This paper studies robust transmission schemes for multiple-input single-output (MISO)
wiretap channels. Both the cases of direct transmission and cooperative jamming with a …

This letter investigates robust secrecy rate optimization techniques for a multiple-input-
multiple-output (MIMO) wiretap channel in the presence of a multiantenna eavesdropper. In …

In this paper, we consider the robust secure beamformer design for multiple-input-single-
output wiretap channels. Assuming that the eavesdroppers' channels are only partially …

This paper investigates secrecy rate optimization problems for a multiple-input-single-output
(MISO) secrecy channel in the presence of multiple multiantenna eavesdroppers …

In recent years there has been growing interest in study of multi-antenna transmit designs for
providing secure communication over the physical layer. This paper considers the scenario …

In this paper, we study different secrecy rate optimization techniques for a multiple-input–
multiple-output (MIMO) secrecy channel, where a multiantenna cooperative jammer is …

Consider an MISO channel overheard by multiple eavesdroppers. Our goal is to design an
artificial noise (AN)-aided transmit strategy, such that the achievable secrecy rate is …

We consider a Gaussian multiple-input multiple-output (MIMO) wiretap channel model,
where there exists a transmitter, a legitimate receiver and an eavesdropper, each node …

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 …

In this letter, we address physical layer security in MISO communications in the presence of
passive eavesdroppers, ie, the eavesdroppers' channels are unknown to the transmitter …