Home // International Journal On Advances in Networks and Services, volume 11, numbers 3 and 4, 2018 // View article

Time-Critical Data Delivery for Emergency Applications in Vehicle-to-Vehicle Communication

Authors:
Saleem Raza
Erik Neuhaus
Mesut Güneş

Keywords: Vehicular Ad-hoc Network (VANET); Vehicle-to- Vehicle (V2V) Communication; Medium Access Control (MAC); Time-Critical Traffic; Emergency Applications

Abstract:
Transmission of time-critical messages in accident situations is of paramount importance for safety applications in VANET. These messages always require very low latency, which is an important metric for these applications. In particular, they impose real-time requirements. The MAC layer is an important place to satisfy multitude of performance metrics and can be greatly exploited to achieve low latency. In this paper, we exploit the existing VeMAC protocol and modify its TDMA frame structure to improve its performance for time-critical emergency traffic. 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 transmission of such messages. The modified version of the VeMAC protocol results in improved performance for transmission of emergency traffic. The proposed protocol is evaluated through simulations. The results show great improvements and achieve lower latency in different scenarios.

Pages: 71 to 80

Copyright: Copyright (c) to authors, 2018. Used with permission.

Publication date: December 30, 2018

Published in: journal

ISSN: 1942-2644