This document discusses Vehicular Ad-hoc Networks (VANETs). It describes VANETs as wireless networks that allow communication between vehicles and nearby roadside units to provide connectivity and support intelligent transportation systems. The architecture includes in-vehicle, vehicle-to-vehicle, vehicle-to-infrastructure, and vehicle-to-cloud communication. Applications include safety features like collision alerts, entertainment like internet access, and services like GPS. Security is a major challenge due to the open network architecture and ensuring authentication, availability, non-repudiation, privacy, and data verification is difficult. Future work is needed to address security and refine VANET technologies.

1. BIRLA INSTITUTE OF TECHNOLOGY
MESRA, JAIPUR CAMPUS
Topic: - Architecture and Security In VANET
Presented By:
SOUMYA MUKHERJEE (MCA/25012/21)

2. Vehicular
Ad hoc
Network
WHAT ARE VANET ?
• A wireless ad hoc network that provides communication
among vehicles with OBUs (On Board Units) and nearby RSUs
(Road side Units)
• The purpose is to provide:
o Ubiquitous connectivity while on the road to mobile
user.
o Effective V2V (Vehicle-to-Vehicle) communication that
enable the ITS (Intelligent Transportation System)

4. VANET
ARCHITECTURE
THERE ARE FOUR TYPES
OF ARCHITECTUTE
 In-Vehicle
Communication
 Vehicle-to-Vehicle
(V2V)
 Vehicle-to-Road
Infrastructure (V2I)
 Vehicle-to-Broadband
Cloud (V2B)

5. CHARACTERIST
IC OF
VANET
THERE ARE FOUR CHARACTERISTICS?
 Mobility
 Movement Pattern
 Traffic Density
 Heterogeneity

6. SECURITY
REQUIRMENT
IN
VANET
• Authentication
• Availability
• Non - Repudiation
• Privacy
• Data Verification

7. CHALLENGES AND REQUIRMENT IN
VANET
• Signal Lost
• Bandwidth Confines
• Connectivity
• Security and Privacy

8. POTENTIAL
APPLICATION
Safety
• Collision Alert
• Road Condition
Warning
• Merge Assistance
• Deceleration
Warning
Entertainment
• Internet
Connectivity
Others Benefits
• GPS
• Toll Road
• Cruise Control

9. Conclusio
n
As I survey several research papers on VANET architecture, characteristics, applications,
security, and security challenges are presented in this ppt. Security is a problem with
VANET. The VANET security has become the main requirement of users and so there is
a need to do more work relating to it. In vehicular communication, a number of important
topics are currently being researched and discussed intensively. Modifications,
refinements, safety communication, data security, and V2V communications are among
the topics discussed. Mobile ad hoc networks have the potential to evolve into VANETs.
V2V and V2I communications will be implemented in future to predict the level of
performance of communication established.