计算机工程Issue(3)：120-122,3.DOI:10.3969/j.issn.1000-3428.2014.03.024
基于QoS效用函数的比例公平调度算法
Proportional Fair Scheduling Algorithm Based on QoS Utility Function
摘要
Abstract
The proportional fair scheduling algorithm in multimedia service schedule does not meet the various Quality of Service(QoS) needs. Especially, when the business instantaneous QoS parameter values are close to the business accepted maximum QoS thresholds, the variation tendency of the scheduling priority of the business is not obvious, and the business can not be timely scheduled and the quality of multimedia business communication is reduced. According to this instance, this paper draws the QoS factor parameters into the algorithm of PF scheduling priority judgments expression. It enhances the impact of scheduling with the demand for QoS parameters. It proposes a proportional fair scheduling algorithm based on the QoS utility function. Experimental results show that the scheduling algorithm can quickly increase scheduling opportunities closed to the multimedia business of the service quality thresholds. Therefore, the delay of the VoIP business is reduced by 44%and the justice of the VoIP business is raised by 3%.关键词
服务质量/调度算法/效用函数/比例公平/时延/吞吐量Key words
Quality of Service(QoS)/scheduling algorithm/utility function/proportional fair/delay/throughput分类
信息技术与安全科学引用本文复制引用
叶进,刘建涛,林婧,李陶深..基于QoS效用函数的比例公平调度算法[J].计算机工程,2014,(3):120-122,3.基金项目
国家自然科学基金资助项目(61163060,61103204)；广西自然科学基金资助重点项目(2011GXSFD01802)。 （61163060,61103204）
