A middleware-based approach for redundant reader elimination

Redundant reader elimination is a critical approach to optimize the performance of large scale RFID networks. In this paper, an algorithm for redundant reader elimination (MRRE) is presented, which is based on EPC network architecture. MRRE algorithm eliminates redundant readers using the tag information in RFID middleware, with no need for “write-to-tag” operations. Simulation results reveal that, compared with the canonical LEO+RRE algorithm, MRRE can improve the detection rate of redundant readers from 6.27% to 20.80% and decrease the processed quantity of tags from 4.50% to 35.73%. Moreover, MRRE algorithm can advance the deployment rationality of RFID networks.