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2. The ZigBee Specification version 2.0,
http://www.zigbee.org/Standards/Downloads.aspx
3. Zurawski, R.: Embedded Systems Handbook: Networked Embedded Systems, vol. 2. CRC Press (2009)
4. Network Simulator version - 2,
http://www.isi.edu/nsnam/ns/
5. Lu, G., Krishnamachari, B., Raghavendra, C.: Performance evaluation of the IEEE 802.15. 4 MAC for low-rate low-power wireless networks. In: 2004 IEEE International Conference on Performance, Computing, and Communications, pp. 701–706 (2004)