Mobility

A Robust Congestion Control Scheme for Fast and Reliable Dissemination of Safety Messages in VANETs

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Executive Summary

In this paper, the authors address the beacon congestion issue in Vehicular Ad Hoc NETworks (VANETs) due to its devastating impact on the performance of ITS applications. The periodic beacon broadcast may consume a large part of the available bandwidth leading to an increasing number of collisions among MAC frames, especially in case of high vehicular density. This will severely affect the performance of the Intelligent Transportation Systems (ITS) safety based applications that require timely and reliable dissemination of the event-driven warning messages.

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