文章基本信息

标题：Modified Queue-Based Exponential Rule Scheduler for Improved QOS in OFDMA Systems
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作者：C.Kalyana Chakravarthy ; P.V.G.D. Prasad Reddy
期刊名称：International Journal of UbiComp
印刷版ISSN：0976-2213
电子版ISSN：0975-8992
出版年度：2010
卷号：1
期号：2
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In our paper, we propose a modification of queue based exponential scheduler that dynamically improves the channel gain of far away users (by increasing their credits) at the cost of a small reduction of the same for the nearby users(by reducing the credits), since users nearby anyway have a fairly high gain. Results clearly suggest that the proposed method is able to maintain a constant average throughput(always greater than that of the P.F scheduling) while it far outperforms the P.F and Queue- Based Exponential Rule Scheduler in the delay characteristics. The throughput fairness index was interestingly observed to improve with increasing number of users while it worsens for the other two schemes.
关键词：scheduling; quality of service; latency