Blockchains within Vehicular Ad-hoc Networks (VANETs) have enjoyed different applications within literature. Certain characteristics, like privacy and data security, are necessary to create a secure ...network. Blockchains provide different characteristics that can benefit VANETs. Traditional blockchains do not translate well into the highly mobile environments like VANETs. Currently, literature yields progress in adapting these data structures into these networks. However, little discussion has been created about the bootstrapping requirements when nodes join a blockchain network. Bootstrapping requires downloading a large portion of the chain and can create large network loads depending on the chain size. This work sets out to provide a pruning technique demonstrations that prunes in specific time intervals to reduce network and storage load. This method removes unnecessary blocks that are no longer need due to age and irrelevancy to the current road conditions. A discussion on the rationale of why to prune a chain is conducted. Over all, pruning provides a reduction in the overall data sent over the network, which primarily comes from bootstrapping nodes.
Blockchains within Vehicular Ad-hoc Networks (VANETs) can solve issues relating to security, trust, and secure message dissemination. Platooning requires these traits to facilitate safe operation. ...However, traditional blockchains are not a good fit for this application. Modified blockchains are required to operate correctly within these environments. In this early work, a discussion on the packets required to operate a basic blockchain within a VANET platoon alongside a simulation are presented to demonstrate the burden of traditional blockchains in these environments and how future work can overcome these challenges.
Blockchain's use in Vehicular Ad-Hoc Network (VANET) research demonstrates blockchain technology provides useful attributes to allow for the safe and secure operation of VANET applications. Unbounded ...growth of blockchains poses a threat to the efficient operation of the MANET-like environment found within VANETs. Floating Genesis Blocks (FGB) can be used to preserve the state of the blockchain up to a certain point, and allows for the safe pruning of the chain without information loss. The early work present here compares two pruning techniques by size. A discussion of the results and recommendations for future research conclude the work.
