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Advances in vehicular communications technology are making content distribution to vehicles more effective and increasingly more popular. This paper presents state of the art technologies and protocols for content distribution in VANETs. Major challenges are Internet access spectrum scarcity, mobility, connectivity intermittence and scalability. Aspects(More)
Generally vehicles in VANETs should periodically broadcast safety messages. Since safety messages contain traffic related information and are sensitive to location privacy, it is essential to ensure anonymity, authenticity and traceability in broadcast. These conflicting requirements make it difficult to design a secure communication scheme for VANETs. In(More)
The throughput of mobile ad hoc networks subject to disruption, loss and interference can be significantly improved with the use of network coding. However, network coding implies extra work for forwarders. Selfish forwarders may prefer to simply forward packets without coding them because of the processing overhead introduced by network coding. This is(More)
The performance of mobile ad hoc network transmissions subject to disruption, loss, interference, and jamming can be significantly improved with the use of network coding NC. However, NC requires extra work for forwarders, including additional bandwidth consumption due to transmitting overheads for redundant NC packets and additional processing due to(More)
Content downloading from vehicles is becoming increasingly popular, but it also meets challenges due to the limited number of road-side units (RSUs) and the expensive cost of 3G/LTE downloads. Cooperative LTE + vehicle-to-vehicle (V2V) downloading schemes can significantly improve the efficiency and reduce costs. However, selfish users are motivated to(More)
Peer-to-peer based cooperative schemes significantly improved the efficiency of content downloading in vehicular networks. However, uncooperative behavior of peers can severely degrade the system performance, e.g. some vehicles may avoid downloading original data chunks to save the cost of 3G connection, and choose to be a free-rider. On the other hand, if(More)
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