Quality of Service Support for Multimedia Applications in Third Generation Mobile Networks Using Adaptive Scheduling

Authors:
Paul Richardson;Larry Sieh;Aura Ganz
Affiliations:
Department of Electrical and Computer Engineering, University of Michigan (Dearborn);Vetronics Technology Center, U.S. Army Tank-Automotive RD&E Center;Department of Electrical and Computer Engineering, University of Massachusetts (Amherst)
Venue:
Real-Time Systems
Year:
2001

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Abstract

Third generation mobile network will support services such as video-telephony, video-conferencing and other multimedia applications. Therefore, this network must provide quality of service (QoS) to these applications consistent with that offered by fixed networks. However, this is a very challenging task due to the instability of the wireless channel and the diverse quality of service requirements dictated by different multimedia applications. In this paper we introduce a resource allocation algorithm for the wireless downlink that takes into account the wireless channel characteristics, the QoS required by the applications as well as a pricing value function. Our solution is based on an adaptive scheduling algorithm originally developed for scheduling real-time processes during transient surges. This algorithm tends to maximize the wireless network operator profit while satisfying the customers’ quality requests.