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ZigBee is a wireless communication protocol designed for low-power, low-data-rate applications. It is based on the IEEE 802.15.4 standard and is commonly used in various applications such as home automation, industrial control, and wireless sensor networks. Here are some key points about ZigBee:

  1. Low-Power and Low Data Rate: ZigBee is designed to operate on low-power devices with limited processing capabilities. It is optimized for applications that require low data rates, long battery life, and extended network coverage.
  2. Mesh Networking: ZigBee networks typically utilize a mesh topology, where devices can communicate with each other directly or through other devices, forming a self-healing and robust network. This allows for better coverage and reliability, as devices can relay messages to reach destinations that are out of direct range.
  3. IEEE 802.15.4 Standard: ZigBee is built upon the IEEE 802.15.4 standard, which specifies the physical and media access control (MAC) layers for low-rate wireless personal area networks (LR-WPANs). This standard defines the radio frequency, data rates, and modulation schemes used by ZigBee devices.
  4. Application Profiles: ZigBee supports various application profiles that define specific sets of functions and features for particular applications. These profiles ensure interoperability among ZigBee devices from different manufacturers. Examples of application profiles include ZigBee Home Automation, ZigBee Smart Energy, and ZigBee Health Care.
  5. Energy Efficiency: ZigBee devices are designed to be energy-efficient, making them suitable for battery-powered applications. Devices can enter sleep modes to conserve power and wake up periodically to perform necessary tasks, resulting in longer battery life.
  6. Security: ZigBee incorporates security features to protect the network and ensure data integrity. It supports encryption and authentication mechanisms to prevent unauthorized access and tampering of transmitted data.

ZigBee has gained popularity in applications that require low-power wireless communication and reliable connectivity. Its mesh networking capabilities, energy efficiency, and support for various application profiles make it suitable for a wide range of IoT (Internet of Things) and wireless sensor network deployments.

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