Download - V2 V Communication and ITS Implications
Control and Intelligent Transportation Research Lab
V2V Communication and ITS Implications
Prof. Umit Ozguner TRC Inc. Chair on ITS
The Ohio State University
July 31, 2007
Control and Intelligent Transportation Research Lab
Overview
• Applications– V2V– VI– .
• Testbeds– V2V– V2V & VI– Simulator
• Research issues– .– .
Control and Intelligent Transportation Research Lab
V2V & V2I Testbed at The Ohio State University
Center for Automotive Research and Intelligent Transportation
The V2V & V2I Testbed presently has 3 outfitted vehicles and 2 base stations.
Control and Intelligent Transportation Research Lab
OSU Testbed: Field Tests in an Open Area
• Receiver moved at x km/hr towards the stationary transmitter• Measured using DSRC radios:
Received Power Bit Error Rate
Control and Intelligent Transportation Research Lab
OSU Testbed: Curve Hopping
Hop
ping
Com
mun
icat
ion
Are
aSD
C C
omm
unic
atio
n A
rea
Vehicle 2(Stop)
Vehicle 1(Stop, Hazard on)
Vehicle 3
SDC Communica
tion A
rea
Vehicle 2 (Guest’s vehicle)(With LDC and SDC systems)
Vehicle 3 (Hopping vehicle)(With only SDC system)
● Hopping measurement at curvePlace : SDC Received Power LDC Received Power≧
Vehicle 1(accident vehicle)(With LDC and SDC systems)LDC
LDC SDC
SDC
SDC at 5.9 GHz
LDC at 220 MHz
Control and Intelligent Transportation Research Lab
OSU Testbed: Blind Intersection
Building
Vehicle 1 (Accident vehicle)(It has LDC and SDC systems.)
Vehicle 2 (Guest’s vehicle)(It has LDC and SDC systems.)
● Head-to-head encounter accident prevention at blind intersection
Building Building
Building
1. Vehicle 1 and vehicle 2 run into each other.2. Vehicles can’t observe each other, because of building. Vehicles transmits vehicle location each other.3. Vehicle receives packet and tells driver warning.
LDC
LDC
Control and Intelligent Transportation Research Lab
OSU Testbed: Long Distance Communication
Warning information about vehicle 1 1) Distance between vehicles: 7 km “Accident 7 km Ahead!”
2) Distance between vehicles: 3 km “Accident 3 km Ahead!”
3) Distance between vehicles: 1 km “Accident 1 km Ahead!”
4) Distance between vehicles: 700 m“Car Stopping 700 m Ahead!”
5) Distance between vehicles: 300 m“Car Stopping 300 m Ahead!”
6) Distance between vehicles: 100 m“Car Stopping 100 m Ahead!”
x k
m
Vehicle 1 (Accident vehicle)(It has LDC and SDC systems.)
Vehicle 2 (Guest’s vehicle)(It has LDC and SDC systems.)
● Transmit incident warning occurred at long distance, and tell driver incident warning
Control and Intelligent Transportation Research Lab
OSU Testbed: Picture Transmission:V2V or VI
Control and Intelligent Transportation Research Lab
Safety Needs Investigation by a complex simulation environment
Control and Intelligent Transportation Research Lab
Research Directions: Urban Multi-hop Broadcast (UMB)
Intersection Broadcast Start new directional broadcasts
along other road segments
Directional Broadcast Packet dissemination along the
road
Source Vehicle
The furthest vehicle in the transmission range of the source
vehicle
GOALS
1. High reliability by acknowledged message delivery
2. Low induced traffic in single and multi-hop scenarios
Control and Intelligent Transportation Research Lab
Possible Additional Directions
Source
Destination Position (x, y)
Source
Destination Area:
An exit of a highway
Design Goal: Send packets to a group of nodes in a geographic region.
Possible Destination: Nodes around a highway exit
Design Goal: Send packets to a single node whose position is known.
