Computation offloading and content caching with traffic flow prediction for Internet of Vehicles in edge computing

Zijie Fang, Xiaolong Xu*, Fei Dai, Lianyong Qi, Xuyun Zhang, Wanchun Dou

*Corresponding author for this work

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

Abstract

The development of the Internet of Vehicles (IoV) enables numerous emerging in-vehicle applications to accommodate users with various contents, thus enhancing their traveling experiences. In IoV, content decoding tasks are typically offloaded to edge servers for implementation, as edge computing is an admirable paradigm to provide low-latency services. However, as different vehicular users may request the same contents, processing these contents repeatedly leads to the waste of storage, computation and bandwidth resources. Therefore, fine-grained computation offloading and content caching are demanded in IoV. In this paper, a joint optimization method for computation offloading and content caching based on traffic flow prediction, named COC, is proposed. Firstly, traffic flow covered by each edge server is predicted by a modified deep spatiotemporal residual network (ST-ResNet). Secondly, the non-dominated sorting genetic algorithm III (NSGA-III) is leveraged to realize the many-objective optimization to shorten the execution time and reduce the energy consumption of computation and transmission in IoV. Finally, evaluated by real-world big data from Nanjing China, COC shows a great reduction in execution time and energy consumption of transmission and computation compared to other methods.

Original languageEnglish
Title of host publicationProceedings - 2020 IEEE 13th International Conference on Web Services, ICWS 2020
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages380-388
Number of pages9
ISBN (Electronic)9781728187860
DOIs
Publication statusPublished - 2020
Event13th IEEE International Conference on Web Services, ICWS 2020 - Virtual, Beijing, China
Duration: 18 Oct 202024 Oct 2020

Publication series

NameProceedings - 2020 IEEE 13th International Conference on Web Services, ICWS 2020

Conference

Conference13th IEEE International Conference on Web Services, ICWS 2020
CountryChina
CityVirtual, Beijing
Period18/10/2024/10/20

Keywords

  • computation offloading
  • content caching
  • edge computing
  • IoV
  • traffic flow prediction

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