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

In this paper, we investigate non-orthogonal multiple access (NOMA) based average age of
information (AoI) in LEO satellite-terrestrial integrated networks. Two-user NOMA scheme is …

We introduce minislotted threshold ALOHA (MiSTA), a slotted ALOHA modification designed
to minimize the network-wide time average Age of Information (AoI). In MiSTA, sources …

In many real-time applications, timely accessibility to actionable insights is an important
requirement. We consider users equipped with sensors and actuators, where the sensors …

The aim of this paper is to characterize the impact of non-orthogonal multiple access
(NOMA) on the age of information (AoI) of grant-free transmission. In particular, a low …

This paper analyzes and optimizes the average Age of Information (AAoI) of Frame Slotted
ALOHA with Reservation and Data slots (FSA-RD) in a multi-access network, where multiple …

As a result of densification, the performance of the wireless networks has become highly
interference-limited and energy inefficient. To overcome this problem, interference mitigation …

With the advent and rapidly consolidating of the Internet of Things (IoT), multiple applications
arise with different performance requirements, such as the timeliness of information, which …

In slotted random access systems, when multiple users transmit packets simultaneously,
owing to the successive interference cancellation (SIC) technique, the access point (AP) is …

In this paper, we aim to minimize the age of information (AoI) for a random access internet of
things (IoT) network, where AoI is a metric to measure the freshness of information delivery …