Joint Secure Beamforming Design at the Source and the Relay for an Amplify-and-Forward MIMO Untrusted Relay System

@article{Jeong2012JointSB,
  title={Joint Secure Beamforming Design at the Source and the Relay for an Amplify-and-Forward MIMO Untrusted Relay System},
  author={Cheol Jeong and Il-Min Kim and Dong In Kim},
  journal={IEEE Transactions on Signal Processing},
  year={2012},
  volume={60},
  pages={310-325}
}
An amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay network composed of a source, a relay, and a destination is considered, where transmit beamforming is employed both at the source and at the relay. The relay is a user who is willing to help the communication from the source to the destination. In our paper, however, the relay is untrusted in the sense that it may make a passive security attack; that is, it may decode messages of the source. We consider two ways to transmit… CONTINUE READING

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