Existing studies on physical layer security often assume the availability of perfect channel
state information (CSI) and overlook the importance of channel training needed for obtaining …

This letter proposes a paradigm shift in wireless security from preventing conventional
eavesdropping attacks to a new legitimate surveillance objective by studying how a …

This paper studies the security aspect of a recently introduced “cell-free massive MIMO”
network under a pilot spoofing attack. First, a simple method to recognize the presence of …

This paper investigates reliable and covert transmission strategies in a multiple-input
multiple-output (MIMO) wiretap channel with a transmitter, receiver and an adversarial …

We propose a robust resource allocation framework to improve the physical layer security in
the presence of an active eavesdropper. In the considered system, we assume that both …

Unlike passive eavesdropping, proactive eavesdropping is recently proposed to use
jamming to moderate a suspicious link's communication rate for facilitating simultaneous …

In this paper, we consider physical-layer security for device-to-device (D2D)
communications underlaying cellular networks in which cellular users are under threat from …

This paper considers a scenario in which an Alice-Bob pair wishes to communicate in secret
in the presence of an active Eve, who is capable of jamming as well as eavesdropping and …

In order to enhance secrecy performance of protecting scenarios, understanding the
illegitimate side is crucial. In this paper, from the perspective of the illegitimate side, the …

In this paper, we study a novel approach to eavesdrop the messages of suspicious users for
a surveillance purpose. In particular, we consider a scenario in which the legitimate monitor …