区分服务网络中主动队列管理算法  

Active Queue Management Algorithms in DiffServ Networks

作　　者：刘威[1] 程文青[1] 何建华[1] 乐春晖[1] CHOU Chun-Tung 杨宗凯[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074 [2]School of Computer Science and Engineering The University of New South Wales,Sydney NSW 2052,Australia

出　　处：《软件学报》2005年第6期1120-1130,共11页Journal of Software

基　　金：国家自然科学基金;国家教育部骨干教师基金;澳大利亚研究院基金~~

摘　　要：现有区分服务网络的保证转发服务可提供稳定的带宽保证,但缺乏保证时延和分组丢失性能的有效方案.基于对RIO队列的稳态性能分析,提出两种自适应调整控制策略的主动队列管理算法(ARIO-D和ARIO-L).仿真结果表明,这两种算法在保持RIO算法带宽保证能力的同时,还可以提供稳定的和可区分的时延和分组丢失性能.采用ARIO-D和ARIO-L的保证转发服务可以为多媒体流量提供多种服务质量的定量保证.Current assured forwarding (AF) service in differentiated services (DiffServ) networks can provide stable guarantees in throughput, but is lacking of efficient schemes in ensuring queuing delay and loss ratio. By analyzing the steady state operating point of RIO, this paper proposes two active queue management algorithms with adaptive control policy, namely ARIO-D and ARIO-L. These two algorithms can provide differentiated performance in, respectively, queuing delay and loss ratio, in addition to throughput guarantee. By deploying ARIO-D and ARIO-L, AF service can provide quantitative guarantees for multimedia traffic with multiple QoS metrics.

关 键 词：区分服务 主动队列管理 定量保证转发 服务质量 RIO 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]