On the Age of Status Updates in Unreliable Multi-Source M/G/1 Queueing Systems

The timeliness of status message delivery in communications networks is subjective to time-varying wireless channel transmissions. In this paper, we investigate the age of information (AoI) of each source in a multi-source M/G/1 queueing update system with active server failures. In particular, we a...

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Bibliographic Details
Published in:arXiv.org 2022-10
Main Authors: Muthukrishnan, Senthil Kumar, Dadlani, Aresh, Moradian, Masoumeh, Khonsari, Ahmad, Tsiftsis, Theodoros A
Format: Article
Language:English
Subjects:
Queuing theory
Random variables
Repair time
Servers
Online Access:Get full text
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Summary:The timeliness of status message delivery in communications networks is subjective to time-varying wireless channel transmissions. In this paper, we investigate the age of information (AoI) of each source in a multi-source M/G/1 queueing update system with active server failures. In particular, we adopt the method of supplementary variables to derive a closed-form expression for the average AoI in terms of system parameters, where the server repair time follows a general distribution and the service time of packets generated by independent sources is a general random variable. Numerical results are provided to validate the effectiveness of the proposed packet serving policy under different parametric settings.
ISSN:2331-8422