ABSTRACT
The Worldwide Interoperability for Microwave Access (WiMAX) technology is based on the IEEE 802.16 standard which offers flexible fixed and mobile wireless solutions along with long-distance high-bandwidth and broadband services. It combines the economic and technological advantages of different transmission technologies to provide a context-aware, adaptive, and ubiquitous service access. Security is one of the major problems that arise at the radio link level between WiMAX nodes. We first briefly present the security of WiMAX access systems as defined in the IEEE 802.16 standards. Then we discuss various security issues that arise in WiMAX infrastructures. We present and discuss several proposed security approaches aimed at achieving an adaptive, scalable, rapid, easy-to-manage, and secure WiMAX service access.
