A Spatially Aware RFID-Enhanced Wireless Sensor Network

Radio frequency identification (RFID) systems are becoming increasingly popular for automatic object identification and supply chain management. Wide acceptance of this technology has led to several new areas of research, one of which is RFID-enhanced wireless sensor networks (WSNs). Such networks have the ability to self-organize, identify tagged objects, perform localization, and carry out searches; all of which are enablers of pervasive computing. This paper therefore presents various challenges to creating such networks, and describes our recent research on energy efficient RFID tag reading protocols.