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

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Presentation transcript:

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

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

1. Background Milad Mohammadi

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

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

Example Milad Mohammadi We are interested in high connectivity

2. Past Work Milad Mohammadi

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

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

3. UBC PLC Project

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

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

Setup Milad Mohammadi Two-port Network S-Parameters

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

Results Milad Mohammadi

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

Insertion Gain Indirect Path  Milad Mohammadi  Direct Path

Insertion Gain Direct Path Indirect Path Milad Mohammadi

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

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

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

4. Future Work Milad Mohammadi

Future Work Impulsive Noise Impulse Response Performing Data Communication Milad Mohammadi

Group Website Our measurement data are open-source & available at: Milad Mohammadi

Thank You! UBC In-vehicle PLC Group

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