This paper investigates the power allocation problem for artificial noise (AN) secure
precoding systems, and proposes closed-form solutions for maximizing the achievable …

In this paper, we study a legitimate proactive eavesdropping scenario where a central
monitor covertly wiretaps the communications between a pair of suspicious users via …

Considering simultaneous wireless information and power transfer (SWIPT), we investigate
cooperative-jamming (CJ) aided robust secure transmission design in multiple-input-single …

We study power allocation for secrecy rate maximization in a multicarrier decode-and-
forward relay system, where an eavesdropper exists. We consider three transmission …

In this letter, considering the simultaneous wireless information and power transfer scheme,
we study the robust artificial noise (AN)-aided secure transmission design in multiple-input …

Information theoretic security has recently emerged as an effective physical layer approach
to provide secure communications. The outage performance of such a secrecy …

Secure relay and jammer selection for physical-layer security is studied in a wireless
network with multiple intermediate nodes and eavesdroppers, where each intermediate …

In this paper, we consider the problem of secure communications for a four-node system
consisting of one source, one destination, one eavesdropper, and one helper. We …

A wireless network of multiple transmitter-user pairs overheard by an eavesdropper, where
the transmitters are equipped with multiple antennas, while the users and eavesdropper are …

Physical-layer secure is an important issue for untrusted relay systems. In this paper, we
investigate secure precoding design for non-regenerative multiple-input multiple-output …