Physical layer covert communication is a crucial secure communication technology that
enables a transmitter to convey information covertly to a recipient without being detected by …

Being a key technology for beyond fifth-generation wireless systems, joint communication
and radar sensing (JCAS) utilizes the reflections of communication signals to detect foreign …

Autonomous tracking of suspicious unmanned aerial vehicles (UAVs) by legitimate
monitoring UAVs (or monitors) can be crucial to public safety and security. It is non-trivial to …

We survey optimization problems that involve the cardinality of variable vectors in
constraints or the objective function. We provide a unified viewpoint on the general problem …

Disguised tailing and visual monitoring of suspicious mobile targets is a promising
application of security unmanned aerial vehicles (UAVs). But trajectory planning is non …

In this paper, we propose an inexact block coordinate descent algorithm for large-scale
nonsmooth nonconvex optimization problems. At each iteration, a particular block variable is …

As a new color image representation tool, quaternion has achieved excellent results in color
image processing problems. In this paper, we propose a novel low-rank quaternion matrix …

Cellular vehicle-to-everything (C-V2X) has been continuously evolving since Release 14 of
the 3rd Generation Partnership Project (3GPP) for future autonomous vehicles. Apart from …

The phase-only null beamforming synthesis is widely used in communication, radar, and
sonar. Due to the phase-only constraint (constant modulus constraint), the problem is …

Using unmanned aerial vehicles (UAVs) to collect data in wireless sensor networks (WSNs)
has advantages of controllable mobility and flexible deployment. However, there are …