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Impact of Transmission Delays Over Age of Information Under Finite Horizon Scheduling

Zancanaro, Alberto and Cisotto, Giulia and Munari, Andrea and Badia, Leonardo (2023) Impact of Transmission Delays Over Age of Information Under Finite Horizon Scheduling. IEEE CAMAD, 2023-11-06 - 2023-11-08, Edinburgh, Scotland.

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Abstract

Sensor communications in real-time systems may be required to report status updates to minimize the so-called age of information metric, which quantifies the freshness of exchanged data. This situation can be heavily impacted by the delays in data transmission, as some updates may reach the destination when their information content is already stale. In this paper, we consider the problem of scheduling sensing updates over a finite time horizon, and discuss the impact of their transmission delay on the resulting data freshness. We tackle the adjustments required for an offline schedule aimed at minimizing the average age of information which, as long as they do not cause the updates to go off the boundaries of the finite horizon, are only dependent on the average transmission delay. We derive a closed form expression for the average age of information, also verified through simulations, and the resulting performance is evaluated under different system conditions. This can be used to further explore the task of delivering timely system updates under general scenarios, e.g., when the statistics of the delay is not known a priori, or under other non idealities.

Item URL in elib:https://elib.dlr.de/199071/
Document Type:Conference or Workshop Item (Lecture)
Title:Impact of Transmission Delays Over Age of Information Under Finite Horizon Scheduling
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Zancanaro, AlbertoUniversity of PadovaUNSPECIFIEDUNSPECIFIED
Cisotto, GiuliaUniversity of Milano-BicoccaUNSPECIFIEDUNSPECIFIED
Munari, AndreaUNSPECIFIEDhttps://orcid.org/0000-0003-1506-2792UNSPECIFIED
Badia, LeonardoUniversity of PadovaUNSPECIFIEDUNSPECIFIED
Date:2023
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Age of Information; Sensor networks; Internet of Things; Data acquisition; Transmission delay; Machine to machine communication.
Event Title:IEEE CAMAD
Event Location:Edinburgh, Scotland
Event Type:international Conference
Event Start Date:6 November 2023
Event End Date:8 November 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Global Connectivity for People and Machines
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Munari, Dr. Andrea
Deposited On:16 Nov 2023 13:13
Last Modified:24 Apr 2024 20:59

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