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Zigbee is an IEEE 802.15.4-based specification for a suite of high-level communication protocols used to create personal area networks with small, low-power digital radios, such as for home automation, medical device data collection, and other low-power low-bandwidth needs, designed for small scale projects which need wireless connection.
Nodes typically connect in a star or mesh topology. While most individual nodes in a WSAN are expected to have limited range (Bluetooth, Zigbee, 6LoWPAN, etc.), particular nodes may be capable of more expansive communications (Wi-Fi, Cellular networks, etc.) and any individual WSAN can span a wide geographical range. An example of a WSAN would ...
Some examples of node devices – door locks, smoke detectors, motion detectors, remote controls, gas and electricity meters, baby monitors, elderly care, etc. ULE communication range is among the longest in the short range wireless communication technologies: over 50 meters in buildings and up to 300 meters in the open air.
IEEE 802.15.4 protocol stack. Devices are designed to interact with each other over a conceptually simple wireless network.The definition of the network layers is based on the OSI model; although only the lower layers are defined in the standard, interaction with upper layers is intended, possibly using an IEEE 802.2 logical link control sublayer accessing the MAC through a convergence sublayer.
A piconet typically has a range of 10 metres (33 ft), although ranges of up to 100 metres (330 ft) can be reached under ideal circumstances. Long-range Bluetooth routers with augmented antenna arrays connect Bluetooth devices up to 1,000 feet (300 m). [2]
Zigbee; Standardisation Proprietary Proprietary Standard Standard Standard Topologies Point-to-point, star, tree, mesh [3] Mesh: Point-to-point, scatternet Point-to-point, star, mesh Mesh Band 2.4 GHz 2.4 GHz and 900 MHz (varies slightly per country) 2.4 GHz 2.4 GHz 2.4 GHz (+ sub-GHz for Zigbee PRO) Range 30 metres at 0 dBm [11] 10–100 metres
This 2023 model improves on the already-great 2021 version in a few ways: It has a faster processor and support for more smart-home devices (namely those compatible with Matter, Thread and Zigbee).
The task group TG3c developed a millimeter-wave-based alternative physical layer (PHY) for the existing 802.15.3 Wireless Personal Area Network (WPAN) Standard 802.15.3-2003. The IEEE 802.15.3 Task Group 3c (TG3c) was formed in March 2005. This mmWave WPAN is defined to operate in the 57–66 GHz range.