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文章基本信息

  • 标题:Modified Queue-Based Exponential Rule Scheduler for Improved QOS in OFDMA Systems
  • 本地全文:下载
  • 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
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