Abstract
An autonomous vehicle is a car that drives itself to its destination without driver intervention. Autonomous driving provides driver convenience and prevents accidents caused by driver carelessness. Autonomous vehicles recognize external environments using sensors such as cameras and riders. In addition, autonomous vehicles collect information by using vehicle-to-everything communication in places they do not recognize. During vehicle-to-everything communication, vehicle-to-infrastructure communication communicates with the infrastructure installed on the road and receives information. In other words, the autonomous vehicle receives information from the infrastructure located in an unrecognized place and grasps the road conditions. However, because infrastructure is expensive to install and maintain, technology that uses wireless sensor networks instead of infrastructure has been proposed. Since the sensor node used in the wireless sensor network is placed outside and communicates wirelessly, it is easily compromised from an attacker. Attackers can use a compromised node to attempt various attacks that affect the system, such as replay attacks. These attacks can also have a fatal effect on autonomous vehicles that use information from sensor nodes. The attacker constantly transmits false information to autonomous vehicles, causing a disruption in the driver's schedule. In addition, autonomous vehicles may cause traffic accidents due to path planning using incorrect information. The proposed scheme in this paper uses an autonomous vehicle to defend against replay attacks and detects compromised nodes. The sensor node sends a message to the base station and the autonomous vehicle to notify them when an event occurs. Thereafter, the message is transmitted to the traffic management center and the base station to be mutually verified. This paper shows that by modeling and simulating EF-ITS, it is possible to defend against replay attacks with a probability of 90% and detect compromised nodes.
Highlights
As the Internet of Things (IoT) technology and the Information and Communication Technology (ICT) technology have been developed, many devices with the latest technologies are being developed [1]
Among the services that make up a smart city, autonomous vehicles are a key element that reduce the burden on citizens to drive [7]
The restricted speed area is set to 1500m to 2000m and 4000m to 4500m, and the speed limit is set to 60kph according to the Road Traffic Act in Korea
Summary
As the Internet of Things (IoT) technology and the Information and Communication Technology (ICT) technology have been developed, many devices with the latest technologies are being developed [1]. All actions that occur in the city such as energy, traffic, and weather should be processed as data Various technologies such as artificial intelligence, blockchain, and next-generation security are required to collect information [6]. Possible to defend against replay attacks from the WSN and Recently, autonomous vehicle research has been conducted so detect compromised nodes. If a reuse attack occurs on the sensor node used for ITS, the autonomous vehicle will only receive the previous data. Since the sensor node is low in memory and processing power, and operates on a battery, energy is limited Since it is located outside and transmits and receives data wirelessly, it can be compromised by an attacker. Most security techniques have the disadvantage of consuming a lot of energy from the sensor node
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