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Photonic Network Communications

29.02.2024 | Original Paper

A precise partition strategy for proactive fragmentation avoidance in SDM-EONs with crosstalk awareness

verfasst von: Xuhong Li, Junling Yuan, Zhimin Xu, Qikun Zhang, Ruijie Zhu

Erschienen in: Photonic Network Communications

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Abstract

Nowadays, space-division-multiplexing elastic optical networks (SDM-EONs) have become a promising technology for the next generation of backbone networks. Routing, spectrum and core assignment (RSCA) problem is one of the key issues in SDM-EONs. However, spectrum fragmentation and inter-core crosstalk are two main disadvantages which would impact performance of RSCA algorithm. In this paper, we investigate proactive fragmentation avoidance method in SDM-EONs with crosstalk awareness. We first propose a precise partition strategy to preassign spectrum resources to different types of services and introduce a crosstalk awareness method to effectively and conveniently measure crosstalk suffered by frequency slices; then we design a precise-partition-based spectrum assignment algorithm to allocate spectrum resources to connection requests under both crosstalk-ignoring and -considering cases. Simulation results show that the proposed algorithm outperforms the existing proactive fragmentation avoidance algorithms in terms of blocking probability.

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Metadaten
Titel
A precise partition strategy for proactive fragmentation avoidance in SDM-EONs with crosstalk awareness
verfasst von
Xuhong Li
Junling Yuan
Zhimin Xu
Qikun Zhang
Ruijie Zhu
Publikationsdatum
29.02.2024
Verlag
Springer US
Erschienen in
Photonic Network Communications
Print ISSN: 1387-974X
Elektronische ISSN: 1572-8188
DOI
https://doi.org/10.1007/s11107-024-01013-8

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