ABSTRACT
Although there are some legitimate concerns over the diff erent usages of WiMAX networks (e.g., licensed or license-exempt concerns), from the technical aspect, three usage types, fi xed, nomadic, and mobile users, are the target cus tomers of WiMAX networks. Th e fi rst goal of this chapter is to review the standards of WiMAX technologies to support these usage types. Furthermore, from a practical point of view, before the deployment of WiMAX networks achieves its popularity, a hybrid environment of WiMAX and WiFi networks is more likely to coexist for a while. Th erefore, one of the primary concerns is to design a seamless handover process in this hybrid network environment. Th e second goal of this chapter is to dedicate to this issue.
