1. In-vehicle PLC Milad Mohammadi L. Lampe, M. Lok, S. Mirabbasi, M. Mirvakili, R. Rosales, & P. van Veen

2. Outline 1.Background 2.Past Work 3.Present Work / Results 4.Future Work Milad Mohammadi

3. 1. Background Milad Mohammadi

4. Significance Wiring Length: 1955: 45m 2002: 4km Today: 80% of auto-innovations stem from electronics. Wiring harness is the most expensive & complicated electrical component! Milad Mohammadi

5. Motivation Want to ↓ comm. network complexity ↓ weight & price ↑ transmission reliability ↑ throughput Every elec. equipment has a power line  Use POWER-LINE Data Communication Milad Mohammadi

6. Example Milad Mohammadi We are interested in high connectivity

7. 2. Past Work Milad Mohammadi

8. Past Work PSA Peugeot Citroen University of Lille, France Channel Characterization & Modeling Transfer Function Load Noise Impulse Response Milad Mohammadi

9. Past Work PSA Peugeot Citroen University of Lille, France Channel Characterization & Modeling Transfer Function Load Noise Impulse Response Milad Mohammadi

10. 3. UBC PLC Project

11. Present Work Pontiac Solstice 2006 University of British Columbia, Canada Channel Characterization & Modeling Transfer Function Load Noise Milad Mohammadi

12. Present Work Pontiac Solstice 2006 University of British Columbia, Canada Channel Characterization & Modeling Transfer Function Load Noise Milad Mohammadi

13. Setup Milad Mohammadi Two-port Network S-Parameters

14. Setup 8 Nodes 12 Vehicle States 211 Measurements Freq. Range: 500kHz – 100MHz Milad Mohammadi

15. Results Milad Mohammadi

16. Insertion Gain Insertion Gains of the “Cigarette Lighter  Computer Unit” link. Vehicle at 12 different states Milad Mohammadi

17. Insertion Gain Indirect Path  Milad Mohammadi  Direct Path

18. Insertion Gain Direct Path Indirect Path Milad Mohammadi

19. Impedance |Z in | at two different vehicle states Important for Modem Design Front Right Light Milad Mohammadi

20. Statistics: Fixed Gain CDF Plot of all Measurements. Milad Mohammadi

21. Statistics: Fixed Freq. Multiple Freq. (eg FSK) Milad Mohammadi 50th, 10th and 1st percentiles of insertion gains as function of frequency.

22. 4. Future Work Milad Mohammadi

23. Future Work Impulsive Noise Impulse Response Performing Data Communication Milad Mohammadi

24. Group Website Our measurement data are open-source & available at: http://www.ece.ubc.ca/~lampe/VehiclePLC.html Milad Mohammadi

25. Thank You! UBC In-vehicle PLC Group http://www.ece.ubc.ca/~lampe/VehiclePLC.html