1. Protocols and Architectures for Wireless Sensor Networks;Karl,2005
2. A survey on sensor networks;Akyildiz;IEEE Communications Magazine,2002
3. IEEE standard: Part 15.4: wireless medium access control (MAC) and physical layer (PHY) specifications for low-rate wireless personal area networks (WPANs), in: IEEE, 2006.
4. Low-Rate Wireless Personal Area Networks – Enabling Wireless Sensors with IEEE 802.15.4;Gutierrez,2003
5. ZigBee Specification 2006, Zigbee Alliance, available online at: http://www.zigbee.org.