The rapid advancement of artificial intelligence technologies has given rise to diversified
intelligent services, which place unprecedented demands on massive connectivity and …

Intelligent reflecting surface (IRS) has recently been envisioned to offer unprecedented
massive multiple-input multiple-output (MIMO)-like gains by deploying large-scale and low …

This paper presents a content-centric transmission design in a cloud radio access network
by incorporating multicasting and caching. Users requesting the same content form a …

Non-orthogonal multiple access (NOMA) systems have the potential to deliver higher system
throughput, compared with contemporary orthogonal multiple access techniques. For a …

For a massive multiple-input multiple-output (MIMO) system, restricting the number of RF
chains to far less than the number of antenna elements can significantly reduce the …

Owing to their controlled mobility, extensive coverage and low cost, unmanned aerial
vehicles (UAVs) have significant promise in the field of military, civilian and commercial …

We introduce the Suggest-and-Improve framework for general nonconvex quadratically
constrained quadratic programs (QCQPs). Using this framework, we generalize a number of …

Quadratically constrained quadratic programs (QCQPs) have a wide range of applications in
signal processing and wireless communications. Non-convex QCQPs are NP-hard in …

Nonconvex quadratically constrained quadratic programming (QCQP) problems have
numerous applications in signal processing, machine learning, and wireless …

Covert transmission is studied for an intelligent reflecting surface (IRS) aided communication
system, where Alice aims to transmit messages to Bob without being detected by the warden …