2. Introduction
Wireless Personal Area Network (WPAN)- full mesh/partial mesh topology
(IEEE802.15.4)
Zigbee Applications:
1. Home Automation
2. Medical Data Collection
3. Industrial Control Systems
4. meter reading system
5. light control system
3. ZigBee Devices
● Zigbee Coordinator Device:
communicates with routers
● Zigbee Router: passing the data
between devices
● Zigbee End Device: device that
is going to be controlled(low
power and cost)
4. Characteristics
● Low Power Consumption
● Low Data Rate (20- 250 kbps)
● Short-Range (75-100 meters) [(10-100m)]
● Network Join Time (~ 30 msec)
● Support Small and Large Networks (up to 65000 devices (Theory); 240
devices (Practically))
● Low Cost of Products and Cheap Implementation (Open Source Protocol)
5. Zigbee Network Topologies
● Star Topology (ZigBee Smart
Energy): Consists of a
coordinator and several end
devices
6. ● Tree Topology:
a. network consists of a central
node which is a coordinator,
several routers, end devices,
b. Routers function is to extend
the network coverage.
7. ● Mesh Topology (Self Healing
Process):
Mesh topology consists of one
coordinator, several routers, and end
devices.
Demerits: Additional cost is
required for each node
