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A Computationally-Efficient of Fair Queueing without Maintaining the System Virtual Time  

이준엽 (광운대학교 전자공학부 네트워크 시스템 연구실)
이승형 (광운대학교 전자공학부 네트워크 시스템 연구실)
Abstract
Packet scheduling is an essential function to guarantee a quality of service by differentiating services in the Internet. Scheduling algorithms that have been suggested so far can be devided into Round-Robin methods and Fair Queueing methods Round-Robin methods have the advantage of high-speed processing through simple implementations, while Fair Queueing methods offer accurate services. Fair queueing algorithms, however, have problems of computational overheads and implementation complexity as their schedulers manage the states of every flow. This paper suggests a new method in which each flow performs the calculation in a distributed way to decide the service order. Our algorithm significantly reduces the scheduler's computational overheads while providing the same level of accuracy with the previous Fair Queueing algorithms.
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