1. Crossbow MICAz (MPR2400) Radio Modulehttp://www.xbow.com
2. MAC Essentials for Wireless Sensor Networks
3. Chipcon AS, CC1000: Single Chip very Low Power RF transceiverwww.ti.com/lit/ds/symlink/cc1000.pdf
4. CC2420: 2.4 GHz IEEE 802.15.4 / ZigBee-Ready RF Transceiverhttp://www.ti.com/lit/ds/symlink/cc2420.pdf