University of Oulu

M. Moltafet, M. Leinonen and M. Codreanu, "Source-Aware Packet Management for Computation-Intensive Status Updating: MGF of the AoI," 2021 17th International Symposium on Wireless Communication Systems (ISWCS), 2021, pp. 1-6, doi: 10.1109/ISWCS49558.2021.9562231

Source-aware packet management for computation-intensive status updating : MGF of the AoI

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Author: Moltafet, Mohammad1; Leinonen, Markus1; Codreanu, Marian2
Organizations: 1Centre for Wireless Communications – Radio Technologies University of Oulu, Finland
2Department of Science and Technology Link¨oping University, Sweden
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2021
Publish Date: 2021-12-10


We consider a multi-source status update system consisting of two independent sources and one server. The packets of different sources are generated according to a Poisson process and served according to an exponentially distributed service time. We assume that the received status update packets need further processing before being used (hence, computation-intensive). This is mathematically modeled by introducing an additional server at the sink node. The sink server serves the packets according to an exponentially distributed service time. We derive the moment generating function (MGF) of the AoI of each source under a source-aware packet management policy. According to this policy, when a server (either the transmitter or sink server) is busy at the arrival of a packet, the packet currently under service is preempted only if the arriving packet is from the same source (hence, source-aware). Numerical results are provided to assess the results.

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Series: International Symposium on Wireless Communication Systems
ISSN: 2154-0217
ISSN-E: 2154-0225
ISSN-L: 2154-0217
ISBN: 978-1-7281-7432-7
ISBN Print: 978-1-7281-7433-4
Pages: 1 - 6
DOI: 10.1109/ISWCS49558.2021.9562231
Host publication: 17th International Symposium on Wireless Communication Systems, ISWCS 2021
Conference: International Symposium on Wireless Communication Systems
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This research has been financially supported by the Infotech Oulu, the Academy of Finland (grant 323698), and Academy of Finland 6Genesis Flagship (grant 318927). The work of M. Leinonen has also been financially supported in part by the Academy of Finland (grant 319485). M. Moltafet would like to acknowledge the support of Nokia, Riitta ja Jorma J. Takanen, and Tauno Tönning Foundations.
Academy of Finland Grant Number: 323698
Detailed Information: 323698 (Academy of Finland Funding decision)
318927 (Academy of Finland Funding decision)
319485 (Academy of Finland Funding decision)
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