zigbee vs z-wave-difference between zigbee and z-wave
This page zigbee vs z-wave covers difference between zigbee and z-wave wireless PAN technologies.The other difference between various terms are provided here.
Both the zigbee and z-wave are short range wireless PAN technologies used mainly for remote monitor and control applications as home automation systems. The page provides difference between zigbee and z-wave Personal Area Network technologies. Both technology devices have output power of 1mWatt(0 dBm) and uses 128 bit AES encryption.
About zigbee: It is a routing based radio standard developed by zigbee alliance.
The specifications have been ratified in 2004 while it has been published in 2005.
IEEE 802.15.4 zigbee specifications cover PHY and MAC layers.
The zigbee goals are as follows:
• To provide wireless network for industrial, medical and home automation devices.
• To provide self-organizing network to overcome complexity in installation procedures.
• To provide low data rate and low power consumption wireless system
To achieve the above goals zigbee has different kinds of devices such as network coordinators, FFDs(Full Function Devices) and RFDs(Reduced function devices).
Refer zigbee tutorial for more.
About z-wave: This is also routed radio network owned by company called Sigma Designs, Inc.
z-wave devices send message using radio frequency wave.
It is mainly targetted for home automation.
z-wave network is self organizing and self-healing, hence it is easy to set-up z-wave network.
z-wave has been developed to achieve the following goals in a reliable wireless network.
• Low power system
• Low cost system
• Easy network installation and no network maintenance
• Easy inter-operability among different vendors
Refer z-wave tutorial for more.
Though zigbee and z-wave are similar WPAN technologies and used for similar applications, they have following technical differences.
PHY and MAC
layers of zigbee network
It is an open standard
developed by zigbee alliance
|Developed by Zensys
wireless standard, It is not an open standard. ITU recently added Z-wave PHY and MAC layers in G.9959 standard.
|RF Frequency Band||2.4 to 2.483 GHz,with 16 channels
of 5 MHz bandwidth each
Other optional frequency bands
are 915 MHz band in the US and 868 MHz
band in Europe region
|Z-wave uses part 15 of unlicensed ISM
band 908.42 MHz in US/Canada,
Other countries have their
own frequency band
|Data rate||250Kbps in 2.4GHz band with
40Kbps in 915 MHz band with
20 kbps in 868 MHz band
|9.6 kbps and 40 kbps with GFSK|
|Modulation type|| OQPSK, BPSK modulation as per
PHY layer used
| Gaussin Frequency Shift Keying
|Distance||About 10 meters|| range coverage of 30 meters
can be achieved in free space
|Number of Nodes supported||Zigbee network supports maximum
of upto 65K nodes
|z-wave network can have
upto 232 nodes
|Alliance||Maintained by zigbee alliance
having consortium of
more than 220 members
|Maintained by z-wave alliance
having consortium of
more than 160 members
|Applications||Security and home automation,
smart grid, remote
monitor and control
|Security and home automation|
|Popular devices||EM351, EM357 single chip zigbee
device from Ember,
Zigbee home monitor and control
panel from iControl
|ZM3102, ZM4101, ZM4102 from Sigma Designs|
|Vendors/Manufacturers|| Many vendors which includes Ember,
TI, ATMEL, CEL, Digi,
Jennic, RFM, Lemos
|Available only from one vendor Sigma Designs|
z-wave basic resources
What is Difference between
difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
OFDM vs OFDMA
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile
wibro vs mobile wimax
Microcontroller vs microprocessor