The objective of this course is to provide an overview of wireless networks and systems and their technologies, and key wireless services. It describes the basic knowledge necessary to understand wireless data communication, also describes how wireless devices share the frequency band. In this context this course describes key types of wireless networks and systems, and describes its functional parts. The student gets introduced to the most widespread wireless services and to the new trends in wireless industry market. - Intended Learning Outcomes: Overview of various wireless networks, and of network layering model. Understanding spectrum sharing principle. Describing functional parts of wireless networks and system. Describing local wireless networks Wi-Fi and broadband WiMax networks. Describing personal networks Bluetooth Describing mobile networks. Describing satellite networks. Knowing different wireless service types.