Average age of information in a multi-source M/M/1 queueing model with LCFS prioritized packet management

In this paper, we consider an M/M/1 status update system consisting of two independent sources, one server, and one sink. We consider the following last-come first-served (LCFS) prioritized packet management policy. When the system is empty, any arriving packet immediately enters the server; when the server is busy, a packet of a source waiting in the queue is replaced if a new packet of the same source arrives and the fresh packet goes at the head of the queue. We derive the average age of information (AoI) of the considered M/M/1 queueing model by using the stochastic hybrid systems (SHS) technique. Numerical results illustrate the effectiveness of the proposed packet management policy compared to several baseline policies.

Authors:
Moltafet Mohammad, Leinonen Markus, Codreanu Marian

Publication type:
B3 Article in conference proceedings

Place of publication:
2020 IEEE INFOCOM Conference on Computer Communications Workshops, INFOCOM WKSHPS 2020

Keywords:
6G Publication

Published:
10 August 2020

Full citation:
M. Moltafet, M. Leinonen and M. Codreanu, “Average Age of Information in a Multi-Source M/M/1 Queueing Model with LCFS Prioritized Packet Management,” IEEE INFOCOM 2020 – IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), Toronto, ON, Canada, 2020, pp. 303-308, doi: 10.1109/INFOCOMWKSHPS50562.2020.9162681

DOI:
https://doi.org/10.1109/INFOCOMWKSHPS50562.2020.9162681

Read the publication here:
http://urn.fi/urn:nbn:fi-fe2020111790895