Freshness on Demand: Optimizing Age of Information for the Query Process

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Abstrakt

Age of Information (AoI) has become an important concept in communications, as it allows system designers to measure the freshness of the information available to remote monitoring or control processes. However, its definition tacitly assumes that new information is used at any time, which is not always the case. Instead instants at which information is collected and used are dependent on a certain query process. We propose a model that accounts for the discrete time nature of many monitoring processes, by considering a pull-based communication model in which the freshness of information is only important when the receiver generates a query. We then define the Age of Information at Query (QAoI), a more general metric that fits the pull-based scenario, and show how its optimization can lead to very different choices from traditional push-based AoI optimization when using a Packet Erasure Channel (PEC).

OriginalsprogEngelsk
TitelICC 2021 - IEEE International Conference on Communications
Antal sider6
ForlagIEEE
Publikationsdato23 jun. 2021
Sider1-6
ISBN (Trykt)978-1-7281-7123-4
ISBN (Elektronisk)978-1-7281-7122-7
DOI
StatusUdgivet - 23 jun. 2021
Begivenhed2021 IEEE International Conference on Communications Workshops (ICC Workshops) - Montreal, Canada
Varighed: 14 jun. 202123 jun. 2021

Konference

Konference2021 IEEE International Conference on Communications Workshops (ICC Workshops)
Land/OmrådeCanada
ByMontreal
Periode14/06/202123/06/2021
NavnI E E E International Conference on Communications
ISSN1550-3607

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