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Information Freshness and Packet Drop Rate Interplay in a Two-User Multi-Access Channel
Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering.
Aalto Univ, Finland.
Univ Cyprus, Cyprus.
Univ Maryland, MD 20742 USA.
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2021 (English)In: 2020 IEEE INFORMATION THEORY WORKSHOP (ITW), IEEE , 2021Conference paper, Published paper (Refereed)
Abstract [en]

In this work, we combine the two notions of timely delivery of information to study their interplay; namely, deadline-constrained packet delivery due to latency constraints and freshness of information. More specifically, we consider a two-user multiple access setup with random-access, in which user 1 is a wireless device with a queue and has external bursty traffic which is deadline-constrained, while user 2 monitors a sensor and transmits status updates to the destination. We provide analytical expressions for the throughput and drop probability of user 1, and an analytical expression for the average Age of Information (AoI) of user 2 monitoring the sensor. The relations reveal that there is a trade-off between the average AoI of user 2 and the drop rate of user 1: the lower the average AoI, the higher the drop rate, and vice versa. Simulations corroborate the validity of our theoretical results.

Place, publisher, year, edition, pages
IEEE , 2021.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-181704DOI: 10.1109/ITW46852.2021.9457624ISI: 000713953900052ISBN: 9781728159621 (electronic)OAI: oai:DiVA.org:liu-181704DiVA, id: diva2:1618034
Conference
IEEE Information Theory Workshop (ITW), ELECTR NETWORK, apr 11-15, 2021
Note

Funding Agencies|Swedish Research Council (VR)Swedish Research Council; CENIIT; Academy of FinlandAcademy of FinlandEuropean Commission [317726]

Available from: 2021-12-08 Created: 2021-12-08 Last updated: 2021-12-08

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Fountoulakis, EmmanouilPappas, Nikolaos
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf