Wireless Communication - Zigbee, Bluetooth - IIIT

Zigbee Node Types
Coordinator: Only mandatory node type in the network; Acts as root
node and performs multiple network management activities
Only FFD in 802.15.4 terminology can act as network
coordinator
Router: A 802.15.4 FFD node not acting as network coordinator;
Used to extend network coverage area beyond transmission range of
single device; Increase network reliability by creating additional data
routing paths
End device: Correspond to RFD in 802.15.4; Can directly
communicate with a single coordinator/router
Node addressing: Each node that joins the zigbee network gets a 16
bit network address (How many bits was the MAC address?)
Communication at network level is performed based on this
address; Direct communication between two neighboring devices is
based on MAC address