Consider a multi-input multi-output (MIMO) channel wiretapped by multiple multi-antenna
eavesdroppers. Assuming imperfect eavesdroppers' channel state information (CSI) at the …

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 …

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

This paper considers transmit optimization in multi-input multi-output (MIMO) wiretap
channels, wherein we aim at maximizing the secrecy capacity or rate of an MIMO channel …

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 …

This paper studies different secrecy rate optimization problems for a multiple-input–multiple-
output (MIMO) secrecy channel. In particular, we consider a scenario where a …

In this paper, we consider the problem of optimizing the transmit co-variance matrix for a
multiple-input multiple-output (MIMO) Gaussian wiretap channel. The scenario of interest …

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 …

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 …

In this letter, we investigate a robust transmit optimization design based on an artificial noise
(AN)-aided precoding scheme for maximizing secrecy rate in a multiple-input multiple-output …