Computer Science > Performance
[Submitted on 24 Dec 2019 (v1), last revised 28 Sep 2020 (this version, v4)]
Title:Deadline-aware Scheduling for Maximizing Information Freshness in Industrial Cyber-Physical System
View PDFAbstract:Age of Information is an interesting metric that captures the freshness of information in the underlying applications. It is a combination of both packets inter-arrival time and packet transmission delay. In recent times, advanced real-time systems rely on this metric for delivering status updates as timely as possible. This paper aims to accomplish optimal transmission scheduling policy to maintain the information freshness of real-time updates in the industrial cyber-physical systems. Here the coexistence of both cyber and physical units and their individual requirements to provide the quality of service is one of the critical challenges to handle. A greedy scheduling policy called deadline-aware highest latency first has been proposed for this purpose. This paper also gives the analytical proof of its optimality, and finally, the claim is validated by comparing the performance of our algorithm with other scheduling policies by extensive simulations.
Submission history
From: Devarpita Sinha [view email][v1] Tue, 24 Dec 2019 12:15:59 UTC (1,377 KB)
[v2] Mon, 24 Feb 2020 04:58:26 UTC (1,377 KB)
[v3] Fri, 25 Sep 2020 11:32:09 UTC (1,295 KB)
[v4] Mon, 28 Sep 2020 07:22:17 UTC (1,295 KB)
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