Wireless systems and technologies I
Current approaches to wireless vehicle communications
Jack Pokrzywa
Director Ground Vehicle Standards, SAE International
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Highlights from Presentation
"A Vehicle Communication Scheme to
Achieve Optimal Cooperative Positioning"
DSRC
How does GNSS work?
Why is GNSS not enough?
What is cooperative positioning?
How does DSRC help?
Effect of network parameters on positioning
performance
Precise position and reliable communication
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Conclusions / Recommendations
Cooperative Positioning is needed to
improve the positioning accuracy in the
vehicular environment
Communication constraints affect the level
of accuracy that we can get from
cooperative positioning
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Highlights from Presentation "Efficient
Broadcasting, through Irresponsible Forwarding, in
Intelligent Transport Systems"
Broadcast Protocols in VANETs
Efficient Broadcasting through
Irresponsible Forwarding (IF)
Numerical Results
Improvements
Conclusions
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Conclusions / Recommendations
Efficient broadcast transmissions are a
key factor in VANETs
Tradeoff between reliability, latency and
efficiency
In safety related applications, latency is a
critical issue
A correct but too delayed information has
no utility
IF, with few adjustments, could be a
solution
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Highlights from Presentation "Security Risk
Analysis Approach for on-board Vehicle Networks"
Future vehicles will become mobile nodes
in a dynamic transport network
vehicle systems will be under threat from
malicious individuals and groups seeking to
gain personal or organizational advantage
ensuring security will be critical for the
successful deployment of V2X technology
EU project EVITA aims to prototype a
toolkit of techniques and components to
ensure the security of in-vehicle systems
hardware, software, analysis methods
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Conclusions / Recommendations
A security risk analysis approach has been
developed from automotive safety and IT
security practices
attack trees to identify asset attacks from use cases,
attacker type and motivations
4-component security risk vector, potentially
including security-related safety issues
attack potential and controllability to assess
probability of successful attack
Level and frequency of risks associated
with asset attacks indicate priorities for
counter-measures
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Highlights from Presentation "The Benefits of
Enabling a Fully Autonomous Vehicle with Wireless
Communications"
Automated, Autonomous,CommunicationEnabled, and Cooperative – what do they
mean
Case study presented:
Cooperative Sensor Sharing
Cooperative Cruise Control
Cooperative Convoy System
Mobility, Safety, Environmental impacts
are reviewed
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union
Conclusions / Recommendations
The convergence of more aggressive
active safety systems with more robust
communication strategies will ENABLE the
emergence of truly cooperative systems.
The more “autonomous” vehicles become,
the more they will need to interact
cooperatively with their surroundings (V2I
and V2V).
The Fully Networked Car
Geneva, 3-4 March 2010
International
Telecommunication
Union