scholarly journals Overview of Security Issues in Vehicular Ad-hoc Networks

2011 ◽  
pp. 894-911 ◽  
Author(s):  
José María De Fuentes ◽  
Ana Isabel González-Tablas ◽  
Arturo Ribagorda
Keyword(s):  
Ad Hoc Networks ◽  
Traffic Safety ◽  
Traffic Management ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Road Traffic ◽  
High Mobility ◽  
Security Issues ◽  
Vanet Security ◽  
Hoc Networks

Vehicular ad-hoc networks (VANETs) are a promising communication scenario. Several new applications are envisioned, which will improve traffic management and safety. Nevertheless, those applications have stringent security requirements, as they affect road traffic safety. Moreover, VANETs face several security threats. As VANETs present some unique features (e.g. high mobility of nodes, geographic extension, etc.) traditional security mechanisms are not always suitable. Because of that, a plethora of research contributions have been presented so far. This chapter aims to describe and analyze the most representative VANET security developments.

A Geocast Protocol with Information-Centric Perspective in Vehicular Ad-Hoc Networks (VANETs)

2018 ◽  
Vol 7 (2) ◽  
pp. 1-18
Author(s):  
Houacine Abdelkrim ◽  
Guezouri Mustapha
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocol ◽  
Traffic Safety ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Road Traffic ◽  
High Mobility ◽  
Road Traffic Safety ◽  
Hoc Networks

Vehicular ad-hoc networks (VANETs) is subclass of network of mobile ad-hoc network (MANET) type, it has emerged as a platform that supports inter-vehicles communication to improve road traffic safety. A conventional packet-based routing protocol where a packet moves from a source to a destination untouched throughout the entire process no longer satisfies the requirements in VANETs because of the high mobility of vehicles. This article proposes a routing protocol with an information-centric perspective for the VANETs, the techniques invoked are: Geocast instead of the classical multicast and the aggregation location-based. The simulation results under NS-3 and SUMO show that this protocol can help to limit the redundancy of the messages exchanged by their aggregation without maintaining a hierarchical structure; which minimizes transmission costs and ensures reliability and performance.

Data Science in Vehicular Ad-Hoc Networks

2020 ◽  
pp. 191-202
Author(s):  
Ananthi Govindasamy ◽  
S. J. Thiruvengadam
Keyword(s):  
Ad Hoc Networks ◽  
Data Science ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Road Traffic ◽  
High Mobility ◽  
The Road ◽  
Wireless Network Design ◽  
Hoc Networks

Vehicular Ad-hoc Networks (VANET) is a mobile ad-hoc network in which vehicles move rapidly through the road and topology changes very frequently. VANET helps to provide safe, secure, and more comfort travel to travelers. Vehicles intelligence is an important component in high mobility networks, equipped with multiple advanced onboard sensors and contain large volumes of data. Datascience is an effective approach to artificial intelligence and provides a rich set of tools to exploit such data for the benefit of the networks. In this chapter, the distinctive characteristics of high mobility vehicular ad-hoc networks are identified and the use of datascience is addressing the resulting challenges. High mobility vehicular ad-hoc networks exhibit distinctive characteristics, which have posed significant challenges to wireless network design. Vehicle traffic data, and road traffic future condition data are analyzed and incorporated to enhance the VANET performance. VANETs technologies are useful to efficiently model and reliably transmit big data.

scholarly journals Vehicular Traffic Management Based on Traffic Engineering for Vehicular Ad Hoc Networks

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 45167-45183 ◽  
Author(s):  
Daniel L. Guidoni ◽  
Guilherme Maia ◽  
Fernanda S. H. Souza ◽  
Leandro A. Villas ◽  
Antonio A. F. Loureiro
Keyword(s):  
Ad Hoc Networks ◽  
Traffic Engineering ◽  
Traffic Management ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Vehicular Traffic ◽  
Hoc Networks

scholarly journals Cooperation as a Service in VANET: Implementation and Simulation Results

2012 ◽  
Vol 8 (2) ◽  
pp. 153-172 ◽  
Author(s):  
Hajar Mousannif ◽  
Ismail Khalil ◽  
Stephan Olariu
Keyword(s):  
Ad Hoc Networks ◽  
Traffic Safety ◽  
Vehicular Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Network Routing ◽  
The Road ◽  
Vehicle To Vehicle ◽  
Simulation Results ◽  
Hoc Networks

The past decade has witnessed the emergence of Vehicular Ad-hoc Networks (VANET), specializing from the well-known Mobile Ad Hoc Networks (MANET) to Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) wireless communications. While the original motivation for Vehicular Networks was to promote traffic safety, recently it has become increasingly obvious that Vehicular Networks open new vistas for Internet access, providing weather or road condition, parking availability, distributed gaming, and advertisement. In previous papers [27,28], we introduced Cooperation as a Service (CaaS); a new service-oriented solution which enables improved and new services for the road users and an optimized use of the road network through vehicle's cooperation and vehicle-to-vehicle communications. The current paper is an extension of the first ones; it describes an improved version of CaaS and provides its full implementation details and simulation results. CaaS structures the network into clusters, and uses Content Based Routing (CBR) for intra-cluster communications and DTN (Delay–and disruption-Tolerant Network) routing for inter-cluster communications. To show the feasibility of our approach, we implemented and tested CaaS using Opnet modeler software package. Simulation results prove the correctness of our protocol and indicate that CaaS achieves higher performance as compared to an Epidemic approach.

scholarly journals Efficient RSU Selection Approaches for Load Balancing in Vehicular Ad Hoc Networks

