Networking Over White Spaces (KNOWS)

To the best of our knowledge this is the first urban WSN. (Click here for deployment pictures)

Technologies tested include:

• An opportunistic data network in the UHF and VHF bands
• Channel occupancy database service with real-time Longley-Rice RF propagation modeling over NASA Terrain Data
• Coexistence with wireless microphones
• Handling mobile clients
• Varying channel widths to accommodate varying needs of the application

http://research.microsoft.com/en-us/projects/KNOWS/deployment.aspx