International Journal of Computer Science and Information Technologies
The IEEE 802.16 Working Group and was designed to support the bandwidth demanding applications with Quality of Service (QoS). Bandwidth is reserved for each application to ensure the QoS. For Variable Bit Rate (VBR) applications, however, it is difficult for the Subscriber Station (SS) to predict the amount of incoming data. It is developing a standard for broadband wireless access in Metropolitan Area Networks (MAN) known as WiMAX. One of the features of the MAC layer, in this standard, is that it is designed to provide differentiated servicing for traffic with multimedia requirements.