Opportunistic fair scheduling for the downlink of IEEE 802.16 wireless metropolitan area networks

Authors:
Mehri Mehrjoo;Mehrdad Dianati;Xuemin (Sherman) Shen;Kshirasagar Naik
Affiliations:
University of Waterloo, Waterloo, Ontario, Canada;University of Waterloo, Waterloo, Ontario, Canada;University of Waterloo, Waterloo, Ontario, Canada;University of Waterloo, Waterloo, Ontario, Canada
Venue:
QShine '06 Proceedings of the 3rd international conference on Quality of service in heterogeneous wired/wireless networks
Year:
2006

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Abstract

In this paper, we propose a novel scheduling scheme for the downlink of IEEE 802.16 networks. A scheduler at the Base Station (BS) decides the order of downlink bursts to be transmitted. The decision is made based on the quality of the channel and the history of transmissions of each Subscriber Station (SS). The scheduler takes advantage of temporal channel fluctuations to increase the BS's throughput and maintain fairness by balancing the long term average throughput of SSs. Simulation results are given to demonstrate the performance of the proposed scheduling scheme.