2020 ◽  
Vol 5 (1) ◽  
pp. 56-63
Author(s):  
Chi-Fu Huang ◽  
Jyun-Hao Jhang
Keyword(s):  
Wireless Communication ◽  
Load Balancing ◽  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
High Mobility ◽  
Communication Technologies ◽  
Delivery Ratio ◽  
Entry Points ◽  
Hoc Networks

Due to advances in wireless communication technologies, wireless transmissions gradually replace traditional wired data transmissions. In recent years, vehicles on the move can also enjoy the convenience of wireless communication technologies by assisting each other in message exchange and form an interconnecting network, namely Vehicular Ad Hoc Networks (VANETs). In a VANET, each vehicle is capable of communicating with nearby vehicles and accessing information provided by the network. There are two basic communication models in VANETs, V2V and V2I. Vehicles equipped with wireless transceiver can communicate with other vehicles (V2V) or roadside units (RSUs) (V2I). RSUs acting as gateways are entry points to the Internet for vehicles. Naturally, vehicles tend to choose nearby RSUs as serving gateways. However, due to uneven density distribution and high mobility nature of vehicles, load imbalance of RSUs can happen. In this paper, we study the RSU load-balancing problem and propose two solutions. In the first solution, the whole network is divided into sub-regions based on RSUs’ locations. A RSU provides Internet access for vehicles in its sub-region and the boundaries between sub-regions change dynamically to adopt to load migration. In the second solution, vehicles choose their serving RSUs distributedly by taking their future trajectories and RSUs’ loading information into considerations. From simulation results, the proposed methods can improve packet delivery ratio, packet delay, and load balance among RSUs.

scholarly journals Evaluation of Selective Broadcast Algorithms for Safety Applications in Vehicular Ad Hoc Networks

2011 ◽  
Vol 2011 ◽  
pp. 1-13 ◽  
Author(s):  
Kaan Bür ◽  
Maria Kihl
Keyword(s):  
Ad Hoc Networks ◽  
Traffic Safety ◽  
High Performance ◽  
Information Dissemination ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Emergency Situation ◽  
Performance Criteria ◽  
Safety Warning ◽  
Hoc Networks

Just as wireless communications develop further to achieve higher performance, new application areas emerge to challenge the limits. Vehicular ad hoc networks are one of these areas, and emergency situation warning is one of their most popular applications since traffic safety is a concern for everyone. Due to the life-critical nature of emergency applications, however, it is extremely important to ensure the solutions proposed meet the standards required, such as reliable and timely delivery of the safety warning in a situation like car collision avoidance. In order to put the candidate solutions to the test and evaluate their feasibility, we adopt the approach of computer simulation. We implement four different selective broadcast algorithms used for information dissemination in vehicular ad hoc networks, and compare their performance under identical realistic simulation conditions. Our goal is to provide an evaluation focussing on the performance with respect to safety, rather than to network aspects like throughput, loss, and delay. We define four new performance criteria to address the effectiveness, efficiency, timeliness, and overhead of the broadcast algorithms in safety warning delivery. The results we obtain using these criteria help us to understand better the design requirements of a high-performance selective broadcast algorithm.

An Efficient Routing Protocol for Vehicular Ad-Hoc Networks

2020 ◽  
Vol 10 ◽  
Author(s):  
Anant Ram
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocol ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
High Mobility ◽  
Greedy Forwarding ◽  
Routing Strategy ◽  
Moving Vehicles ◽  
Hoc Networks ◽  
Selection Of

Background: VANETs (Vehicular Ad-Hoc Networks) are the subclass of MANETs, which has recently emerged. Due to its swift changing topology and high mobility nature, it is challenging to design an efficient routing protocol for routing data amongst both moving vehicles and stationary units in VANETs. In addition, the performance of existing routing protocols is not effective due to high mobility characteristics of VANETs. Methods: In this paper, we proposed link reliable routing strategy that makes use of restricted greedy forwarding by considering neighborhood vehicles density and the least, average velocity with its own neighboring vehicles for the selection of next forwarder. Result: The proposed approach take the assumption that at every junction the police patrolling car (i.e. PCR junction node), which forwards the packet to vehicle onto correct road segment only. The link reliability is ensured by the mechanism for the selection of the next forwarder. Conclusion: The objective of this paper is to increase route reliability to provide increase throughput without greatly affecting end-to-end delay. The simulation results reveal that the proposed approach Reliable GPSR(R-GPSR) outperforms existing GPSR and E-GyTAR approach.

Computing Traffic Information in the Cloud

2015 ◽  
pp. 1062-1079
Author(s):  
Po-Ting Wei ◽  
Tai-Chi Wang ◽  
Shih-Yu Chang ◽  
Yeh-Ching Chung
Keyword(s):  
Ad Hoc Networks ◽  
Real Time ◽  
Traffic Safety ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Traffic Information ◽  
Traffic Light ◽  
Real Time Traffic ◽  
Hoc Networks ◽  
Commercial Applications

Vehicular ad hoc networks have been envisioned to be useful in road safety and commercial applications. In addition, in-vehicle capabilities could be used as a service to provide a variety of applications, for example, to provide real-time junction view of road intersections or to address traffic status for advanced traffic light control. In this work, the authors construct a cloud service over vehicular ad hoc networks to provide event data including capturing videos or Global Positioning System (GPS) data. Moreover, the authors integrate the GPS receiver and the navigation software equipped over On Board Unit to create a Geographic Information System digital map and to offer a traffic safety application. The hardware is implemented by Eeepad for integrating camera and GPS. Furthermore, the cyclic recording scheme has been addressed for data transmission and query. With the design, people can get real-time traffic information including traffic videos or geographical data in the cloud.

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