Blockchain-Enabled Vehicular Ad Hoc Networks: A Systematic Literature Review
2022
Muhammad Saad | Muhammad Khalid Khan | Maaz Bin Ahmad
This systematic literature review provides an extensive categorization of the blockchain-enabled applications across the domain of vehicular ad hoc networks (VANETs). Within the paradigm of distributed ledger technology (DLT), the communication models and practices for VANETs have been revolutionized. An analytical review and a survey were conducted to explore the advancements of blockchain and VANETs. The techniques, limitations, and advantages of blockchain deployment in VANETs are discussed for the effective implementation of a decentralized network. To this end, 68 studies were selected on the basis of the procedural steps to provide a comprehensive overview of blockchain and the smart contracts in VANETs. In particular, a decentralized communication model is also proposed for the advanced implementation of blockchain in VANETs. Researchers and practitioners are being attracted to these technologies for applications for various industrial sectors. Therefore, this study also emphasizes the identification of any blockchain-related open issues for future prospects. The comprehension of blockchain applications for the Internet of Vehicles (IoV) is also explored in order to fill the research gap on advanced communication networks across the Internet of Things.
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