For future wireless communications, Cell-free Massive Multiple-Input Multiple-Output (CF-
mMIMO) systems and Non-orthogonal Multiple Access (NOMA) schemes are considered …

We investigate the age of information (AoI) of relay-assisted cooperative communication
systems. For time-slotted systems without relaying, prior works have shown that the source …

In the coming sixth generation (6G) communication era, to provide seamless and ubiquitous
connections, the space-air-ground-sea integrated network (SAGSIN) is envisioned to …

In the Cellular Internet of Things (CIoT), it is crucial to ensure the information freshness for
status update applications. Considering the centralized access methods could cause large …

With the rapid growth in the requirements of the Internet of Things (IoT), the scarcity of
spectrum resources is becoming serious. Non-orthogonal multiple access (NOMA) and …

Active reconfigurable intelligent surface (RIS) has attracted a lot of attention due to its ability
to drastically change the communication environment by adjusting the phase shift and …

Active intelligent reflecting surface (IRS) has attracted great attention due to the
characteristic of changing the propagation channels by amplifying the amplitude and …

This article studies the information freshness in short packet-based sensor status update
systems, where a control center constantly sends status packets to two Internet of Things …

This paper studies the age of information (AoI) minimization design in a reconfigurable
intelligent surface (RIS)-aided simultaneous wireless information and power transfer …

From the perspective of information security, relays exhibit varying levels of trustworthiness
when forwarding information. For screening and eliminating the malicious users of …