Exploiting spatial locality for content placement in roadside-unit caching with delay constraint

Sok Ian Sou, Ciao Ling Lou, Yinman Lee

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

Abstract

To cope with the growing demands for mobile traffic in Vehicular ad hoc networks (VANET), Roadside-Unit (RSU) caching is considered as an effective way to reduce the downloading latency. In this paper, RSUs are grouped into disjoint clusters based on their spatial locality. Then in-cluster cache space is considered as an entity by means to increase local content diversity. We first use Markov model to derive the expected download data for delay downloading service under a given content placement. Then we propose two clustering algorithms to perform content allocation which repeatedly update the content placement with a lower download cost. We also explore the impact on the download cost under different simulation parameters, such as the RSU density, the number of contents and the length of download period.

Original languageEnglish
Title of host publicationProceedings - IEEE 17th International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages796-802
Number of pages7
ISBN (Electronic)9781728130248
DOIs
Publication statusPublished - 2019 Aug
Event17th IEEE International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019 - Fukuoka, Japan
Duration: 2019 Aug 52019 Aug 8

Publication series

NameProceedings - IEEE 17th International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019

Conference

Conference17th IEEE International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019
CountryJapan
CityFukuoka
Period19-08-0519-08-08

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence
  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems and Management
  • Information Systems
  • Safety, Risk, Reliability and Quality
  • Control and Optimization

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