Possible Destinations: Other vehicles, gas stations, restaurants
GeocastUnicast
Control and Intelligent Transportation Research Lab
Other research direction:Internet Access in Vehicular Networks
• Goal: Internet access in vehicles
• Objectives:
– Providing high end-to-end throughput
– Preventing starvation of vehicles far away from the gateways
INTERNET
Gateway BGateway A
Service Area of Gateway A
Service Area of Gateway B
: Physical transmission range
• Internet access is accomplished through fixed internet gateways along the road.
• Vehicles communicate with distant gateways via multi-hopping.
Control and Intelligent Transportation Research Lab
Other Infrastructure at Ohio State: Kansei: A hybrid testbed
Generic Platform Array
Acoustic & Seismic
MobileMultimodal
Environmental
Testing by coupling a generic platform array (located in warehouse) with multiple domain sensing/comm arrays (ported to fields)
Control and Intelligent Transportation Research Lab
• End-to-end experimentation enabled via service components, exposed via web interface (and soon as web services)
• Code Deployment
• Scheduling
• Job Control (Stop, Suspend, Resume, Move)
• Orchestration (Multi-phase jobs)
• Testbed Health State
• Injection
• Data and Experiment Status
• Frequency and Key Management
Contact Prof. A. Aurora: Anish Arora <[email protected]>
•Possibility of linkage and interaction being considered. The OSU-V2V testbed can provide realistic data to be then emulated on KANSEI. KANSEI can provide (in real time) an aggregated model of “the rest of the city”.
Control and Intelligent Transportation Research Lab
Some Selected References:“Ohio State University Bus Location Information System", Proceedings of the Intelligent Transportation
Society of America 8th Annual Meeting and Exposition, pp. 1-9, Detroit, May 1998. (Keith A. Redmill, John I. Martin, and U. Ozguner)
"Wireless Issues in ITS," Proc. Int. Symp. on Antennas and Propogation, Fukuoka, Japan, June 2000. (Plenary Talk). (Ümit Özgüner, Brian Baertlein and Mike Fitz)
“Inter-vehicle Communication Recent Developments at Ohio State University”, Proceedings of IEEE Intelligent Vehicle Symposium, France, June 2002. (Ü. Özgüner, F. Özgüner, M. Fitz, O. Takeshita, K. Redmill, W. Zhu, and A. Dogan)
“A MAC Layer Protocol for Real-time Inter-vehicle Communication”, Proceedings of IEEE 5th International Conference on Intelligent Transportation Systems, Singapore, September 2002, pp. 353-358. (Abhishek Pal, Atakan Dogan, Füsun Özgüner, and Ümit Özgüner)
"Evaluation on Intersection Collision Warning System Using Inter-vehicle Communication Simulator", Atakan Dogan, Gokhan Korkmaz, Yiting Liu, Fusun Ozguner, Umit Ozguner, Keith Redmill, Oscar Takeshita, Intelligent Transportation Systems, 2004. Proceedings. 2004 IEEE, Oct. 2004, Washington, D.C., USA, Pages: 1103-1108
“Urban Multi-Hop Broadcast Protocol for Inter-Vehicle Communication Systems,” VANET 2004, Boston, ( G. Korkmaz, E. Ekici, F. Ozguner, U. Ozguner)
"A complete simulator architecture for inter-vehicle Communication Based Intersection Warning Systems,"in Proceedings of IEEE Conference on Intelligent Transportation Systems, Vienna, Austria, 2005, pp. 461-466, ( Avila, G. Korkmaz, Y. Liu, H. Teh, E. Ekici, F. Ozguner, U. Ozguner, K. Redmill, O. Takeshita, K. Tokuda, M. Hamaguchi, S. Nakabayashi, and H. Tsutsui)
The slides represent the work of the OSU V2V Team. Prof. M. Fitz, Dr. A. Dogan, Prof. E. Ekici, Prof. F. Ozguner, Prof. U. Ozguner, Dr. K. Redmill and Prof. O. Takeshita have participated. The publications listed above are from Prof. U. Ozguner. Those interested can contact other OSU V2V Team members.