Context-aware rate-adaptive beaconing for efficient and scalable vehicular safety communication

Sebastian, Alvin, Tang, Maolin, Feng, Yanming, & Looi, Mark (2012) Context-aware rate-adaptive beaconing for efficient and scalable vehicular safety communication. International Journal of Communications, Network and System Sciences, 5(9), pp. 534-547.

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Vehicular safety applications, such as cooperative collision warning systems, rely on beaconing to provide situational awareness that is needed to predict and therefore to avoid possible collisions. Beaconing is the continual exchange of vehicle motion-state information, such as position, speed, and heading, which enables each vehicle to track its neighboring vehicles in real time. This work presents a context-aware adaptive beaconing scheme that dynamically adapts the beaconing repetition rate based on an estimated channel load and the danger severity of the interactions among vehicles. The safety, efficiency, and scalability of the new scheme is evaluated by simulating vehicle collisions caused by inattentive drivers under various road traffic densities. Simulation results show that the new scheme is more efficient and scalable, and is able to improve safety better than the existing non-adaptive and adaptive rate schemes.

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ID Code: 53607
Item Type: Journal Article
Refereed: Yes
Keywords: VANET, DSRC, Vehicular Safety Communication, Context-Aware
DOI: 10.4236/ijcns.2012.59064
ISSN: 1913-3715
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > OTHER INFORMATION AND COMPUTING SCIENCES (089900) > Information and Computing Sciences not elsewhere classified (089999)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Scientific Research Publishing
Deposited On: 16 Sep 2012 23:10
Last Modified: 19 Sep 2012 12:39

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