Abstract
Radio frequency identification has become a vital technique for enabling intelligent supply chain management. Throughout the life cycle of the supply chain, one-for-one checking is necessary at all the handover points where physical shipped inventory is checked against with the receiver’s order to discover discrepancies because of missing or misplaced objects. Such operation is so universal that the improvement over its efficiency can significantly benefit the whole supply chain. Yet, there are a few challenging issues, namely, inconsistent tags, high-volume data, and high network latency. In this paper, we first carefully analyze the characteristics of EPCglobal Network. We then design two discrepant tag identification protocols with different optimization goals including minimum communication data and minimum communication round. Also, we perform thorough analysis by comparing our proposals with state-of-the-art methods and extensive experiments to validate the effectiveness and efficiency of our methods.
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