Vehicular Ad-Hoc Networks
overview
Motivation
Ongoing research on VANETs
INTRODUCTION
VANET
OBJECTIVES
Smart vehicle
Dedicated Short Range Communications (DSRC)
DSRC – Operating Characteristics
How does DSRC work?
Differences from manet
VANET applications
Application-1 : Congestion Detection
Application-2 : Deceleration Warning
ADVERSARIES
Attackers
attacks
Bogus information attack
Hidden vehicle attack
Tunnel attack
conclusion

How does DSRC work?
Road-Side Unit (RSU)
Announces to OBUs 10 times per second applications it supports on which channel
On-Board Unit (OBU)
Listens on Channel 172
Executes safety applications first
Then switches channels
Executes non-safety applications
Returns to Channel 172 and listens