Performance modeling of energy management mechanism in IEEE 802.16e mobile WiMAX

Energy management strategy is an important component in the emerging standard IEEE 802.16e supporting mobility. The efficient energy saving mechanism is the foundation to guarantee long lifetime of Mobile Subscriber Station (MSS). In this paper, we characterize the standardized sleep mode in IEEE 802.16e and perform an extensive analysis of the specified energy management scheme in terms of energy consumption and packet delay. The analytical model is developed based on the generalized traffics processes to match the recent state-of-art research on tele-traffic modeling. Simulation results are presented to validate the analytical model; and the illustrative examples are shown to study the interaction between the key parameters and the aforementioned metrics.