Zigbee is a technological standard designed for control and sensor networks based on IEEE 802.15.4. The standard is developed and promoted by the Zigbee Alliance.

2. ZIGBEE
 ZigBee is a technological standard designed for
control and sensor networks.
 Based on the IEEE 802.15.4 Standard for WPAN.
 Created by the ZigBee Alliance.

3. ZIGBEE ALLIANCE
and many more....

4. CHARACTERISTICS
 Low Cost
 Low Power Consumption
 Low Data Rate
 High Transmission Range
 Scalability
 Reliability
 High Security
 Mesh Networking

5. TOPOLOGIES

6. ARCHITECTURE
Zigbee Alliance:
oThe Software
oNetwork, Security &
Application Layers
oBrand Management
IEEE 802.15.4:
oThe Hardware
oPhysical & MAC
Layers

7. ARCHITECTURE

8. PHYSICAL LAYER
PHY functionalities:
 Activation and deactivation of the radio transceiver
 Energy Detection (ED) within the current channel
 Link Quality Indication (LQI) for received packets
 Clear Channel Assessment for CSMA-CA
 Channel frequency selection
 Data transmission and reception

9. OPERATING FREQUENCIES
 ISM ( INDUSTRIAL SCIENTIFIC AND MEDICAL)
 868 MHz European Band at 20kbps
 915 MHz North American Band at 40kbps
 2.4 GHz Global Band at 250kbps
Center
Frequency(
MHz)
Frequency
Band
(MHz)
No. of
channels
Channel
(k)
Bit Rate
(kb/s)
868 868-868.8 1 0 20
915 902-928 10 1-10 40
2450 2400-2483.5 16 11-26 250

10. MAC LAYER
 Device Classes
 Full function device (FFD)
 Can talk to any device.
 Reduced function device (RFD)
 Cannot talk to all the devices.
 Address
 All devices must have 64 bit IEEE addresses
 Short (16 bit) addresses can be allocated to reduce packet
size

11. DEVICES
• Zigbee Coordinator (ZC):
• it is the root of the network tree
• acts as a bridge to other networks.
• Zigbee Router (ZR):
• acts as an intermediate router.
• Zigbee End Devices (ZED):
• functionality to talk to the parent node.
• cannot relay data from other devices
• allows the node to be asleep .

12. MAC LAYER
 Transmission Mode
 Beacon enable mode
 Periodic data
 Repetitive low latency data using.
 Non-Beacon enable mode
 Intermittent data using.

13. APPLICATION SUPPORT (APS)

14. APPLICATION FRAMEWORK

15. ZIGBEE DEVICE OBJECT (ZBO)

16. MESH NETWORKING

17. MESH NETWORKING

18. MESH NETWORKING

19. MESH NETWORKING

20. MESH NETWORKING

21. APPLICATIONS
PERSONAL
HEALTH CARE
ZigBee
LOW DATA-RATE
RADIO DEVICES
HOME
AUTOMATION
CONSUMER
ELECTRONICS
PC &
PERIPHERALS
TOYS &
GAMES
INDUSTRIAL
&
COMMERCIAL

22. ZIGBEE AND BLUETOOTH
Feature(s) Bluetooth ZigBee
Power Profile days years
Complexity complex Simple
Nodes/Master 7 64000
Latency 10 seconds 30 ms – 1s
Range 10m 70m ~ 300m
Extendibility No Yes
Data Rate 1 Mbps 250 Kbps
Security 64bit, 128bit 128bit AES and
Application Layer

23. 802 WIRELESS SPACE
Data Rate (Mbps)
ZigBee
802.15.4
802.15.3
802.15.3a
802.15.3c
WPAN
WLAN
WMAN
WWAN
WiFi
802.11
0.01 0.1 1 10 100 1000
Bluetooth
802.15.1
IEEE 802.22
WiMax
IEEE 802.16
IEEE 802.20