This paper examines linear beamforming methods for secure communications in a multiuser
wiretap channel with a single transmitter, multiple legitimate receivers, and a single …

This paper studies the use of artificial interference in reducing the likelihood that a
confidential message transmitted between two multi-antenna nodes is intercepted by a …

Secrecy on the physical layer receives increased research interest. Especially in the
wireless communication scenarios, the interest in confidentiality of messages increases. In …

In this paper, we investigate methods for reducing the likelihood that a message transmitted
between two multi-antenna nodes is intercepted by an undetected eavesdropper. In …

This paper studies the use of artificial interference in reducing the likelihood that a message
transmitted between two multi-antenna nodes is intercepted by an undetected …

In this paper, we propose a new beamforming scheme for multi-input multi-output (MIMO)
Gaussian wiretap channels where the channel state information (CSI) from the …

We study a multi-antenna wiretap channel, where the transmitter does not have perfect
knowledge about the channels to the eavesdropper. The transmitter only knows that the …

We study a multi-antenna broadcast channel with two legitimate receivers and an external
eavesdropper. We assume that the channel matrix of the eavesdropper is unknown to the …

This paper studies the artificial noise (AN) aided beamforming design in the multiple-input,
single-output, and multiple-eavesdropper wiretap channel from the perspective of secrecy …

Wyner's wiretap channel is generalized to the case when the sender, the receiver and the
eavesdropper have multiple antennas. We consider two cases: the deterministic case and …