-Khuong Nguyen3Rafael Timoteo De Sousa4School of Electronics, Electrical Engineering and Computer Science, Queen’s University Belfast, Belfast, U.K.School of Electronics, Electrical Engineering and Computer Science, Queen’s University Belfast, Belfast, U.K.Department of Computer Engineering, Federal University of Ceará, Sobral, BrazilFaculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh City, VietnamUniversity of Brasilia, Brasília, BrazilIn this paper, we study the secrecy performance of a half-duplex cognitive relay network in the presence of multiple eavesdroppers and multiple primary users. In particular, generic K th best relay selection schemes for opportunistic relay selection (ORS) and partial relay selection (PRS) are proposed. Exact closed-form and asymptotic expressions for secrecy outage probability (SOP) of the considered schemes are derived. The outcome shows that ORS is able to achieve full secrecy diversity order while PRS obtains unit diversity order. Besides, the order of the selected relay is proved to affect the secrecy diversity order in the ORS scheme but not the PRS scheme, while the number of primary users does not have influence on the diversity order. Additionally, the significance of the change in the number of relays on the SOP enhances at higher orders of selected relay. Nevertheless, increasing the number of eavesdroppers reduces the secrecy diversity gain of the considered system in both schemes.https://ieeexplore.ieee.org/document/7888487/Physical layer securityrelay selectioncognitive radio |
| spellingShingle | Minh-Nghia Nguyen Nam-Phong Nguyen Daniel B. Da Costa Huu-Khuong Nguyen Rafael Timoteo De Sousa Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection IEEE Access Physical layer security relay selection cognitive radio |
| title | Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection |
| title_full | Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection |
| title_fullStr | Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection |
| title_full_unstemmed | Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection |
| title_short | Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection |
| title_sort | secure cooperative half duplex cognitive radio networks with k th best relay selection |
| topic | Physical layer security relay selection cognitive radio |
| url | https://ieeexplore.ieee.org/document/7888487/ |
| work_keys_str_mv | AT minhnghianguyen securecooperativehalfduplexcognitiveradionetworkswithkthbestrelayselection AT namphongnguyen securecooperativehalfduplexcognitiveradionetworkswithkthbestrelayselection AT danielbdacosta securecooperativehalfduplexcognitiveradionetworkswithkthbestrelayselection AT huukhuongnguyen securecooperativehalfduplexcognitiveradionetworkswithkthbestrelayselection AT rafaeltimoteodesousa securecooperativehalfduplexcognitiveradionetworkswithkthbestrelayselection |