Efficient Localization based on Imprecise Anchors in RFID System Motivation The widely deployed RFID tags are natural anchor nodes with imprecise locations. It is possibl to the categ We propose solutions to locate the mobile the layout d user based on imprecise anchor nodes in RFID systems. When multiple categories of tags are scanned,the reader's location can be computed more accurately,by sufficiently leveraging the layout information of these categories. Historical Liberal Science Fiction Biographical Xiang Lu,Lei Xie,Yafeng Yin,Wei Wang,Baoliu Ye,Sanglu Lu State Key Laboratory for Novel Software Technology,Nanjing University,ChinaXiang Lu, Lei Xie, Yafeng Yin, Wei Wang, Baoliu Ye, Sanglu Lu State Key Laboratory for Novel Software Technology, Nanjing University, China Efficient Localization based on Imprecise Anchors in RFID System • The widely deployed RFID tags are natural anchor nodes with imprecise locations. • It is possible to locate the user according to the categories of the scanned tags and the layout of the merchandize. • When multiple categories of tags are scanned, the reader’s location can be computed more accurately, by sufficiently leveraging the layout information of these categories. Motivation We propose solutions to locate the mobile user based on imprecise anchor nodes in RFID systems