[ACM Press the fifth ACM international workshop - San Francisco, California, USA (2008.09.15-2008.09.15)] Proceedings of the fifth ACM international workshop on VehiculAr Inter-NETworking - VANET '08 - Data aggregation and roadside unit placement for a vanet traffic information system

✍ Scribed by Lochert, Christian; Scheuermann, Björn; Wewetzer, Christian; Luebke, Andreas; Mauve, Martin

• Book ID: 111974289
• Publisher: ACM Press
• Year: 2008
• Weight: 544 KB
• Volume: 0
• Category: Article
• ISBN: 1605581917
• DOI: 10.1145/1410043.1410054

✦ Synopsis

In this paper we investigate how a VANET-based traffic information system can overcome the two key problems of strictly limited bandwidth and minimal initial deployment. First, we present a domain specific aggregation scheme in order to minimize the required overall bandwidth. Then we propose a genetic algorithm which is able to identify good positions for static roadside units in order to cope with the highly partitioned nature of a VANET in an early deployment stage. A tailored toolchain allows to optimize the placement with respect to an application-centric objective function, based on travel time savings. By means of simulation we assess the performance of the resulting traffic information system and the optimization strategy.