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一种基于VirtualClock的自适应成比例带宽分配算法
引用本文:丁剑,陈伍军,刘旸,黄皓.一种基于VirtualClock的自适应成比例带宽分配算法[J].计算机工程与应用,2004,40(11):121-124,158.
作者姓名:丁剑  陈伍军  刘旸  黄皓
作者单位:1. 南京大学软件新技术国家重点实验室,南京,210093;南京大学计算机科学与技术系,南京,210093
2. 江苏南大苏富特软件股份有限公司,南京,210008
基金项目:国家863高科技发展计划资助项目“智能入侵检测与攻击预警系统”(编号:2001AA142010)
摘    要:该文提出了一种基于VirtualClock算法的自适应成比例带宽分配算法(ProportionalAdaptiveBandwidthAllo-cationAlgorithmBasedonVirtualClock,PABVC)。该算法将所有的业务流分为绑定流和非绑定流,并根据不同流的配置加以调度,从而实现了绑定带宽同时自适应成比例分配带宽的目的。由于算法的各个部分相关性较弱,所以在保留算法框架和核心部分算法的基础上,可以灵活地加以组合,实现不同的算法变种。最后,该文分析了PABVC算法的优缺点,并且提出了今后的研究重点。

关 键 词:虚拟时钟算法  自适应成比例分配  服务质量  分组调度  确保带宽服务
文章编号:1002-8331-(2004)11-0121-04

A Proportional Adaptive Bandwidth Allocation Algorithm Based on VirtualClock
Ding Jian , Chen Wujun , Liu Yang Huang Hao.A Proportional Adaptive Bandwidth Allocation Algorithm Based on VirtualClock[J].Computer Engineering and Applications,2004,40(11):121-124,158.
Authors:Ding Jian  Chen Wujun  Liu Yang Huang Hao
Affiliation:Ding Jian 1,2 Chen Wujun 1,2 Liu Yang 3 Huang Hao 1,21
Abstract:A prop or tional adaptive bandwidth allocation algorithm based on VirtualClock(PABVC)is presented in this paper.In PABVC,all of the flows are divided into bounded fl ows or non-bounded flows ,and are scheduled based on their configurations.So PABVC can bound the bandwidth of the bounded flows and is a proportional adapt ive bandwidth allocation algorithm.Because the relationship between the differe nt parts of the algorithm is weak,people can easily assemble the different pa rts but reserving the algorithmic framework and kernel algorithm to realize man y different versions of PABVC.Finally,the advantages,shortcomings and resear ch focus in future of PABVC are presented in this paper.
Keywords:VirtualClock  Proportional adaptive allocation  QoS  Packet scheduling  Guaranteed service
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