Information Dissemination in
Vehicular Networks
MIT Collaborators:
Calvin Newport, Subha Gollakota and Hari Balakrishnan
Ford Collaborators:
Jayanthi Rao and T. J. Giuli
What Can We Do With
Talking Cars?
What Can We Do With
Talking Cars?
Mobility
Connectivity
Protocol Evaluations
Mobility
The Cabspotting Project
http://cabspotting.org
Connectivity
Qi Chen, Felix Schmidt-Eisenlohr, Daniel Jiang, Marc Torrent-Moreno,
Luca Delgrossi, and Hannes Hartenstein.
Overhaul of IEEE 802.11 Modeling and Simulation in ns-2.
MSWiM 2007
Protocol Evaluations
...
...
Question #1:
How Well Can We
Aggregate?
Question #1:
How Well Can We
Aggregate?*
* Using round-based protocols with small messages.
V1
V2
V3
V5
V4
V4
V1
V2
V3
V5
Question #2:
How Well Can We Route to
Gateways?
V1
V2
V3
V5
V4
V1
V2
V3
V4
V5
One Hop Routing
Our Best Protocol
Our Best Protocol
Our Best Protocol
Question #3:
How Well Can We Gossip
Among Cars?
V1
V2
V3
V3
V2
V1
V1
V2
V2
V1
V3
Initial Conclusions:
Initial Conclusions:
1. Round-based background protocols
can achieve useful communication.
Initial Conclusions:
1. Round-based background protocols
can achieve useful communication.
2. These protocols can potentially
generate significant infrastructure
savings.