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Sensors 2011, 11(10), 9242-9259; doi:10.3390/s111009242

Design of a Covert RFID Tag Network for Target Discovery and Target Information Routing

Department of Electrical Engineering, The Pennsylvania State University, University Park, PA 6802, USA
* Author to whom correspondence should be addressed.
Received: 10 August 2011 / Revised: 15 September 2011 / Accepted: 16 September 2011 / Published: 27 September 2011
(This article belongs to the Section Physical Sensors)
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Radio frequency identification (RFID) tags are small electronic devices working in the radio frequency range. They use wireless radio communications to automatically identify objects or people without the need for line-of-sight or contact, and are widely used in inventory tracking, object location, environmental monitoring. This paper presents a design of a covert RFID tag network for target discovery and target information routing. In the design, a static or very slowly moving target in the field of RFID tags transmits a distinct pseudo-noise signal, and the RFID tags in the network collect the target information and route it to the command center. A map of each RFID tag’s location is saved at command center, which can determine where a RFID tag is located based on each RFID tag’s ID. We propose the target information collection method with target association and clustering, and we also propose the information routing algorithm within the RFID tag network. The design and operation of the proposed algorithms are illustrated through examples. Simulation results demonstrate the effectiveness of the design.
Keywords: RFID tag network; pseudo-noise signal; cluster; routing RFID tag network; pseudo-noise signal; cluster; routing
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Pan, Q.; Narayanan, R.M. Design of a Covert RFID Tag Network for Target Discovery and Target Information Routing. Sensors 2011, 11, 9242-9259.

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