节点与链路协作的动态虚拟光网络映射算法

doi:10.3969/j.issn.1001-2400.2018.04.012

Abstract

Abstract:

A dynamic virtual optical network mapping algorithm based on nodes and links cooperation is proposed to make multiple dynamic virtual optical networks which are logically isolated to efficiently share the underlying elastic optical network resources. The computational capacity of the node, the spectrum resource and the relationship between the nodes to be mapped and the nodes mapped are considered during node mapping in this algorithm. When virtual nodes are mapped into the physical nodes, link mapping is considered. The virtual nodes around a virtual node are mapped into the nodes around a physical node. The method uses the cooperation between nodes and links to avoid long hop physical routes during link mapping. Simulation results show that the performance of the blocking ratio and link utilization of the algorithm are significantly improved. This algorithm can save the network resource effectively.

Key words: virtual optical network, elastic optical network, virtual optical network mapping, cooperation

YANG Fan;QIN Shuai;XU Zhanqi;MA Tao;DING Zhe. Dynamic virtual optical network mapping algorithm with cooperation between nodes and links[J].Journal of Xidian University, 2018, 45(4): 63-68.

References

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Dynamic virtual optical network mapping algorithm with cooperation between nodes and links

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