A novel data broadcast strategy for traffic information query in the VANETs

Authors:
Xinjing Wang;Longjiang Guo;Jinbao Li;Meirui Ren
Affiliations:
School of Computer Science and Technology, Heilongjiang University, China;School of Computer Science and Technology, Heilongjiang University, China,Key Laboratory of Database and Parallel Computing, Heilongjiang, China;School of Computer Science and Technology, Heilongjiang University, China,Key Laboratory of Database and Parallel Computing, Heilongjiang, China;School of Computer Science and Technology, Heilongjiang University, China,Key Laboratory of Database and Parallel Computing, Heilongjiang, China
Venue:
WAIM'13 Proceedings of the 14th international conference on Web-Age Information Management
Year:
2013

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Abstract

This paper proposes a data broadcast strategy for traffic information query. Traffic information query is an important application in VANETs. Real-time traffic information query makes users to select path in a short time. By this data broadcast strategy, traffic information query can be quick and accurate after data is broadcast and forwarded. According to the restricted condition in the strategy, the vehicles broadcast their packets, and update, combine-forward or drop the data after receiving them in VANETs. In this way, more vehicles can receive data from source region. This algorithm can reduce the redundant data and control the communication congestion effectively. This paper adopts NS2 and SUMO as simulation platform. Simulation results show that, data collision rate is no more than 30%, and information area coverage rate reaches more than 80% with the strategy proposed in this paper after setting proper parameters.