Artificial Noise Generated in MIMO Scenario: Optimal Power Design

  title={Artificial Noise Generated in MIMO Scenario: Optimal Power Design},
  author={Yan Zhu and Yongkai Zhou and Shivani Patel and Xiao Chen and Liang Pang and Zhi Xue},
  journal={IEEE Signal Processing Letters},
In wireless communication, the transmitter (Alice) can send artificial noise (AN) to interfere with the eavesdropper (Eve). This letter considers the AN MIMO scenario, i.e., both Alice and the legitimate receiver (Bob) are equipped with multiple antennas. A closed-form expression for the lower bound of secrecy capacity is obtained. It is proved that water-filling is the optimal power allocation scheme. An efficient iterative algorithm is proposed to find the optimal power distribution ratio… CONTINUE READING
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