A Survey of Data Distribution Mechanisms in VANET

Abstract

VANET has the characteristics of high-speed node movement, frequent link switching, etc., which may result in low system throughput, poor reliability, and delay during data distribution among nodes of VANET. Several data distribution methods have been proposed in the literature to improve the efficiency of distribution of data, which are divided into 3 categories in this paper based on whether or not to access Roadside Units and use assisted vehicles. Then we summarize the main mechanisms of those distribution methods and differences in distribution performance. Finally, the outlook for future work is given.