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Performance Analysis of UGS, rtPS, nrtPS Admission Control in WiMAX Networks

IEEE 802.16 standard provides a broadband wireless access solution. WiMAX (Worldwide interpretability for microwave access) is the business definition of the 802.16-2004 amendment. In WiMAX, quality of service (QoS) is provided through both classification and scheduling of the four different types of traffic classes defined by the standard. Each class has it own bandwidth requirements as well as its level of QoS, which has to be maintained. In this paper, we provide a performance analysis of three types of connections defined in the standard (UGS, rtPS, nrtPS). Different levels of priority and blocking probability are assigned to each class of service. This performance analysis has been done using an analytical model for evaluating admission control (AC) for the previous mentioned classes in WiMAX network.