International Association of Computer Science and Information Technology(IACSIT)
IEEE 802.16m standard redefined with many improvements to offer the users with better Quality of Service (QoS) and seamless mobility. Emerging multimedia services like immersive environments, IPTV applications, video conferencing, mobile online gaming and 3D virtual world requires reliable communication even in high mobility in heterogeneous network environment, denser area and in cell edges. For this reliable communication and to ensure the QoS, Buffer allocation is the major issue in WiMAX 16m networks. The lack of buffer will degrade the performance in terms of packet loss and queuing delay.