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The authors propose Veer, a peer selection algorithm for file exchange in vehicular ad hoc networks. The innovative aspect of Veer is that it relies on embedded GPS devices to determine individual mobility patterns and, consequently, to help select the peers that increase the probability that a file transfer succeeds. Transfer opportunities are computed in advance based on an estimation of the contact time window between a node and its selected peers. They show that such an opportunistic one-hop transfer mechanism leads to better results than traditional multi-hop file transfers both in terms of goodput and delivery ratio.
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