WINLAB Research: RollCall RFID - An active tag platform

The RollCall Project aims to build a cost effective asset tracking system by reducing power consumption, thus increasing battery life.

The design argues for the use of active tags for better monitoring of devices over longer distances, while operating them in a transmit only mode. Power lost in idle listening is conserved by eliminating the receiver entirely from the tags. More details on this project are available here.

Related publications:

• RollCall : The Design For A Low Cost And Power Efficient Active RFID Asset Tracking System 
  Gautam Bhanage, Yu Zhang, Yanyong Zhang, Trappe Wade, and Rich Howard
  Proceedings of Eurocon 2007, 2007. [.pdf]

• Facilitating an Active Transmit-only RFID System through Receiver-based Processing 
  Yu Zhang, Gautam Bhanage, Wade Trappe, Yanyong Zhang, and Rich Howard
  Proceedings of the Fourth Annual IEEE Communications Society Conference on Sensor, Mesh, and Ad Hoc Communications and Networks, 2007. [.pdf]

• Relay MAC: A Collision Free and Power Efficient Reading Protocol for Active RFID Tags 
  Gautam Bhanage, and Yanyong Zhang
  Proceedings of the 15th International Conference on Computer Communications and Networks (ICCCN), 2006.[.pdf]