Chapter 4. IEEE 802.15.4 Media Access Control (MAC) Layer
Introduction
The Media Access Control (MAC) layer, specified by IEEE 802.15.4, is located between the physical and network layers. The MAC layer performs the following functions:
• Transfers data to the network layer and vice versa; transfers data to the physical layer and vice versa
• End device association and disassociation
• In the coordinator, offers optional guaranteed time slot (GTS) for each device accessing the network
• Generates the beacon frame in a coordinator
• Supports device security
• Provides carrier-sense multiple access with collision avoidance (CSMA/CA) as the access method for the network
• Provides a reliable connection between two MAC layers by using an acknowledgment ...
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