This course examines various aspects of communications in wireless networks, with particular emphasis on the study of the evolution of different wireless networking technologies, architectures, protocols and interoperability. Nowadays, users are demanding continuos connectivity even while moving. In order to make this feasible, technicians should be familiarized with technologies and protocols that allow wireless networks interoperability. This course is necessary for those professionals intereseted in the deployment, the design of protocols, and the study of wireless networks, or that wish to have a deep knowledge of distinct wireless networks: from the local area networks such as Wi-Fi, to last generation voice and data networks (3G, Wimax, or LTE, among others).