Asian Journal of Engineering and Technology Innovation

Asian Journal of Engineering and Technology Innovation

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Investigation on Evolutionary Scheduling Algorithm for Provisioning QOS on WiMAX Network

Sharana Basaiah PM and Ravi Shankar H

Department of Computer Science and Engineering REVA Institute of Technology and Management

Abstract

WiMAX is a IEEE 802.16 standards used for communication between wide range of wireless mobile de-vice. WiMAX provides and interaction between base station and subscriber station through PHY layer and MAC layer provides QoS service. In today’s Internet world, many services (data, Voice, Video) require Variable bandwidth, efficient packet queuing and scheduling algorithm to achieve guaranteed network performance. Each services require different classes of QOS. Internet standard proposed different architecture which works on the packets classified in to different service class based on the QOS requirement of the application. WiMAX supports various scheduling algorithms to support varies service class. In this survey, we introduce a differentiated scheduling technique which will be an optimization over WFQ (Weighted Fair Queuing) and WFQ+(Worst case fair weighted fair queuing+), which calculate and updates the weight of the traffic flow dynamically based on burst and load. This also optimizes the calculation of virtual time and reduces the complexity, which is suitable for a advanced system.

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