WiMAX stands for Worldwide Interoperability for Microwave Access. It is a set of wireless broadband communication standards which are based on IEEE 802.16. It provides media access control and multiple physical layer options. WiMAX 2+ is the latest version and it is a backwards-compatible transition from previous generations. Subscriber stations are the devices that provide connectivity to WiMAX network. It is a long-range system as it covers many kilometers. It uses a QoS mechanism that is based on connections between user device and the base station. WiMAX provides portable mobile broadband connectivity through various devices. It acts a wireless alternative to digital subscriber line and cable. It makes triple-play service offerings possible. Network of WiMAX can be accessed through USB when connected to dongle. WiMAX is an upcoming field of science that has undergone rapid development over the past few decades. This book is compiled in such a manner, that it will provide an in-depth knowledge about the theory and practice of WiMAX. Those in search of information to further their knowledge will be greatly assisted by this textbook.