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基于服务质量的组合服务路由算法

QoS-guaranteed Routing Algorithm for Composed Service
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摘要 提出了一种满足QoS约束的组合服务路由算法,分别对线性和并行2种服务组合情况设计了路由算法LDT和LDT-P。由组合代理节点搜索功能组件并生成最小延迟树,综合考虑节点的处理能力、链路带宽,采用层次图法来决定组合服务的路由。实验结果表明与其他算法相比,LDT和LDT-P具有较高的服务组合成功率和较短的路径长度。 This paper proposes a routing algorithm for composed service. Routing tragedies as LDT and LDT-P algorithms are designed to fit the line and parallel structure composition respectively. Composition agent is responsible for searching components and generating a least delay tree. The processing ability of the nodes and the bandwith of links are considered comprehensively while selecting a path for composed service. Simulation shows that LDT and LDT-P algorithms have the feature of higher composition success rate and shorter path length, compared with the currently routing algorithms.
作者 张艳梅 余镇危 曹怀虎 金鑫
机构地区 中央财经大学信息学院 中国矿业大学机电与信息工程学院
出处 《计算机工程》 CAS CSCD 北大核心 2008年第1期105-107,共3页 Computer Engineering
基金 国家博士点基金资助项目(20030290003)
关键词 服务组合 路由 服务质量 负载均衡 覆盖网络 service composition routing QoS load balancing overlay network
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献6

  • 1Gu Xiaohui,Nahrstedt Klara,Chang Rong N,et al.QoS-assured Service Composition in Managed Service Overlay Networks[C]//Proc.of the 23rd Int'l Conf.on Distributed Computing Systems.Providence,RI,USA:[s.n.],2003:194-203.
  • 2Gu Xiaohui.Spidernet:a Quality-aware Service Composition Middleware[D].Champaign,Illinois:University of Illinois at Urbana-Champaign,2004.
  • 3Raman B.An Achitechture for Availability and Performance in Wide Area-service Composition[D].Berkeley,CA:University of California Berkeley,2002.
  • 4Raman B,Katz R H.Load Balancing and Stability Issues in Algorithms for Service Composition[C]//Proceedings of IEEE INFOCOM'2003.San Francisco:[s.n.],2003:1477-1487.
  • 5QoS-guaranteed Path Selection Algorithm for Service[Z].(2006-06-07).http://www-net.cs.yale.edu/iwqos06/program.html.
  • 6廖渊,唐磊,李明树.一种基于QoS的服务构件组合方法[J].计算机学报,2005,28(4):627-634. 被引量：29

二级参考文献20

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共引文献28

计算机工程
2008年 第1期

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