A Fast Approach to Unknown Tag Identification in Large Scale RFID Systems
Radio Frequency Identification (RFID) technology has been widely applied in many scenarios such as inventory control, supply chain management due to its superior properties including fast identification and relatively long interrogating range over barcode systems.It is critical to efficiently identify the unknown tags because these tags can appear when new tagged objects are moved in or wrongly placed.The state-of-the-art Basic Unknown tag Identification Protocol-with Collision-Fresh slot paring (BUIP-CF) protocol can first deactivate all the known tags and then collect all the unknown tags.However, BUIP-CF protocol investigates an ALOHA-like technique and causes too many tag responses, which results in low efficiency.This paper proposes a Fast Unknown tag Identification (FUI) protocol which investigates an indicator vector to label the unknown tags with a given accuracy and removes the time-consuming tag responses in the deactivation phase.FUI also adopts the classical Enhanced Dynamic Framed Slotted ALOHA (EDFSA) protocol to collect the labeled unknown tags.We then investigate the optimal parameter settings to maximize the performance of the proposed FUI protocol.Extensive simulation experiments are conducted to evaluate the performance of the proposed FUI protocol and the experimental results show that it considerably outperforms the state-of-the-art protocol.
RFID system Unknown Tags Identification Time-efficiency
Xiulong Liu Keqiu Li Yanming Shen Geyong Min Bin Xiao Wenyu Qu Hongjuan Li
School of Computer Science and Technology,Dalian University of Technology,China School of Computing,Informatics and Media,University of Bradford,U.K. Department of Computing,The Hong Kong Polytechnic University,Hong Kong School of Information Science and Technology,Dalian Maritime University,China
国内会议
成都
英文
262-270
2013-10-01（万方平台首次上网日期，不代表论文的发表时间）