This course focusses  the area of wireless communications, which has witnessed revolutionary developments in the last decade.  While previously there existed only 2G GSM-based communication systems, which supported a data rate of around 10 kbps, several innovative and cutting-edge wireless technologies have been developed in the last ten years. These advances have led subsequently to the proposal and implementation of 3G ,4G and 5G wireless technologies such as  LTE, and WiMAX, which can support data rates in excess of 100 Mbps. Further, futuristic wireless networks can be employed not only for voice communication, but also for multimedia-based broadband communication such as video conferencing, video calling, etc.