Liu Alex X. Liu & Li Keqiu Li 
RFID Protocol Design, Optimization, and Security for the Internet of Things 

Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. The tags contain electronically stored information. RFIDs have been widely used in countless applications such as object tracking, 3D positioning, indoor localization, supply chain management, automotive, inventory control, anti-theft, anti-counterfeit, and access control. The Internet of Things (Io T) promises a huge growth in RFID technology and usage.