International Journal of Engineering Sciences & Research Technology (IJESRT)
Zigbee is one of the most widely used transceiver standard in wireless sensor networks. Zigbee over IEEE 802.15.4 defines specifications for Low Rate WPAN (LR-WPAN) to support lower monitoring and controlling devices. Zigbee is developed by Zigbee alliance, which has hundreds of member companies. Zigbee alliance (software) defines the network, security and application layers. IEEE802.15.4 (hardware) defines the physical and media access control layers for LR-WPAN. This paper presents a detailed study of Zigbee wireless standard, IEEE802.15.4 specification, Zigbee device types, the protocol stack architecture and its application.