a group of standards of wireless communicatoins defined by IEEE, is for wireless personal area networks (WPANs). IEEE 802.15 has characters such as short-range, low power, low cost, small networks and communication of devices within a Personal Operating Space. The current technologies included in the IEEE 802.15 family are: 802.15.1 (Bluetooth), 802.15.2 (UWB) and 802.15.4 (ZigBee). IEEE Specification: IEEE 802.15