Performance Analysis of Quality of Service For Multicast Traffic Delivery Over Wimax Network By Subgroup Formation

Abstract

This research work analyzed the quality of services for the multicast SSs in the WiMAX network using three scheduling techniques such as Conventional Multicast Scheme, Maximum throughput algorithm, and Proportional Fairness. These resource allocation algorithmsare analyzed for assigning the suitable MCS to WiMAX subscriber stations in the network using sub-group formation. The WiMAX network environment is visualized as seven concentric circles for which the users are distributed in the entire region (uniform distribution), central hotspot, edge hotspot, sparse hotspot and in every individual layer respectively. In this subgroup formation, the seven different MCS are dynamically assignedbased on the receiver SNR and receiver sensitivity of the multicast user in each subgroup respectively. The performance evaluation is done for the system parameters like ADR, CDR and Fairness Index for the above-mentioned scenarios in the WiMAX network. The simulation-based study will enable the network operator to decide, either to distribute the network resources fairly among the users by implementing the Proportional fairness policy, or to maximize the network throughput by implementing the Maximum throughput scheme.