Context severity based opportunistic service reprioritization for IEEE 802.11p VANETs

Mohammad A. Salahuddin, Ala Al-Fuqaha, Frederic Jacquelin, Yohan Shim

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

2 Citations (Scopus)

Abstract

IEEE 802.11p Wireless Access for Vehicular Environments (WAVE) is the approved communication protocol for Vehicular Ad-hoc Networks (VANETs) and Intelligent Transportation System (ITS) applications. WAVE offers service differentiation by prioritizing packets based on an application's requested QoS. These priorities are static and do not account for network load or vehicle's context severity. In this paper, we propose a novel opportunistic service reprioritization (OSR) technique for IEEE 802.11p (WAVE). It dynamically promotes and/or demotes vehicle's load to different access categories, by taking into account the vehicle's context severity and network link layer bounds. We show the feasibility of our approach by formulating the opportunistic service reprioritization technique as a Linear Programming (LP) problem and solve it to guarantee optimal QoS with respect to severity for all access categories. We compare our opportunistic service reprioritization technique with WAVE and show significant improvement. The weighted average delay in OSR outperforms classical WAVE, on average by 90%.

Original languageEnglish
Title of host publication2013 9th International Wireless Communications and Mobile Computing Conference, IWCMC 2013
Pages1623-1628
Number of pages6
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 9th International Wireless Communications and Mobile Computing Conference, IWCMC 2013 - Cagliari, Sardinia, Italy
Duration: 1 Jul 20135 Jul 2013

Publication series

Name2013 9th International Wireless Communications and Mobile Computing Conference, IWCMC 2013

Conference

Conference2013 9th International Wireless Communications and Mobile Computing Conference, IWCMC 2013
Country/TerritoryItaly
CityCagliari, Sardinia
Period1/07/135/07/13

Keywords

  • Context severity
  • IEEE 802.11p
  • Opportunistic service reprioritization
  • Service differentiation
  • VANETs
  • Vehicular Ad hoc networks
  • WAVE
  • Wireless access in vehicular environment

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