Reducing Multi-hop Wireless Delay for High-Priority Applications in Vehicular Wireless Networks

Kuo Lung Wang, Tsan Pin Wang*, Chien-Chao Tseng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Vehicular wireless networks (VWNs) offer both high-priority safety and low-priority non-safety applications. In VWNs, the high-priority applications are urgent. Transmitting urgent information demands low delay and high bandwidth. When the traffic is heavy, how to reduce the multi-hop wireless delay will be critical for urgent information. In this paper, we propose a blocking strategy to preempt the transmission of low-priority vehicles and to decrease the number of contending vehicles. Thus, the multi-hop wireless delay of high-priority vehicles will be greatly reduced even if the traffic is heavy. Moreover, we also propose a mathematical model to evaluate the performance of the proposed strategy and compare the existing strategy. Performance results show that the proposed strategy can reduce the multi-hop wireless delay significantly.

Original languageEnglish
Pages (from-to)685-710
Number of pages26
JournalWireless Personal Communications
Volume81
Issue number2
DOIs
StatePublished - 1 Jan 2015

Keywords

  • IEEE 802.11p
  • Multi-hop delay
  • Vehicular wireless networks

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