Data Freshness Optimization on Networked Intermittent Systems

Hao Jan Huang, Wen Sheng Lim, Chia Heng Tu, Chun Feng Wu, Yuan Hao Chang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A networked intermittent system (NIS) is often deployed in the field for environmental monitoring, where sink nodes are responsible for relaying the data captured by sensors to a central system. To evaluate the quality of the captured monitoring data, Age of Information (AoI) is adopted to quantify the freshness of the data received by the central server. As the sink nodes are powered by ambient energy sources (e.g., solar and wind), the energy-efficient design of the sink nodes is crucial in order to improve the system-wide AoI. This work proposes the energy-efficient sink node design to save energy and extend system uptime. We devise an AoI-aware data forwarding algorithm based on the branch-and-bound (B&B) paradigm for deriving the optimal solution offline. In addition, an AoI-aware data forwarding algorithm is developed to approximate the optimal solution during runtime. The experimental results show that our solution can greatly improve the average data freshness for 148% against existing well-known strategies and achieves 91 % performance of the optimal solution. Compared with the state-of-the-art algorithm, our energy-efficient design can deliver better A3oI results by up to 9.6%.

Original languageEnglish
Title of host publication2023 Design, Automation and Test in Europe Conference and Exhibition, DATE 2023 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9783981926378
DOIs
StatePublished - 2023
Event2023 Design, Automation and Test in Europe Conference and Exhibition, DATE 2023 - Antwerp, Belgium
Duration: 17 Apr 202319 Apr 2023

Publication series

NameProceedings -Design, Automation and Test in Europe, DATE
Volume2023-April
ISSN (Print)1530-1591

Conference

Conference2023 Design, Automation and Test in Europe Conference and Exhibition, DATE 2023
Country/TerritoryBelgium
CityAntwerp
Period17/04/2319/04/23

Keywords

  • Age of Information (AoI)
  • Data freshness
  • energy harvesting (EH)
  • net-worked intermittent systems (NESs)

Fingerprint

Dive into the research topics of 'Data Freshness Optimization on Networked Intermittent Systems'. Together they form a unique fingerprint.

Cite this