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Information Freshness and Packet Drop Rate Interplay in a Two-User Multi-Access Channel
Linköpings universitet, Institutionen för teknik och naturvetenskap, Kommunikations- och transportsystem. Linköpings universitet, Tekniska fakulteten.
Aalto Univ, Finland.
Univ Cyprus, Cyprus.
Univ Maryland, MD 20742 USA.
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2021 (Engelska)Ingår i: 2020 IEEE INFORMATION THEORY WORKSHOP (ITW), IEEE , 2021Konferensbidrag, Publicerat paper (Refereegranskat)
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.

Ort, förlag, år, upplaga, sidor
IEEE , 2021.
Nationell ämneskategori
Telekommunikation
Identifikatorer
URN: urn:nbn:se:liu:diva-181704DOI: 10.1109/ITW46852.2021.9457624ISI: 000713953900052ISBN: 9781728159621 (digital)OAI: oai:DiVA.org:liu-181704DiVA, id: diva2:1618034
Konferens
IEEE Information Theory Workshop (ITW), ELECTR NETWORK, apr 11-15, 2021
Anmärkning

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

Tillgänglig från: 2021-12-08 Skapad: 2021-12-08 Senast uppdaterad: 2021-12-08

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Fountoulakis, EmmanouilPappas, Nikolaos
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Kommunikations- och transportsystemTekniska fakulteten
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