VANET and its Routing

1. VANET

4. TECHNOLOGIES USED
• Sensor technologies(Infra-red sensing/Video
and Camera Image Perception/RADAR/gyro
sensor/inertial sensor) come up with a virtual
understanding of the vehicle environment
• Technologies(GPS/WiFi/WiMax) as sensing
systems to accurately identify the vehicle
position and interpret the environment

5. VANET

6. VANET DEFINITION
Vehicular Adhoc Network (VANET) is a special
type of MANET in which automobiles form the
nodes of the network.
Participating cars become a wireless connection
or router through VANET and it allow the cars
almost to connect 100 to 300 meters to each
other and in order to create a wide range
network.

7. VANET
VANET can help drivers to get warnings and
information from a nearby environment via
messages.
The drivers can also get road condition
information, notification of nearby food malls,
petrol refilling stations etc.

8. VANET
As vehicles fall out of the signal range and drop
out of the network, other vehicles can join in,
connecting vehicles to one another so that a
mobile Internet is created.

9. ABOUT VANET
The primary goal of VANET is to provide road
safety measures where information about
vehicle’s current speed, location coordinates are
passed with or without the deployment of
Infrastructure.

10. INTER VEHICLE COMMUNICATION
NETWORKS

11. DEFINITION
Vehicle to Vehicle communication approach is
most suited for short range vehicular networks.
It is Fast and Reliable and provides real time
safety
It does not need any roadside Infrastructure.

12. INTER VEHICLE COMMUNICATION
NETWORKS
If the message comes from a vehicle in front, the
receiving vehicle sends its own broadcast
message to vehicles behind it.
This ensures that all enabled vehicles moving in
the forward direction get all broadcast messages

13. ROUTING IN VANET

14. INTER VEHICLE COMMUNICATION
NETWORKS
1) Base station
It needs base station. Each vehicle
transmits its information and receives another
vehicle’s information.

15. INTER VEHICLE COMMUNICATION
NETWORKS
2) Communication among unknown and
unspecified vehicles
Each vehicle communicates with unknown and
unspecified vehicles accidentally neighboring on
the road.

16. INTER VEHICLE COMMUNICATION
NETWORKS
3) Importance of the distance between vehicles
The importance for a vehicle of another
vehicle’s information grows with decreasing the
distance between the vehicle and another
vehicle.

17. APPLICATIONS OF VANET
Electronic brake lights
It allows a driver to react to vehicles braking
even though they might be obscured by other
vehicles.
Traffic information systems
It uses VANET communication to provide up-to-
the minute obstacle reports to a vehicle's
satellite navigation system

18. APPLICATIONS OF VANET
Platooning
It allows vehicles to closely follow a leading
vehicle by wirelessly receiving acceleration and
steering information