Timely status updating over erasure channels using an energy harvesting sensor: Single and multiple sources

A Arafa, J Yang, S Ulukus… - IEEE Transactions on …, 2021‏ - ieeexplore.ieee.org
A status updating system is considered in which data from multiple sources are sampled by
an energy harvesting sensor and transmitted to a remote destination through an erasure …

Throughput maximization with an average age of information constraint in fading channels

RV Bhat, R Vaze, M Motani - IEEE Transactions on Wireless …, 2020‏ - ieeexplore.ieee.org
In emerging fifth generation and beyond wireless communication systems, communication
nodes are expected to support information flows that are freshness-sensitive, along with …

Minimization of age of information in fading multiple access channels

RV Bhat, R Vaze, M Motani - IEEE Journal on Selected Areas …, 2021‏ - ieeexplore.ieee.org
Freshness of information is an important requirement in many real-time applications. It is
measured by a metric called the age of information (AoI), defined as the time elapsed since …

On the timeliness of the stalest stream among multiple status updating streams

T Zhang, Z Chen, Z Tian, L Zhen, Y Jia… - IEEE Internet of …, 2023‏ - ieeexplore.ieee.org
In practical status updating systems, most decisions made at monitors are based on diverse
data streams. Due to the cask effect, it can be cognised that the effectiveness of decisions is …

Age-optimal multi-flow status updating with errors: A sample-path approach

Y Sun, S Kompella - Journal of Communications and Networks, 2023‏ - ieeexplore.ieee.org
In this paper, we study an age of information minimization problem in continuous-time and
discrete-time status updating systems that involve multiple packet flows, multiple servers …

Fundamental limits of age-of-information in stationary and non-stationary environments

S Banerjee, R Bhattacharjee… - 2020 IEEE International …, 2020‏ - ieeexplore.ieee.org
We study the multi-user scheduling problem for minimizing the Age of Information (AoI) in
cellular wireless networks under stationary and non-stationary regimes. We derive …

Deep reinforcement learning for aoi aware vnf placement in multiple source systems

Z Chen, H Li, K Ota, M Dong - GLOBECOM 2022-2022 IEEE …, 2022‏ - ieeexplore.ieee.org
Age of Information (AoI) is a newly emergent performance metric to quantify the freshness of
data from destinations' perspectives. In this paper, we investigate and analyze AoI in the …

Age of information for multiple-source multiple-server networks

A Javani, M Zorgui, Z Wang - IEEE/ACM Transactions on …, 2024‏ - ieeexplore.ieee.org
Having timely and fresh knowledge about the current status of information sources is critical
in a variety of applications, where the status update arrives at the destination later than its …

Optimizing age-of-information in adversarial and stochastic environments

A Sinha, R Bhattacharjee - IEEE Transactions on Information …, 2022‏ - ieeexplore.ieee.org
We design efficient online scheduling policies to maximize the freshness of information
delivered to the users in a cellular network under both adversarial and stochastic channel …

Competitive algorithms for minimizing the maximum age-of-information

R Bhattacharjee, A Sinha - ACM SIGMETRICS Performance Evaluation …, 2020‏ - dl.acm.org
In this short paper, we consider the problem of designing a near-optimal competitive
scheduling policy to maximize the freshness of available information uniformly across N …