Research Article
Cooperative Jamming and Beamforming in Amplify-and-Forward Relay Systems for Physical-Layer Security
@INPROCEEDINGS{10.4108/eai.19-8-2015.2261538, author={henan lei and Li Guo and Jianwei Zhang}, title={Cooperative Jamming and Beamforming in Amplify-and-Forward Relay Systems for Physical-Layer Security}, proceedings={11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness}, publisher={IEEE}, proceedings_a={QSHINE}, year={2015}, month={9}, keywords={security jamming beamforming}, doi={10.4108/eai.19-8-2015.2261538} }- henan lei
Li Guo
Jianwei Zhang
Year: 2015
Cooperative Jamming and Beamforming in Amplify-and-Forward Relay Systems for Physical-Layer Security
QSHINE
IEEE
DOI: 10.4108/eai.19-8-2015.2261538
Abstract
In this paper, we propose a hybrid cooperative beamforming and jamming scheme to enhance the physical-layer security in the two-way relay network with an eavesdropper and a primary receiver. Cooperative beamforming and jamming are designed to maximize the secrecy rate with a total transmit power constraint of the relays and interference power constraint at the primary receiver. The beamformer weights can be obtained by solving a semidefinite programming (SDP). And a method based on the first order Taylor polynomial which has lower complexity but comparable performance is introduced. Simulations show the joint scheme greatly improves the security.
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