Exploiting beacons for scalable broadcast data dissemination in VANETs


Share/Save/Bookmark

Schwartz, Ramon S. and Das, Kallol and Scholten, Hans and Havinga, Paul (2012) Exploiting beacons for scalable broadcast data dissemination in VANETs. In: 9th ACM International Workshop on Vehicular Inter-Networking, Systems, and Applications, VANET 2012, 25 June 2012, Low Wood Bay, Lake District, UK (pp. pp. 53-62).

[img] PDF
Restricted to UT campus only
: Request a copy
972kB
Abstract:Vehicular Ad-hoc Networks (VANETs) enable the timely broadcast dissemination of event-driven messages to interested vehicles. However, when dealing with broadcast communication, suppression techniques must be designed to prevent the so-called broadcast storm problem. Numerous suppression schemes aim to reduce broadcast redundancy by assigning vehicles to different delay values, i.e., time slots, that are inversely proportional to their distance to the sender. In this way, only the farthest vehicles would rebroadcast, thereby allowing for quick data dissemination. Despite many efforts, current delay-based schemes still suffer from high levels of contention and collision when the number of vehicles rebroadcasting nearly simultaneously is high in dense networks. Even choosing appropriate values for the total number of time slots does not prevent situations where simply no vehicle is assigned to the earliest time slot, what may result in high end-to-end delay. In this paper, we tackle such scalability issues with a scheme that controls with precision the density of vehicles within each time slot. To reach this goal, we exploit the presence of beacons, periodic messages meant to provide cooperative awareness in safety applications. Simulations results show that our protocol outperforms existing delay-based schemes and is able to disseminate data messages in a scalable, timely, and robust manner.
Item Type:Conference or Workshop Item
Copyright:© 2012 ACM
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:
Link to this item:http://purl.utwente.nl/publications/80836
Official URL:http://dx.doi.org/10.1145/2307888.2307899
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page