ZigBee
Technology Overview
ZigBee is the name of a specification for a suite of high-level communications protocols using small, low-power digital radios based on the IEEE 802.15.4 standard for wireless personal area networks (WPANs). ZigBee is targeted at RF applications that require a low data rate, long battery life, and secure networking.
Applications
ZigBee addresses home automation applications with very long life, such as controlling lights, security systems, fire systems, and heating and air conditioning. A ZigBee device is able to run on one battery for several years.
Key Parameters
| ZigBee™ IEEE 802.15.4 | |
|---|---|
| Frequency Range |
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| Modulation |
BPSK (868/915 MHz), OQPSK (MSK) (2.4 GHz) |
| Multiple Access | CSMA/CA |
| Duplex (Uplink/Downlink) | TDD |
| Channel Bandwidth | 5 MHz |
| Number of Channels |
1 (868 MHz) 10 (915 MHz) 16 (2.4 GHz) |
| Peak Data Rate | 20 kbit/s
(868 MHz) 40 kbit/s (915 MHz) 250 kbit/s (2.4 GHz) |
| Max. Speed | 1 km/h |
| Max. Distance | 10 m
typ 100 m max |
Standardization
The ZigBee specifications (IEEE 802.15.4) were ratified on December 14, 2004.
