“…By verifying the unique IDs of RFID tags attached to physical objects, RFID readers are able to identify and itemize the objects. Due to small form factor and low cost of RFID tags, RFID systems provide us a scalable and economic way for managing massive objects in a variety of applications including inventory management [8,14,17,22,25], logistics [26,28], object tracking [15,18], etc.…”