The core components of the Zigbee protocol stack
The Zigbee protocol stack consists of multiple layers, each layer corresponding to specific communication functions and responsibilities. These layers include:
Physical layer (PHY): Responsible for modulation, demodulation and transmission frequency settings, using direct sequence spread spectrum technology to ensure stable signal transmission.
Media Access Control Layer (MAC): Handles frame transmission, acknowledgment, and contention resolution for access networks.
Network layer (NWK): Implements device address allocation, routing, and end-to-end transmission of messages.
Application Layer (APL): Provides interfaces to application developers, including advanced tools for device management and data interaction.
The unique advantages of Zigbee
Zigbee network stands out among many wireless technologies with the following unique advantages:
Low power consumption design: Zigbee devices can enter sleep state in inactive mode, significantly extending battery life and suitable for applications that require long-term operation.
High network reliability: Using a mesh network architecture, even if some nodes fail, the network can still self-repair and re-route to ensure continuous transmission of information.
Powerful security performance: Using the AES-128 encryption standard to provide end-to-end security for network communications.
