An energy efficient scheme for detecting redundant readings in cluster-based model of integrated rfid and wireless sensor networks

Abstract

For efficient detection of redundant readings by the overlapped reading ranges, by avoiding the unnecessary transmission of reading data and unsuccessful detection attempts, detecting the redundant readings as early as possible is critical for energy efficiency in the integrated RFID and WSNs. In this paper, we propose a cluster-based efficient detection scheme called ASER (Aggregation-based Scheme for Eliminating Redundancy) for detecting redundant readings with the purpose of attaining energy efficiency in integrated RFID and WSNs. ASER is based on a 2-Phase Aggregation (2PA) scheme whose main purpose is to localize the detection attempts without traversing nodes in the network. ASER can minimize the unnecessary overhead by detecting redundant readings in advance before they traverse along the routing path. According to results of performance evaluation, ASER shows considerable improvement in reduction of both communication cost and computational detection overhead to detect the redundancy. © Research India Publications.