Physical Layer Security Scheme Resistant to Multi-eavesdroppers with Inaccurate Channel State Information in Relay Network

Lei Wei-jia; Zuo Li-jie; Jiang Xue; Xie Xian-zhong

doi:10.11999/JEIT141579

Volume 37 Issue 9

Sep. 2015

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Article Navigation > Journal of Electronics & Information Technology > 2015 > 37(9): 2191-2197

Lei Wei-jia, Zuo Li-jie, Jiang Xue, Xie Xian-zhong. Physical Layer Security Scheme Resistant to Multi-eavesdroppers with Inaccurate Channel State Information in Relay Network[J]. Journal of Electronics & Information Technology, 2015, 37(9): 2191-2197. doi: 10.11999/JEIT141579

Citation:

Lei Wei-jia, Zuo Li-jie, Jiang Xue, Xie Xian-zhong. Physical Layer Security Scheme Resistant to Multi-eavesdroppers with Inaccurate Channel State Information in Relay Network[J]. Journal of Electronics & Information Technology, 2015, 37(9): 2191-2197. doi: 10.11999/JEIT141579

Citation:

Lei Wei-jia, Zuo Li-jie, Jiang Xue, Xie Xian-zhong. Physical Layer Security Scheme Resistant to Multi-eavesdroppers with Inaccurate Channel State Information in Relay Network[J]. Journal of Electronics & Information Technology, 2015, 37(9): 2191-2197. doi: 10.11999/JEIT141579

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Physical Layer Security Scheme Resistant to Multi-eavesdroppers with Inaccurate Channel State Information in Relay Network

doi: 10.11999/JEIT141579

Received Date: 2014-12-10
Rev Recd Date: 2015-05-04
Publish Date: 2015-09-19

Abstract

Abstract

This paper investigates the relay transmission system in the presence of multiple collusion single-antenna eavesdroppers. A physical layer security scheme employing nullspace Artificial Noise (AN) and Amplify-and-Forward (AF) relay beamforming is designed. In the case that channel state information can not be accurately obtained, the weighted matrice of relay beamforming and the nullspace AN covariance are jointed optimized based on the Semi-Definite Programs (SDP), which can effectively reduce the amount of the information likely to be obtained by the multiple collusion eavesdroppers and significantly improve the security capacity of the system. It is an effective physical security transmission scheme with good robustness. Simulation results verify that the scheme has good performance.
- Physical layer security,
- Secrecy rate,
- Multi-eavesdroppers,
- Inaccurate channel state information,
- Semi- Definite Program (SDP)

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References(18)

References

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