A Tree-Based Hierarchy Framework for RFID Data Repository

RFID (Radio Frequency Identification) is a useful technology for various pervasive applications. And with the widely deployment of RFID tags, RFID based locating and tracking applications become more and more popular. However, how to manage huge amount of data produced by RFID Tag Read Events (TREs) has become a challenge. This paper proposes a Tree-based Hierarchy Repository Framework, in which TREs data of different tags is stored in different nodes instead of one central node. This paper also investigates the host node selection problem, and proposes Exclusively Host Selection (EHS) Algorithm to choose a suitable node to store the related TREs data, through which the data transmission load will be effectively reduced. Finally, the experiment results show that this framework is an effective approach to store RFID data.