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While several readers are placed together for improving read rate and correctness, reader collision problems happen frequently and inevitably. High probability of collision not only impairs the benefit of multi-reader deployment, but also results in misreading in moving tags RFID applications. In order to eliminate or reduce reader collision, a current centralized reader network can be modeled as a collaborative network for readers to directly exchange information with other readers. Peer-to-peer computing technology is an emergent technology and is also a preferred candidate for this purpose. Hence, in this paper we present a collaborative peer-to-peer network for reader collision model. This Interconnected RFID Reader Collision Model (IRCD) is constructed upon the RFID reader collision so that it is a fully distributed and self-organized overlay network. IRCD can be used in a dense reader environment to exchange collision related information directly among readers without any central control or intermediation. To illustrate how to use IRCD, a query-hit rate-based dynamic anti-collision scheme is also proposed in this paper.
RFID, 2007. IEEE International Conference on
Date of Conference: 26-28 March 2007