BIDS: Blockchain-Enabled Intrusion Detection System in Smart Cities
Meisam Sharifi Sani, Saeid Iranmanesh, Hamidreza Salarian, Raad Raad, Abbas Jamalipour
Abstract
The Internet of Vehicles (IoV) plays a significant role in shaping smart cities by integrating vehicles, infrastructure, and information and communication technologies (ICT). IoV allows vehicles to connect and exchange information with each other and other smart devices contributing in shaping smart cities. IoV enables real-time data exchange between vehicles and traffic management systems. By collecting and analysing data on traffic flow, congestion, and road conditions, cities can optimize traffic signal timings, dynamically reroute vehicles, and provide drivers with real-time traffic updates. This improves traffic efficiency, reduces congestion, and enhances overall transportation systems. However, there is a risk that malicious vehicles may provide false information and interfere, or in the worst-case scenario, cause chaos on the roads. In order to address this issue, we propose a Blockchain-enabled intrusion detection system (BIDS) for the IoV network, in which vehicles share their mobility patterns with the traffic management system. BIDS formulates the mobility pattern of the vehicles in the form of blocks that are changed together. The blocks are validated and confirmed as the vehicle reaches the next location as claimed. Otherwise, the following blocks will become invalid and obviously will not be considered in the traffic management system. Our simulations show that the BIDS method can detect up to 98% of malicious vehicles when only 5% of the vehicles are malicious, and up to 85% when 40% of the vehicles are malicious.