In VANETS,

The combination of IoT and vehicular ad hoc networks is a promising field. It is called IoV. There are several factors under the umbrella of IoV such as exploring the readability and social factor of IoV.

I suggest you the following articles:

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A survey on vehicular cloud computing

http://dl.acm.org/citation.cfm?id=2608954

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The Future of In-Vehicle Cloud Computing

http://cloudtimes.org/2011/07/06/the-future-of-in-vehicle-cloud-computing/

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Rethinking Vehicular Communications: Merging VANET with cloud computing

http://www.academia.edu/2627872/Rethinking_Vehicular_Communications_Merging_VANET_with_cloud_computing

Thanks Ahmed Yassin . Can I suggest routing problems in vhehicular cloud