- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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An optimization model for quadratic flow thinning – a traffic protection mechanism for FSO networks
摘要： Flow thinning (FT) is an active traffic protection mechanism destined for communication networks with variable capacity of links, for example wireless networks. In FT, end-to-end traffic demands are equipped with dedicated logical tunnels (for example MPLS tunnels) whose maximal capacities are subject to thinning in order to follow the fluctuations of the currently available link capacities. It follows that for each demand the instantaneous traffic realized between its end nodes must accommodate to the current total capacity available on its dedicated tunnels. In the paper we develop an optimization model for network dimensioning for an applicative modification of FT, the so called Quadratic Flow Thinning (QFT), and present a solution algorithm based on the path generation method. We derive relevant pricing problems for basic variants of the QFT mechanism (and for its special case Affine Flow Thinning, AFT), and present a numerical study that illustrates efficiency of the optimization algorithm, as well as compares the network cost for different variants of QFT and AFT.
关键词： Free space optics,Linear and mixed-integer programming,Resilient networks,Multicommodity flows,Quadratic and affine routing,Variable link capacity,Path generation
更新于2025-09-23 15:22:29
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[IEEE 2018 20th International Conference on Transparent Optical Networks (ICTON) - Bucharest (2018.7.1-2018.7.5)] 2018 20th International Conference on Transparent Optical Networks (ICTON) - Resilient Optical Networks <sup>1</sup>
摘要： Networking resilience is the ability to provide and maintain an acceptable level of service, albeit potentially degraded from nominal, in the face of faults and challenges to normal, including adversarial attacks. This paper explores the concept of resilient optical networks and scopes the important issues to be addressed in a sensible architecture. The solution includes monitoring and probing to determine the states of potentially unreliable network substrates, assessment of resilient network operating regimes, isolation of compromised assets, deployment of mitigation measures that may require communication over unreliable substrates and suggestions for resilient architecture design and improvement. The architecture construct evolves around a robust control plane that uses cognitive techniques to assess network states and automatically reacts to the on-set of impairments and attacks involving all the network layers from the Physical Layer to the Application Layer.
关键词： resilient networks,optical network architecture,network reconstitution,network security
更新于2025-09-19 17:15:36