Effective Emergency-Warning Message Transmission in the Vehicle-to-Vehicle Communication Environment 


Vol. 37,  No. 1, pp. 1-8, Jan.  2012


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  Abstract

In this paper, we propose an algorithm to improve collision avoidance in Vehicle-to-Vehicle (V2V) networks based on IEEE 802.11p. Since IEEE 802.11p adopts CSMA/CA as a multiple access scheme and an emergency warning message (EWM) is delivered to behind vehicles in a multi-hop manner, due to transmission collision, the more vehicles in the vehicle chain results in a longer delay. The longer delay increases the possibility of a rear-end collision. In order to ensure message reception with low latency, we consider implicit acknowledgement of a broadcasted EWM message and propose an algorithm to reduce redundant message transactions, called Two-Way Implicit Acknowledgement (TWIA). By simulations, we show that our proposed algorithm can reduce the latency until the last car receives the message by 9% and the success rate every car receives the message within 0.7sec by 12% at 100 fixed-number-of-car environment.

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  Cite this article

[IEEE Style]

J. Byun and S. Kwon, "Effective Emergency-Warning Message Transmission in the Vehicle-to-Vehicle Communication Environment," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 1, pp. 1-8, 2012. DOI: .

[ACM Style]

Jaeuk Byun and Sungoh Kwon. 2012. Effective Emergency-Warning Message Transmission in the Vehicle-to-Vehicle Communication Environment. The Journal of Korean Institute of Communications and Information Sciences, 37, 1, (2012), 1-8. DOI: .

[KICS Style]

Jaeuk Byun and Sungoh Kwon, "Effective Emergency-Warning Message Transmission in the Vehicle-to-Vehicle Communication Environment," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 1, pp. 1-8, 1. 2012.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880