Priority based bandwidth allocation scheme for WIMAX systems

IEEE 802.16 based wireless access scheme (commonly known as WiMAX) is considered as one of the most promising wireless broadband access schemes for communication networks in metropolitan areas today. One of the most challenging tasks in the access scheme is the need to support quality of service (QoS). The paper proposes a priority based bandwidth allocation mechanism in WiMAX networks which is compliant with the standards.

1 Introduction

With the evolution of broadband Internet service, more and more applications move online. Online games, Voice over Internet Protocol (VoIP), rich content web and online TV/radio usage have increased tremendous in the past few years. At the meantime, telecommunication access is moving from wired-centric to wireless-centric mainly due to the convenience of being wireless. Hence Worldwide Interoperability for Microwave Access (WiMAX) was developed as a standards-based technology with ability to delivery of wireless broadband access as an alternative to cable and DSL based access schemes.