Artificial noise with optimal power allocation in multi-input single-output wiretap channels

  title={Artificial noise with optimal power allocation in multi-input single-output wiretap channels},
  author={Nan Yang and Jinhong Yuan and Robert A. Malaney and Ramanan Subramanian and Ingmar Land},
  journal={2014 IEEE International Conference on Communications (ICC)},
We analyze and optimize the use of artificial noise (AN) for a predefined secrecy rate in wiretap channels with a multi-antenna transmitter, a single-antenna receiver, and a single-antenna eavesdropper. We derive a new closed-form expression for the secrecy outage probability that is independent of the channel realization. Based on this expression, we first optimize the power allocation between the information signal and the AN signal such that the secrecy outage probability is minimized. We… CONTINUE READING

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On the impact of quantized channel feedback in guaranteeing secrecy with artificial noise: The noise leakage problem

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