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Application of Rate Adaptation Algorithm on Road Safety in Vehicular Networks

Authors:
Kenneth Nwizege
Mauro Bottero

Keywords: DSRC; Vehicular Communication; IEEE802.11p; Rate Adaptation; Road Safety

Abstract:
Vehicular communications occur when two or more vehicles come into range with one another, to share data over wireless media. The applications of vehicular communication are far-reaching, from toll collection to collision avoidance. One of the goals of rate adaptation is to maximize throughput by exploiting the multiple transmission rates available for 802.11 devices by adjusting their transmission rates dynamically, based on to the time-varying and location dependent wireless channel conditions. In this paper, we present and study in detail Adaptive Context-Aware Rate Selection (ACARS) algorithm that is efficient in data transfer, energy utilization and road safety applications. The goal of ACARS is to select the rate that will yield a good throughput performance, with transmit power control and access point (AP) coordination to improve data transfer performance and safety application in Dedicated Short Range Communication (DSRC). From results obtained, ACARS is able to minimize the total transmit power in the presence of propagation processes and mobility of vehicles, by adapting to the rapidly varying channels conditions compared to other rate adaptation algorithms.

Pages: 22 to 28

Copyright: Copyright (c) IARIA, 2014

Publication date: June 22, 2014

Published in: conference

ISSN: 2327-2058

ISBN: 978-1-61208-348-3

Location: Seville, Spain

Dates: from June 22, 2014 to June 26, 2014