Vehicular UCLA

2G. Pau NSF Mobility Rutgers, `07 The Standard: DSRC / IEEE p Car-Car communications at 5.9Ghz Derived from a three types of channels: Vehicle-Vehicle service, a Vehicle-Gateway service and a control broadcast channel. Ad hoc mode; and infrastructure mode p: IEEE Task Group for Car- Car communications

3G. Pau NSF Mobility Rutgers, `07 Trace Driven Mobility Synthetic: Fine grain vehicular traces are generated by using a microscopic traffic simulator (i.e. CORSIM, TRANSIMS, etc) Issues: Map details (Tiger Database, signals, buildings, etc) Activities (why cars move?) Amount of data (15 minutes = about 4GB) Actual: Traces are collected from actual vehicle, and a model is inferred. Issues: Type of mobility Generalization of the model

4G. Pau NSF Mobility Rutgers, `07 What is next? A Synthetic Mobility Model that is REALISTIC! A density based Mobility model Integrated with TIGER/Naviteq: validated through Transims Real measurements in several Italian Cities (Torino, Monza, etc) Made available from September 1st at

C - V e T Campus - Vehicular Testbed

6G. Pau NSF Mobility Rutgers, `07 Project Goals Provide: A platform to support car-to-car experiments in various traffic conditions and mobility patterns A shared virtualized environment to test new protocols and applications Remote access to C-VeT through web interface Allow: Collection of mobility traces and network statistics Experiments on a real vehicular network Full experimental Flexibility but no control on Mobility, That is given.

7G. Pau NSF Mobility Rutgers, `07 Hardware Cappucino PC GPS and other hardware similar to current Few High precision GPS installed in the Testbed.

8G. Pau NSF Mobility Rutgers, `07 GPS HWRADIO MODEM ADAPTER API GPS DRV Services AUTHORIZATION LAYER LOCAL DB VM 2 RM COMMUNICATION LAYER App. Logic VM 2 RM APIVIRTUAL NETWORK ADAPTER Virtual LAN USER SPACE Real Machine Virtual Machine MODEM DRV AdHoc IFManaged IF Transparent Access

9G. Pau NSF Mobility Rutgers, `07 Contributions: Cvet- Testbed Provides: Full access to the Node (yes you can re-compile your kernel) Mobility (10 Cars - 20 Bus) THANKS MARIO Mobility Trace Collections Emulation environment that exactly replicate the test-bed Mobility Models: MobiDense a Model that generates Synthetic traces very accourate. Availabe at starting Sept 1st. WE NEED 4 USERS starting SEPT 7.

The C-VeT testbed

The End Thank You

12G. Pau NSF Mobility Rutgers, `07 Example: Portland, Oregon Some statistics: Cars: 16,000/3500 (tot/avg #) Area: downtown Portland (3 x 7km) Granularity 1sec Microscopic traffic simulation Data: US Bureau of Census Maps: Tiger/Portland Transportation Authority

13G. Pau NSF Mobility Rutgers, `07 Example: Portland, Oregon. CORSIM simulated traces starting from the US bureau of census data. Tiger Database Maps, integrated with the street signal timing. Access point locations in Portland downtown are used to perform connectivity simulations. Detailed propagation models used to perform the simulations. Data courtesy of LANS

14G. Pau NSF Mobility Rutgers, `07 Mobility Models: (Portland, Oregon) Different Mobility Models on the same area. Substantial differences in Connectivity!

15G. Pau NSF Mobility Rutgers, `07 Actual Traces No real actual traces publically available yet! Available Bus Aggregated Traces Campus pedestrian traces (Crawdad) Emergency Vehicle traces (available 2nd semester 07)

16G. Pau NSF Mobility Rutgers, `07 VANET detailed simulations Traffic Simulato r Maps Signals Light timing Actions Population Stats Mobility Traces Buldings Propagation details Network Simulator