A Quality of Service Architecture for IEEE 802.16 Standards

A worldwide demand for a high-speed, always-on broadband wireless system across residential and business regions is emerging rapidly due to an increasing reliance on Internet for information, business and entertainment, as well as new bandwidth-intensive applications. The IEEE 802.16 Air Interface Standard is truly a state-of-the-art specification for fixed Broadband Wireless Access (BWA) Systems employing a point-to-multipoint (PMP) architecture. Although IEEE 802.16 standards define different mechanisms to provide Quality of Service requirements, it is the responsibility of the developers to obtain efficient designs and thus, providing QoS in BWA systems has become a challenging issue for designers of such systems. In this paper, we introduce a novel architecture to support Quality of Service in IEEE 802.16 standards. Moreover, we propose a design approach to implement such architecture. Simulation result shows the high performance of our architecture for all types of traffic classes defined by the standard.