Network coding approach for vehicle-to-vehicle communication: Principles, protocols and benefits

Information dissemination in vehicular networks is becoming a hot topic of research in the field of Vehicle-to-Vehicle (V2V) communications, since efficient data exchange is needed for most crucial applications (road accident warning, traffic congestion warning ...). Many protocols have been then proposed for the sake of disseminating information with high reachability and low end-to-end delay in limited bandwidth. In this work, we propose to review the design of some of dissemination protocols based on the network coding technique. Newly adopted in wireless ad hoc networks, network coding paradigm seems to be a promising solution for data dissemination in vehicular environment. The goal of this work is then to classify the different network coding based protocols appeared in the literature and reveal the gain achieved once this technique is applied. To this end, a summary table for a comparative study of the numerous retained protocols is presented.