Abstract— This paper defines an end-to-end QoS functional
model for mobile WiMAX systems and investigate several
technical issues. Our main contribution is to analyze the end-to-
end QoS variations in mobile WiMAX systems according to the
QoS functions. We discuss the strong and weak points of QoS
related functions, which can be affected by the network
architecture, and propose the design examples of a service class
mapping function. To evaluate the end-to-end QoS, we
implemented an end-to-end performance analysis simulator of
mobile WiMAX using OPNET. Simulation results show that the
uplink application layer throughput is about 70 percent of the
uplink physical layer throughput.