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Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios

Barakat, Basel; Keates, Simeon; Wassell, Ian; Arshad, Kamran

Authors

Basel Barakat

Simeon Keates

Ian Wassell

Kamran Arshad



Abstract

Real-time systems make their decisions based on information communicated from sensors. Consequently, delivering information in a timely manner is critical to such systems. In this paper, a policy for delivering fresh information (or minimising the Peak Age of the information) is proposed. The proposed policy, i.e., the Adaptive Status Arrivals Policy (ASAP), adaptively controls the timing between updates to enhance the Peak Age (PA) performance of real-time systems. Firstly, an optimal value for the inter-arrival rate is derived. Afterwards, we implemented the policy in three scenarios and measured the ASAP PA performance. The experiments showed that ASAP is able to approach the theoretical optimal PA performance. Moreover, it can deliver fresh information in scenarios where the server is located in the cloud.

Citation

Barakat, B., Keates, S., Wassell, I., & Arshad, K. (2019, July). Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios. Presented at HCII: International Conference on Human-Computer Interaction, Orlando, US

Presentation Conference Type Conference Paper (Published)
Conference Name HCII: International Conference on Human-Computer Interaction
Start Date Jul 26, 2019
End Date Jul 31, 2019
Online Publication Date Jul 4, 2019
Publication Date 2019
Deposit Date Jul 24, 2020
Publisher Springer
Pages 419-430
Series Title Lecture Notes in Computer Science
Series Number 11573
Series ISSN 0302-9743
Book Title Universal Access in Human-Computer Interaction. Multimodality and Assistive Environments
ISBN 9783030235628
DOI https://doi.org/10.1007/978-3-030-23563-5_33
Keywords Real time systems, Cloud Adaptive systems, Information freshness, Peak Age of Information
Public URL http://researchrepository.napier.ac.uk/Output/2676254


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