The sixth generation (6G) wireless systems are envisioned to enable the paradigm shift from
“connected things” to “connected intelligence”, featured by ultra high density, large-scale …

While machine-type communication (MTC) devices generate considerable amounts of data,
they often cannot process the data due to limited energy and computational power. To …

In this work, we propose ultra-low-complexity design solutions for multi-group multicast
beamforming in large-scale systems. For the quality-of-service (QoS) problem, by utilizing …

Reconfigurable intelligent surface (RIS) is a disruptive technology to enhance the
performance of physical-layer key generation (PKG) thanks to its ability to smartly customize …

In multi-antenna systems, it is preferred to activate only a subset of the available transmit
antennas in order to save hardware and energy resources, without seriously degrading the …

In this paper, we investigate the design of a pilot spoofing attack (PSA) carried out by
multiple single-antenna eavesdroppers (Eves) in a downlink time-division duplex system …

Massive MIMO is currently a leading physical layer technology candidate that can
dramatically enhance throughput in 5G systems, for both unicast and multicast transmission …

As the demand for supporting hybrid multicast and unicast services is rapidly increasing, a
non-orthogonal multiplexing transmission scheme called layered-division multiplexing …

The technology of static user-centric virtual cell (VC) has been designed in the fifth-
generation (5G) ultra-dense networks (UDNs) for alleviating both frequent handover and …

We propose a first-order fast algorithm for the weighted max-min fair (MMF) multi-group
multicast beamforming problem in large-scale systems. Utilizing the optimal multicast …