Adaptive Creation and Migration of Time-series City Profiles based on Edge Computing

Fang Jing Wu, Yudong Zhao, Ling Jyh Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Time-series sensor data are used to create prediction models, called city profiles, for understanding city dynamics in the smart-city sector. These city profiles are typically created and updated by the Cloud using reported raw sensor data. However, continuously reporting raw sensor data is not energy efficient for boundary computing resources of a network. Thus, this work considers edge servers that are deployed on the boundary computing resources of a network to collaborate with the Cloud for adaptively mitigate city profiling tasks (i.e., creating city profiles) across an edge server and the Cloud. By maintaining the local city profiles on the edge or the global city profiles on the Cloud, either an edge or the Cloud can dynamically respond to user queries. However, there is a trade-off between the energy consumption of an edge and the response accuracy of the city profiles. This work designs an adaptive city profiling and synchronization approach for edges to decide when, where (i.e., an edge or the Cloud), and how to update and synchronize local and global city profiles such that the energy consumption of the edge is reduced while the accuracy of a city profile can be guaranteed. Extensive simulations are conducted using a real-world temperature dataset to evaluate the performance of the proposed approach. The simulation results indicate an average energy saving of 60% of edges compared with a typical Cloud-based approach while the required accuracy is fulfilled.

Original languageEnglish
Title of host publication2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1285-1290
Number of pages6
ISBN (Electronic)9781728175867
DOIs
Publication statusPublished - 2021 Sep 13
Event32nd IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2021 - Virtual, Helsinki, Finland
Duration: 2021 Sep 132021 Sep 16

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2021-September

Conference

Conference32nd IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2021
Country/TerritoryFinland
CityVirtual, Helsinki
Period2021/09/132021/09/16

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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