Wireless communication has become very popular in industry, business, commerce, and in everyday life. Wireless technology spans from user applications, such as personal area networks, ambient intelligence, and wireless local area networks, to real-time application. The given paper shows the analysis of wireless network security and availability, and helps to develop safe and effective system usable for future design. Smart building automation system is one of work areas of embedded wireless network in system design. Technique of criticality matrix based security assessment is described and illustrated for smart BAS.
