Title: A reliable and timely medium access control protocol for vehicular ad hoc networks

Authors: Lida Rezazade; Hadi S. Aghdasi; Seyed Ali Ghorashi; Maghsoud Abbaspour

Addresses: Cognitive Telecommunications Research Group, Electrical Engineering Department, Shahid Beheshti University G.C., Evin 1983963113, Tehran, Iran ' Wireless Networking Laboratory, Computer Engineering Department, Shahid Beheshti University G.C., Evin 1983963113, Tehran, Iran ' Cognitive Telecommunications Research Group, Electrical Engineering Department, Shahid Beheshti University G.C., Evin 1983963113, Tehran, Iran ' Wireless Networking Laboratory, Computer Engineering Department, Shahid Beheshti University G.C., Evin 1983963113, Tehran, Iran

Abstract: Many vehicular safety applications can be implemented more easily and practically by using reliable and real-time communications between vehicles and roadside infrastructures. Neither schedule-based nor contention-based conventional MAC protocols can properly satisfy the safety requirements of such applications. In contention-based protocols, packets may experience unbounded delays and schedule-based protocols are sensitive to users' motion. In this paper, a new STDMA MAC protocol which provides both reliable and real-time medium access is introduced. Simulation results show that the proposed protocol has succeeded in providing an acceptable level of reliable and real-time communications, simultaneously.

Keywords: VANETs; vehicular ad hoc networks; MAC reliability; medium access control; IVC; intervehicular communications; reliable communications; real-time communications; vehicle safety; simulation.

DOI: 10.1504/IJAHUC.2013.052864

International Journal of Ad Hoc and Ubiquitous Computing, 2013 Vol.12 No.4, pp.216 - 224

Received: 16 May 2011
Accepted: 01 Dec 2011
Published online: 28 Mar 2013 *

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