The steady-state distribution of rehealing delay in an intermittently connected highway VANET

Jeng Ji Huang, Yu Ting Tseng

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A vehicular ad hoc network may suffer from intermittent connectivity. When a network disconnection occurs during message delivery, it can be restored by a temporal relay, i.e., a store-carry-forward (SCF) relay. There have been numerous previous works discussing the rehealing delay, which is the delay required to restore a network disconnection by an SCF relay. However, most of them neglect the dependence of the restoration of a network disconnection on that of the previous one. As a result, their results would become invalid when a long-distance delivery of messages is necessary. To address this problem, we discuss how the restoration of a network disconnection can be affected by that of the previous one, from which an embedded Markov chain is developed to obtain the steady-state probability distribution of rehealing delay. Simulation results show that our analysis is highly accurate, as compared to previous works.

Original languageEnglish
Article number8435929
Pages (from-to)10010-10021
Number of pages12
JournalIEEE Transactions on Vehicular Technology
Volume67
Issue number10
DOIs
Publication statusPublished - 2018 Oct

Keywords

  • Vehiclular ad hoc network (VANET)
  • embedded Markov chain (EMC)
  • rehealing delay
  • steady state distribution
  • store-carry-forward (SCF)

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

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