Traffic safety applications using vehicle-to-vehicle (V2V) communication is an emerging and promising area within the ITS environment. Many of these applications require real-time communication with high reliability. To meet a real-time deadline, timely and predictable access to the channel is paramount. The medium access method used in 802.11p, CSMA with collision avoidance, does not guarantee channel access before a finite deadline. The well-known property of CSMA is undesirable for critical communications scenarios. The simulation results reveal that a specific vehicle is forced to drop over 80% of its packets because no channel access was possible before the next message was generated. To overcome this problem, we propose to use STDMA for real-time data traffic between vehicles. The realtime properties of STDMA are investigated by means of the highway road simulation scenario, with promising results.
Performance of Vehicle-to-Vehicle Communication using IEEE 802.11p in Vehicular Ad-hoc Network Environment
2013-03-27
oai:zenodo.org:4020371
International Journal of Network Security & Its Applications (IJNSA) 5(2) 143-170
Article (Journal)
Electronic Resource
English
DDC: | 629 |
Evaluation of the IEEE 802.11p MAC Method for Vehicle-to-Vehicle Communication
British Library Conference Proceedings | 2008
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