Title: CFT: A Cluster-based File Transfer Scheme for Highway,
Abstract: Effective file transfer between vehicles is fundamental to many emerging
vehicular infotainment applications in the highway Vehicular Ad Hoc Networks
(VANETs), such as content distribution and social networking. However, due to
fast mobility, the connection between vehicles tends to be short-lived and
lossy, which makes intact file transfer extremely challenging. To tackle this
problem, we presents a novel Cluster-based File Transfer (CFT) scheme for
highway VANETs in this paper. With CFT, when a vehicle requests a file, the
transmission capacity between the resource vehicle and the destination vehicle
is evaluated. If the requested file can be successfully transferred over the
direct Vehicular-to-Vehicular (V2V) connection, the file transfer will be
completed by the resource and the destination themselves. Otherwise, a cluster
will be formed to help the file transfer. As a fully-distributed scheme that
relies on the collaboration of cluster members, CFT does not require any
assistance from roadside units or access points. Our experimental results
indicate that CFT outperforms the existing file transfer schemes for highway
VANETs.