Conference paper Open Access

Data Freshness in Mixed-Memory Intermittently-Powered Systems

Broadhead, James Scott; Pawełczak, Przemysław


DataCite XML Export

<?xml version='1.0' encoding='utf-8'?>
<resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd">
  <identifier identifierType="DOI">10.5281/zenodo.4756047</identifier>
  <creators>
    <creator>
      <creatorName>Broadhead, James Scott</creatorName>
      <givenName>James Scott</givenName>
      <familyName>Broadhead</familyName>
      <affiliation>Delft University of Technology</affiliation>
    </creator>
    <creator>
      <creatorName>Pawełczak, Przemysław</creatorName>
      <givenName>Przemysław</givenName>
      <familyName>Pawełczak</familyName>
      <affiliation>Delft University of Technology</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Data Freshness in Mixed-Memory Intermittently-Powered Systems</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2021</publicationYear>
  <dates>
    <date dateType="Issued">2021-05-13</date>
  </dates>
  <resourceType resourceTypeGeneral="ConferencePaper"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/4756047</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.4756046</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Age of Information (AoI) is a key metric to understand data freshness in Internet of Things (IoT) devices. In this paper we analyse an intermittently-powered IoT sensor&amp;mdash;with mixed-memory (volatile and non-volatile) architecture&amp;mdash;that uses a Time-Dependent Checkpointing (TDC) scheme. We derive the average Peak Age of Information (PAoI) and average AoI of the system, and use these metrics to understand which device parameters most significantly influence performance. We go on to consider how the average PAoI of a mixed-memory system compares with entirely volatile or entirely non-volatile architecture, and also introduce an alternative TDC strategy to improve system resilience in unpredictable environmental conditions.&lt;/p&gt;</description>
  </descriptions>
  <fundingReferences>
    <fundingReference>
      <funderName>European Commission</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">10.13039/501100000780</funderIdentifier>
      <awardNumber awardURI="info:eu-repo/grantAgreement/EC/H2020/814215/">814215</awardNumber>
      <awardTitle>European Training Network in Low-energy Visible Light IoT Systems</awardTitle>
    </fundingReference>
  </fundingReferences>
</resource>
58
40
views
downloads
All versions This version
Views 5857
Downloads 4040
Data volume 14.2 MB14.2 MB
Unique views 5251
Unique downloads 3838

Share

Cite as