In this paper, we investigate the timeliness performance of a downlink wireless
communication system with non-orthogonal multiple access (NOMA). The timeliness of the …

Covert communication in delay-sensitive application scenarios in the presence of an
eavesdropper has drawn substantial attention in the context of data sensing and …

Age of Information (AoI) is a critical performance metric for measuring information freshness
in task-oriented Internet of Things (IoT) applications. In this work, we investigate how AoI …

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 …

The freshness of information is critical for patient vital signs and physiological parameters in
the healthcare system because changes in these parameters can indicate a patient's overall …

For downlink communication, we formulate the network's WSAoI minimization as a Markov
Decision Process (MDP) and investigate an optimal as well as suboptimal policies for the …

In this work, we consider multiple internet-of-things devices (IoTDs) sensing and reporting
the status of a time-varying signal to a central node. We analytically compare the …

Timely sampling and fresh information delivery are important in 6G communications. This is
achieved by encoding samples into short packets/codewords for transmission, with potential …

Abstract Peak Age of Information (PAoI), as a performance indicator representing the
freshness of information, has attracted the attention of researchers in recent years. The data …

In this letter, we propose reliable covert communications with the aim of minimizing age of
information (AoI) in the time-varying channels. We named the time duration that channel …