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Table of Contents
The WiNGS laboratory hosts an outdoor, vehicular, wireless testbed with support for various wide-area experimentation efforts, called MadBed.
Currently, MadBed consists of two wireless nodes mounted on specific city-buses operated by the Madison Metro Transit System.
Testbed Pictures
People
External collaborators
Sprint Laboratories
MadCity Broadband
How to access
The testbed nodes are remotely accessible and programmable. Each node consists of a Intel Core-2 Duo 2.0 GHz laptop, with WiFi interfaces, a 3G EVDO interface, and a Mobile Access Router (MAR) for providing Internet access to the bus passengers. We also have a remote bus tracking interface that allows us to locate the position of the buses in real-time.
Access to this testbed is currently limited to UW-Madison faculty and students. Please email Prof. Suman Banerjee for access and account information.
Papers
- A City-Wide Vehicular Infrastructure for Wide-Area Wireless Experimentation. Justin Ormont, Jordan Walker, Suman Banerjee, Sridhar Machiraju, Mukund Seshadri, Ashwin Sridharan. WinTECH Workshop (co-located with ACM MobiCom), Burlingame, CA, September 2008. pdf
- A Measurement Study of a Commercial-grade Urban WiFi Mesh. Vladimir Brik, Shravan Rayanchu, Sayandeep Sen, Vivek Shrivastava, Suman Banerjee. Internet Measurement Conference, Greece, October 2008. pdf
Phone Testbed
| GPS Till 1st Fix | GPS Continuous Usage | WiFi (tx) | WiFi (rx) | Accelerometer | EVDO (tx) | EVDO (rx) | Compression | Decryption | File Read | File Write |
| x [mW-sec] | x [mW] | x [mW-sec/byte] | x [mW-sec/byte] | x [mW] | x [mW-sec/byte] | x [mW-sec/byte] | x [mW-sec/byte] | x [mW-sec/byte] | x [mW-sec/byte] | x [mW-sec/byte] |
