Name
Title | ||
|---|---|---|
Performance Study of Two-Hop Amplify-and-Forward Systems With Untrustworthy Relay Nodes |
Abstract | ||
|---|---|---|
This paper investigates the problem of secure communication for amplify-and-forward (AF) systems with untrustworthy relay nodes. To achieve positive secrecy rate, the destination-based jamming (DBJ) technique is applied. We first focus on the single-relay scenario, for which the closed-form expression for the lower bound of the ergodic secrecy capacity (ESC) is derived. Afterward, we extend the DBJ method to the multi-relay scenario and propose a secure relay selection scheme that can maximize the achievable secrecy rate. Based on the extreme-value theory, the approximate ESC is characterized. Our work reveals an interesting result that, when the relay nodes are untrustworthy, the system performance worsens as the number of relays increases. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/TVT.2012.2207438 | IEEE T. Vehicular Technology |
Keywords | Field | DocType |
Relays,Signal to noise ratio,Protocols,Jamming,Fading,Security,Sun | Relay channel,Upper and lower bounds,Computer science,Ergodic theory,Secrecy,Computer network,Hop (networking),Jamming,Relay,Secure communication | Journal |
Volume | Issue | ISSN |
61 | 8 | 0018-9545 |
Citations | PageRank | References |
49 | 1.42 | 27 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Li Sun | 1 | 306 | 32.86 |
| Taiyi Zhang | 2 | 176 | 17.60 |
| Yubo Li | 3 | 50 | 1.76 |
| Hao Niu | 4 | 153 | 11.33 |