We summarize recent contributions in the broad area of age of information (AoI). In particular, we describe the current state of the art in the design and optimization of low …
D Feng, L Lai, J Luo, Y Zhong, C Zheng… - Science China Information …, 2021 - Springer
In the upcoming 5G and beyond systems, ultra-reliable and low latency communication (URLLC) has been considered as the key enabler to support diverse mission-critical …
Age of information (AoI) was introduced in the early 2010s as a notion to characterize the freshness of the knowledge a system has about a process observed remotely. AoI was …
In this paper, we consider a wireless broadcast network with a base station sending time- sensitive information to a number of clients through unreliable channels. The Age of …
Information usually has the highest value when it is fresh. For example, real-time knowledge about the location, orientation, and speed of motor vehicles is imperative in autonomous …
In this paper, we study how to optimally manage the freshness of information updates sent from a source node to a destination via a channel. A proper metric for data freshness at the …
RD Yates, SK Kaul - IEEE Transactions on Information Theory, 2018 - ieeexplore.ieee.org
We examine multiple independent sources providing status updates to a monitor through simple queues. We formulate an age of information (AoI) timeliness metric and derive a …
X Wu, J Yang, J Wu - IEEE Transactions on Green …, 2017 - ieeexplore.ieee.org
In this paper, we consider a scenario where an energy harvesting sensor continuously monitors a system and sends time-stamped status updates to a destination. The destination …
Motivated by the need to ensure timely delivery of information (eg, status updates) in the Internet-of-Things (IoT) paradigm, this paper investigates the role of an unmanned aerial …