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| Content Provider | IET Digital Library |
|---|---|
| Author | Alavi, Faezeh Saeedi, Hamid |
| Abstract | In this study, the authors consider a cooperative communication framework based on one-way and two-way relays to provide secure communications for secondary users (SUs) within an orthogonal frequency-division multiple access-based underlay cognitive network. By proposing a radio resource allocation problem with the aim of maximising the secrecy sum-rate of SUs and solving it, they show that the deployment of relays is vital to achieve a non-zero secrecy sum-rate. Also, the impact of two-way relay in system performance improvement is clearly visible in comparison with one-way relay such that it can roughly double the resulting system secrecy sum-rate. The impact of different system parameters on the achievable secrecy sum-rate for both one-way and two-way relays is also investigated and compared through simulations. |
| Starting Page | 2124 |
| Ending Page | 2130 |
| Page Count | 7 |
| ISSN | 17518628 |
| Volume Number | 9 |
| e-ISSN | 17518636 |
| Issue Number | Issue 17, Nov (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/9/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.1099 |
| Journal | IET Communications |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Cognitive Radio Cooperative Communication Frequency Division Multiple Access Modulation And Coding Method Multiple Access Communication Nonzero Secrecy Sum-rate OFDM Modulation Orthogonal Frequency-division Multiple Access Physical Layer Security Radio Link And Equipment Radio Resource Allocation Relay Deployment Relay Network Relay-assisted Cognitive Radio Network Resource Allocation Secondary User Secure Communication Telecommunication Telecommunication Security Underlay Cognitive Network |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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