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Emergency Optimized Low Latency MAC Protocol for VANETs based on VeMAC

Authors:
Erik Neuhaus
Saleem Raza
Mesut Güneş

Keywords: Vehicular ad-hoc network (VANET); Medium Access Control (MAC); Vehicle-to-Vehicle (V2V); VeMAC

Abstract:
Latency is an important metric for time-critical safety applications in vehicular ad-hoc networks (VANETs). Medium access control (MAC) protocol can be greatly exploited to achieve low latency. In this paper, we modify the existing VeMAC protocol frame structure to enhance its latency aspects for time-critical applications. We introduce additional emergency slots for transmission of emergency messages so that vehicles with time-critical emergency messages do not have to wait for their turn for the transmission of such messages. Our modified low latency version of the existing VeMAC protocol shows great improvements in latency for transmission of emergency messages. We analyze the VeMAC protocol and the proposed protocol through simulation and show that the proposed MAC achieves low latency under different scenarios.

Pages: 26 to 31

Copyright: Copyright (c) IARIA, 2017

Publication date: July 23, 2017

Published in: conference

ISSN: 2327-2058

ISBN: 978-1-61208-573-9

Location: Nice, France

Dates: from July 23, 2017 to July 27, 2017