On scheduling vehicle-roadside data access

Yang Zhang, Jing Zhao, Guohong Cao

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

136 Scopus citations

Abstract

As vehicular networks become popular, more and more people want to access data from their vehicles. When many vehicles want to access data through a roadside unit, data scheduling becomes an important issue. In this paper, we identify some challenges in vehicle-roadside data access. As vehicles move pretty fast, the requests should be served quickly. Also, vehicles may upload data to the roadside unit, and hence the download and upload requests compete for the same bandwidth. To address these challenges, we propose several scheduling schemes. We first propose a basic scheduling scheme called D*S to consider both service deadline and data size. We then enhance it by using a single broadcast to serve multiple requests. Finally, we identify the effects of upload requests on data quality, and propose a Two-Step scheduling scheme to provide a balance between serving download and update requests. Simulation results show that the Two-Step scheduling scheme outperforms other scheduling schemes.

Original languageEnglish (US)
Title of host publicationVANET'07
Subtitle of host publicationProceedings of the Fourth ACM International Workshop on Vehicular Ad Hoc Networks
Pages9-18
Number of pages10
DOIs
StatePublished - Dec 1 2007
EventVANET'07: Fourth ACM International Workshop on Vehicular Ad Hoc Networks - Montreal, QC, Canada
Duration: Sep 10 2007Sep 10 2007

Publication series

NameVANET'07: Proceedings of the Fourth ACM International Workshop on Vehicular Ad Hoc Networks

Other

OtherVANET'07: Fourth ACM International Workshop on Vehicular Ad Hoc Networks
Country/TerritoryCanada
CityMontreal, QC
Period9/10/079/10/07

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Software

Fingerprint

Dive into the research topics of 'On scheduling vehicle-roadside data access'. Together they form a unique fingerprint.

Cite this