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Thread – low-power mesh protocol designed for battery-powered devices, which Matter uses as one of its supported transport layers; Zigbee and Z-Wave – wireless mesh protocols for home automation, can be used with Matter and a compatible bridge; Amazon Alexa – Amazon's smart assistant and home control system; HomeKit – Apple's smart home ...
Thread is an IPv6-based, low-power mesh networking technology for Internet of things (IoT) products. [1] The Thread protocol specification is available at no cost; however, this requires agreement and continued adherence to an end-user license agreement (EULA), which states "Membership in Thread Group is necessary to implement, practice, and ship Thread technology and Thread Group specifications."
The relationship between IEEE 802.15.4 and Zigbee [8] is similar to that between IEEE 802.11 and the Wi-Fi Alliance. The requirements for membership in the Alliance cause problems for free-software developers working with Zigbee because the annual fee conflicts with the GNU General Public Licence. [9]
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.
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.
Zigbee is for low power low bandwidth application scenarios. Thread is a consumer wireless networking protocol built on open standards and IPv6/6LoWPAN protocols. Thread's features include a secure and reliable mesh network with no single point of failure, simple connectivity and low power.
Here’s Mark Zuckerberg, in yesterday’s announcement post: “Making Threads interoperable will give people more choice over how they interact, and it will help content reach more people.”
The Connected Home over IP project group was launched and introduced by Amazon, Apple, Google, [207] Comcast and the Zigbee Alliance on December 18, 2019. [208] The project is backed by big companies and by being based on proven Internet design principles and protocols it aims to unify the currently fragmented systems.