Embedding and Verification of ZigBee Protocol Stack in Event-B

ZigBee is a specification that enhances the IEEE 802.15.4 standard by adding network and security layers and an application framework for high level communication in Wireless Sensor Networks (WSN). Since ZigBee is essential in the operation of WSN; it is imperative to verify the correctness of its design. Formal methods can be used efficiently to verify a wide range of systems, including ZigBee protocol stack specification. In this paper we use Event-B formal verification method to model and verify ZigBee protocol stack by providing embedding of the protocol primitives in Event-B. Our approach takes advantage of the Event-B method capabilities to model designs at different levels of abstraction which fits the layered nature of the protocol.