Abstract
Spectrum fragment is one of the most important issues in elastic optical networks (EONs). To solve the shortcomings of traditional defragmentation mechanisms, a policy-based comparison-triggered defragmentation mechanism (P-CTD) is proposed. The improved mechanism will analyze the arrived traffic request and current spectrum resource situation firstly, then compare and judge whether to trigger spectrum defragmentation according to preset policy. Theoretical analysis and numerical simulation results show that compared with the traditional mechanisms, the proposed P-CTD mechanism can reduce the bandwidth blocking probability (BBP) as 8.73% and improve the resource utilization ratio as 15.26%, respectively.
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Luo, L., Liu, X., Zhang, J., Yu, C., Shen, J. (2020). Policy-Based Comparison-Triggered Defragmentation Mechanism for Elastic Optical Networks. In: Peng, Y., Dong, X. (eds) Proceedings of 2018 International Conference on Optoelectronics and Measurement. Lecture Notes in Electrical Engineering, vol 567. Springer, Singapore. https://doi.org/10.1007/978-981-13-8595-7_4
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DOI: https://doi.org/10.1007/978-981-13-8595-7_4
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