In recent years, the increasing demand to see the status of objects over the Internet leads to
an increase in the number of Internet of Things (IoT) applications. The unique nature of IoT …

IoT devices have been widely utilized to detect state transition in the surrounding
environment and transmit status updates to the base station for system operations. To …

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 …

The aim of this paper is to exploit cognitive-radio inspired NOMA (CR-NOMA) transmission
to reduce the age of information in wireless networks. In particular, two CR-NOMA …

This paper investigates how to suppress the Age of Information (AoI) in an opportunistic
channel access system, which allows multiple mobile devices to access a base station …

This paper considers a system in which multiple users send periodically generated status
information to a common access point (AP) over a collision channel. To avoid high …

Information aging has gained prominence in characterizing communication protocols for
timely remote estimation and control applications. This work proposes an Age of Information …

Designing efficient random access is a vital problem for urgency-constrained packet delivery
in uplink Internet of Things (IoT), which has not been investigated in depth so far. In this …

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 …

This paper considers dynamic optimization of random access in deadline-constrained
broadcasting with frame-synchronized traffic. Under the non-retransmission setting, we …