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WDM光网络动态虚拟拓扑重构算法
引用本文:彭利民,刘浩,王伟兵.WDM光网络动态虚拟拓扑重构算法[J].计算机应用,2009,29(1):21-24.
作者姓名:彭利民  刘浩  王伟兵
作者单位:华南理工大学 计算机科学与工程学院
摘    要:针对波分复用光纤网络上业务流量动态改变的问题,为了使光纤网络能支持更多的业务连接,需要对虚拟拓扑进行重构。基于链路最大负载和包平均跳步距离,利用混合线性规划公式对重构问题进行描述,在此基础上提出一个自适应拓扑重构算法,达到提高网络吞吐量的目的。仿真结果表明,该算法可以有效地改善网络性能。

关 键 词:动态流量    虚拟拓扑重构    混合整数线性规划(MILP)    光纤网络    波分复用
收稿时间:2008-07-24
修稿时间:2008-09-12

Dynamic virtual topology reconfiguration algorithms for WDM optical networks
PENG Li-min,LIU Hao,WANG Wei-bing.Dynamic virtual topology reconfiguration algorithms for WDM optical networks[J].journal of Computer Applications,2009,29(1):21-24.
Authors:PENG Li-min  LIU Hao  WANG Wei-bing
Affiliation:1. Department of Computer Application;Guangzhou Sport University;Guangzhou Guangdong 510500;China;2. School of Computer Science and Engineering;South China University of Technology;Guangzhou Guangdong 510641;China
Abstract:Aiming at the problem of the traffic changing dynamically in a Wavelength Division Multiplexing (WDM) optical network, the virtual topology designed for an old traffic set needs to be reconfigured to route more connections. Based on maximum link load and the average packet hop distance for increasing network throughput, an adaptive topology reconfiguration algorithm, which determined the change in the virtual topology with a corresponding change in the demand set, was proposed by formulating the reconfigura...
Keywords:dynamic traffic  virtual topology reconfiguration  mixed-integer linear program  optical networks  wavelength division multiplexing
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