China
Africa
Explore chapters and articles related to this topic
Secured Trusted Authentication with Trust-Based Congestion Scheme for V2V Communication
Published in Pankaj Bhambri, Sita Rani, Gaurav Gupta, Alex Khang, Cloud and Fog Computing Platforms for Internet of Things, 2022
Vehicular Ad-hoc Network (VANET) is widely used to provide on-demand wireless communication infrastructure between the vehicles by using the wireless communication links (Bali et al., 2017). The vehicles of the VANET are behaved as router and transmit the data packets by using the wireless communication devices namely On-Board Units (OBU) as well as each vehicle switches the data packets between other vehicles. The OBU transmits a different kind of data such as traffic volume remarks, vehicle location, current time, speed, direction, acceleration and deceleration. The messages from the OBU are transmitted to other vehicles or roadside units for accomplishing the Vehicle-to-Vehicular (V2V) or Vehicular-to-Infrastructure (V2I) communication respectively (Sugumar, Rengarajan & Jayakumar, 2018). VANET is considered as an intelligent transportation system due to its movement predictability, strong computing, adequate node energy, and storage capability. VANET provides real-time traffic information to the traffic participants by collecting, analyzing, processing, and disseminating traffic information obtained from the vehicles. This data traffic transmission is used for improving the road safety and driving conditions.
Reliability Evaluation of a MANET Incorporating Copula
Published in Mangey Ram, S. B. Singh, Mathematics Applied to Engineering and Management, 2020
The rapid enhancement of wireless devices like laptops and mobile phones has given rise to portable computing. Mobile ad-hoc network (MANET) has become one of the most important topic of recent research because of the increasing demand of mobile devices. It is a kind of ad-hoc network that can change its locations and be organized by itself anytime. There are different types of MANETs; some are constrained to a local area of wireless devices like cluster of laptops, whereas others may be linked to the Internet. A vehicular ad hoc network (VANET) is a kind of MANET that allows automobiles to be in touch with roadside tools. Automobiles may not have direct Internet connections, but wireless roadside tools allow data from automobiles to be sent over the Internet. The data from the automobile can be used to compute traffic situations and to keep track of them. MANETs are generally not as secure as other networks because of its vibrant nature, so it is essential to be cautious what type of information should be sent over a MANET.
Survey of Sybil Attacks in Networks
Published in Mohammad Ilyas, Sami S. Alwakeel, Mohammed M. Alwakeel, el-Hadi M. Aggoune, Sensor Networks for Sustainable Development, 2017
A vehicular ad hoc network (VANET) is a technology that uses moving cars as nodes to create a special mobile network, which takes safety as its main purpose. In VANETs, each participating car can communicate with roadside base stations or other cars. However, this type of network is vulnerable to Sybil attack. For example, a selfish driver may launch a Sybil attack by claiming that many vehicles are traveling nearby. If this is the case, other cars may falsely believe that there is a traffic jam on the corresponding road and therefore pick up an alternative road. The selfish driver will enjoy better traffic, with others paying the cost. Moreover, the Sybil attacks can also cause serious safety threats: a malicious driver may drop the warning messages. In VANETs, when a crash happens or speed significantly reduces, a warning message for slowing speed will be generated and is further forwarded to the following vehicles, one by one. By claiming many fake identities, the warning messages may all be transmitted to the malicious driver’s car. If she drops these messages, other following cars will be in danger.
A hybrid-spatially distributed multichannel MAC protocol for vehicular ad-hoc networks
Published in International Journal of Electronics, 2023
Jahnvi Tiwari, Madhuri Purna, Arun Prakash, Rajeev Tripathi
The vehicular ad hoc network (VANET) is gaining traction as an intelligent transportation system (ITS) that can improve safety worldwide. The device unit (DU) and the roadside unit (RSU) are used to communicate between nodes in node-to-node/infrastructure communication (Lin & Tang, 2019). With the aid of DU, each node sends safety messages (sm), including collision warnings (Lin & Tang, 2019). Federal communications commissions have allotted 75-MHz bandwidth resources in the 5.9 GHz spectrum for vehicle communication (Javed et al., 2015). The VANET has considerable hurdles in spectrum scarcity for channel allocation, throughput maximisation and packet transmission delay optimisation (Lin & Tang, 2019). In order to address the transmission needs of sm, multiple multichannel MAC protocols have evolved in VANET. The mobility of nodes in a VANET attracted adaptive MAC methods for communication.
Impact of Factors Influencing Cyber Threats on Autonomous Vehicles
Published in Applied Artificial Intelligence, 2021
A. Seetharaman, Nitin Patwa, Veena Jadhav, A. S. Saravanan, Dhivya Sangeeth
Vehicular Ad-Hoc Network (VANET) – VANETs are ad hoc networks used for communication among and between vehicles and roadside units which has the potential to reduce congestion and traffic safety & management. Security Challenges in VANETs are the lack of central points, mobility, wireless links, cooperativeness, and lack of a clear line of defense. Due to these characteristics, conventional security approaches cannot be directly applied to VANETs (Sakiz and Sen 2017). Researchers have demonstrated how Denial of Service can be performed against VANETs to disrupt the infrastructure. VANET’s safety and security aspects are an overlooked area in AVs and it is important to explore them because compromising these control protocols could lead to incorrect decisions that threaten AVs‘ stability and safety (Amoozadeh, 2015) (Parkinson et al. 2017).
Multiclass multilane model for freeway traffic mixed with connected automated vehicles and regular human-piloted vehicles
Published in Transportmetrica A: Transport Science, 2021
Tianlu Pan, William H. K. Lam, Agachai Sumalee, Renxin Zhong
The advancement of cyber-physical systems enables vehicles to form a mobile wireless network on the road called vehicular ad hoc network (VANET), which links vehicles with roadway infrastructures via wireless communication. As a promising technology, VANET offers the following two types of communications: vehicle-to-vehicle (V2 V) and vehicle-to-infrastructure (V2I). In view of the promising market prospect, enormous efforts have been exerted by the automobile industry and numerous institutions toward the development, testing, and deployment of Vehicle Automation and Communication Systems (VACS) in recent years because they are believed to bring benefits to traffic safety and efficiency (Diakaki et al. 2015). For example, through the aid of VACS, an effective approach is to change the driving behavior from individual car following (CF) to a platoon-based driving, that is, a cooperative driving pattern for a group of vehicles wherein a vehicle follows the preceding vehicle with a small and nearly constant safety space/time headway to form platoons (Ngoduy and Jia 2017). The literature has validated that the platoon-based driving pattern with fully automated vehicles can significantly improve roadway capacity and introduce numerous benefits (Hall and Chin 2005; van Arem, van Driel, and Visser 2006). A recent experiment at the California Partners for Advanced Transit and Highways (PATH) showed that connected automated vehicles (CAVs) in platoons could maintain a time gap as small as 0.6 s compared with 1.5 s for regular human-piloted vehicles, thereby possibly nearly doubling the roadway capacity (Chen et al. 2017).