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What is Scheduling Service

Handbook of Research on Mobile Multimedia, Second Edition
In WiMAX a set of services offered at the MAC layer to handle arriving MAC protocol data units with different QoS requirements.
Published in Chapter:
Research Challenges in Multimedia WiMAX
Julio Aráuz (NEC Laboratories Europe, Germany)
Copyright: © 2009 |Pages: 15
DOI: 10.4018/978-1-60566-046-2.ch003
On the stage of today’s communications world, broadband mobile technologies are a continuously flourishing trend. In this context, WiMAX, a technology based on the IEEE 802.16 standards, currently plays a noteworthy role. Throughout the chapter we survey current literature related to the delivery of multimedia data in WiMAX systems and, most importantly, identify research areas in which promising improvement opportunities exist. We start by portraying how both market and technical conditions have encouraged the adoption of WiMAX, and then, by building upon a fundamentals introduction, we focus on issues related to capacity and frame assembly. We also identify relevant aspects related to scheduling and mapping between user applications and WiMAX services. We close the chapter with a discussion on quality of service in wireless systems and visit the mathematical background of opportunistic scheduling for WiMAX.
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