University of Oulu

M. Moltafet, M. Leinonen and M. Codreanu, "Closed-Form Expression for the Average Age of Information in a Multi-Source M/G/1 Queueing Model," 2019 IEEE Information Theory Workshop (ITW), Visby, Sweden, 2019, pp. 1-5. doi: 10.1109/ITW44776.2019.8989346

Closed-form expression for the average age of information in a multi-source M/G/1 queueing model

Saved in:
Author: Moltafet, Mohammad1; Leinonen, Markus1; Codreanu, Marian2
Organizations: 1Centre for Wireless Communications – Radio Technologies, University of Oulu, Finland
2Department of Science and Technology, Linköping University, Sweden
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2020-02-18


In the context of the next generation wireless networks, freshness of status update packets is essential for enabling the services where a destination needs the most recent measurements of various sensors. In this paper, we study the information freshness of a multi-source M/G/1 first-come first-served (FCFS) queueing model, where each source independently generates status update packets according to a Poisson process. The information freshness of the status updates of each source is evaluated using the average age of information (AoI). To this end, we derive a closed-form expression for the average AoI of each source. As particular cases of our general expressions, we also derive closed-form expressions of the average AoI for both multi-source M/M/1 and single-source M/G/1 queueing models.

see all

ISBN: 978-1-5386-6900-6
ISBN Print: 978-1-5386-6901-3
Pages: 1 - 5
DOI: 10.1109/ITW44776.2019.8989346
Host publication: 2019 IEEE Information Theory Workshop (ITW) Aug 25-28, Visby, Gotland, Sweden
Conference: IEEE Information Theory Workshop
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: M. Codreanu would like to acknowledge the support of the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 793402 (COMPRESS NETS). This research has also been financially supported by Infotech Oulu and Academy of Finland 6Genesis Flagship (grant 318927) and Finnish Foundation for Technology Promotion.
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.