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engineering
Wireless LAN, Mobile Internet
Connectivity, and Personal Area Network
Lesson 11
ZigBee

© Oxford University Press 2007. All rights reserved.

1

ZigBee─ a suite of high-level communication protocols
• ZigBee 1.0 specification released in
December 2004
• ZigBee devices conform to the IEEE
802.15.4-2003 Wireless Personal Area
Network (WPAN) standards

© Oxford University Press 2007. All rights reserved.

2

ZigBee IEEE 802.15.4
•
•

Lower stack size (28 KB) in the protocol than Bluetooth
Lower network-joining latency when compared to Bluetooth (250 KB)

© Oxford University Press 2007. All rights reserved.

3

ZigBee─ a suite of high-level communication protocols
• ZigBee devices form a personal area
(home) network of embedded sensors, industrial controllers, or medical data systems © Oxford University Press 2007. All rights reserved.

4

ZigBee IEEE 802.15.4
•
•

For Low transmitting power systems
Interoperable standard based on RF wireless communication

© Oxford University Press 2007. All rights reserved.

5

ZigBee
•

•

•

Expected to provide large-scale automation and the remote controls up to a range of 70 m
Data rates of 250 kbps, 40 kbps, and 20 kbps at the spectra of 2.4 GHz, 902 MHz to 928 MHz, and 868 MHz to 870 MHz, respectively Uses DSSS
© Oxford University Press 2007. All rights reserved.

6

ZigBee
•
•
•
•

Designed for robotic control
Industrial
Home
Monitoring applications

© Oxford University Press 2007. All rights reserved.

7

ZigBee Applications
•

•

ZigBee enabled electric meter communicates electricity consumption data to the mobile meter reader
A ZigBee enabled home security system alerts the mobile user of any security breach at the home

© Oxford University Press 2007. All rights reserved.

8

Three type of ZigBee devices in networks •
•
•

ZigBee Coordinator
End-devices
ZigBee router-devices

© Oxford University
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