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DSRC-Based Channel Allocation Algorithm for Emergency Message Dissemination in VANETs

  • Min-Woo Ryu
  • Si-Ho Cha
  • Kuk-Hyun Cho
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6935)

Abstract

VANET (Vehicular Ad-hoc Network) is divided into V2V (Vehicle-to-Vehicle) communication and V2I (Vehicle to Infrastructure) communication. V2V requires no infrastructure or roadside devices and vehicles communicate with each other using wireless inter-vehicle communication. V2I requires some infrastructure such as RSUs (Road Side Units). OBUs (On Board Units) installed in vehicles can access to backbone networks by using RSUs. Unlike MANET (Mobile Ad-hoc Network), VANET requires a mechanism to accommodate the environment that the moving speed of vehicles is very fast and the network topology changes frequently. VANET can use IEEE 1609.4 that supports multi-channel operation. The multi-channel approach of IEEE 1609.4 uses orthogonal channels to communicate between RSU and OBU. However, if emergency messages should be processed in high priority, the delay time will be increased because the multi-channel approach makes a fair share of available channels. Therefore, this paper proposes DMAE (DSRC-based Multi-Channel Allocation for Emergency Message Dissemination) algorithm to resolve this problem. DMAE allocates the highest bandwidth channel to the urgent message firstly, and guarantees QoS between RSU and OBU through periodic channel switching. Simulation results using ns-2 show performance improvement in terms of end-to-end delay and emergency message delivery rate.

Keywords

VANET Vehicle to Infrastructure Channel Allocation Multi-Channel Maximized Bandwidth 

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References

  1. 1.
    IEEE 1609.4 SWG: 1609.4-2010 - IEEE Standard for Wireless Access in Vehicular Environments (WAVE) - Multi-channel Operation. IEEE, Los Alamitos (2010)Google Scholar
  2. 2.
    IUR-R TF.460-4: Stand-Frequency and Time-Signal Emissions. IUR (1986) Google Scholar
  3. 3.
    IEEE 1609.1 SWG: 1609.1-2006 - IEEE Trial-Use Standard for Wireless Access in Vehicular Environments (WAVE) - Resource Manager. IEEE, Los Alamitos (2006)Google Scholar
  4. 4.
    IEEE 1609.2 SWG: 1609.2-2006 - IEEE Trial-Use Standard for Wireless Access in Vehicular Environments - Security Services for Applications and Management Messages. IEEE, Los Alamitos (2006)Google Scholar
  5. 5.
    IEEE 1609.3 SWG: 1609.3-2010 - IEEE Standard for Wireless Access in Vehicular Environments (WAVE) - Networking Services. IEEE, Los Alamitos (2010)Google Scholar
  6. 6.
    IEEE 802.11p SWG: Draft Amendment to Standard for Information Technology -Telecommunication and Information Exchange between Systems - Local and Metropolitan networks-Specific Requirements - part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Amendment: Wireless Access I Vehicular Environments. IEEE, Los Alamitos (2009)Google Scholar
  7. 7.
    ASTM E2213 Std: Standard Specification for Telecommunications and Information Exchange Between Roadside and Vehicle Systems - 5 GHz Band Dedicated Short Range Communications (DSRC) Medium Access Control (MAC) and Physical Layer (PHY) Specifications. IEEE, Los Alamitos (2010)Google Scholar
  8. 8.
    Morgan, Y.L.: Review Article Managing DSRC and WAVE Standards Operations in a V2V Scenario. International Journal of Vehicular Technology, Hindawi (2010)Google Scholar
  9. 9.

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Min-Woo Ryu
    • 1
  • Si-Ho Cha
    • 2
  • Kuk-Hyun Cho
    • 1
  1. 1.Dept. of Computer ScienceKwangwoon UniversitySeoulSouth Korea
  2. 2.Dept. of Multimedia ScienceChungwoon UniversityChungnamSouth Korea

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