Topology aggregation and decoding algorithms based on a minimum spanning tree in asymmetric multi-domain optical networks
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In an optical network, the connections are generally bidirectional, but their QoS parameters in each direction may be not the same. In this paper, we propose an enhanced algorithm called Node Label Order First (NLOF), which can maintain asymmetrical information and guarantee availability of the compressed topology. Besides, a decoding algorithm to restore the compressed topology named Average Proportional point (AP) is also proposed, which not only retains the space complexity of the aggregation process but also improves the accuracy of the restored information. Simulation results show that combing NLOF with AP can balance the contradiction between space complexity of the aggregation algorithm and routing accuracy.
KeywordsMulti-domain Topology aggregation Asymmetric Direction Decoding
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- 2.Ji Y., Li H., Lu Y.: The Principle and Application of ASON. Press of Beijing University of Post and Teleconmunication, Beijing (2005)Google Scholar
- 4.Lee, W.C.: Minimum equivalent subspanner algorithms for topology aggregation. In: ATM networks. 1999 2nd International Conference on ATM. pp. 351–359, Feb 1999Google Scholar
- 8.Lee, W.C.: Spanning tree method for link state aggregation in large communication networks. In: Proceedings of the Fourteenth Annual Joint Conference of the IEEE Computer and Communication Societies. pp. 297–302, April 1995Google Scholar