Spectrum Continuity and Contiguity based Dedicated Protection for Flexible Optical Networks

Xavier, A. V. S.; Almeida, Raul C.; Martins-Filho, Joaquim F.; Chaves, Daniel A. R.; Bastos-Filho, Carmelo J. A.

doi:10.1590/2179-10742017v16i2857

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…The backup resources may be dedicated or shared by other light paths. In [27], authors proposed a dedicated path protection strategy based on spectrum continuity and contiguity constraints in order to reduce BP. The integral linear programming (ILP) based two-path protection strategies were proposed in [28].…”

Section: Survivabilitymentioning

confidence: 99%

Elastic Optical Network: A Promising Solution for Future Communication Networks Considering Differentiated CoS

Dixit

Batham

Narwaria

2021

Algorithms for Intelligent Systems

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Section: Survivabilitymentioning

confidence: 99%

Elastic Optical Network: A Promising Solution for Future Communication Networks Considering Differentiated CoS

Dixit

Batham

Narwaria

2021

Algorithms for Intelligent Systems

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“…Also, spectrum contiguity and spectrum continuity are the two major constraints in managing spectrum of the EONs. 13 For ensuring spectrum contiguity, the end-to-content path of a request must be assigned adjacent frequency slots in the optical spectrum. Spectrum continuity defines that the same frequency slots must be allocated to an end-to-content path in all links of the route.…”

Section: Elastic Optical Networkmentioning

confidence: 99%

Preservation of shared backup path ink‐node content based elastic optical datacenter networks

Gupta

Aggarwal

Ahuja

2021

Trans Emerging Tel Tech

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Efficient path selection and content availability in the optical datacenter networks are essential for business continuity. To measure quantitatively the connectivity of content and give protection to diverse type of contents, the idea of k-node content connectivity is becoming popular. However, the assignment of dedicated spectrum for each end-to-end content path consumes too many resources. In order to enhance the resource efficiency, the spectrum can be shared between end-to-content paths of various requests. The spectrum sharing minimizes the backup spectrum requirement and has been a topic of research.In this study, an innovative model, namely, end-to-end content connectivity based quasi-bipartite graphs (E-QBG) for the possible path prediction and maximum matching by Hungarian path prediction (MM-HPP) are implemented for the spectrum efficiency and the disaster resilient datacenter networks. The objective is to minimize the entire backup spectrum resource and operations path. The quasi-bipartite graph is used for the end-to-end content backup route evaluation including spectrum sharing on various links, while the Hungarian algorithm is utilized for accurate maximum matching prediction between various end-to-end route sets. We introduce the concept of maximum dissortativity path based on the weight factor. The proposed E-QBG and MM-HPP reduces spectrum consumption which guarantees survivability against multi-failure and natural disasters. This method leads to an approach for more effective utilization of the resources for end-to-end content connected elastic optical datacenter networks as compared with the existing techniques.

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“…The research on protection in Elastic Optical Networks (EONs) has become very popular, as well. The authors of [7] propose a new dedicated path protection mechanism for link-failure survivability in EONs. Further, they used modified version of the Dijkstra's algorithm for calculation of the link-disjoint routes.…”

Section: Related Workmentioning

confidence: 99%

Analysis of Latency, Blocking Probability and Network Utilization for a Specific Routing and Spectrum Assignment Algorithm, in Elastic Optical Networks

Kocevska¹,

Latkoski²,

Porjazoski³

et al. 2020

ACTA POLYTECH HUNG

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Spectrum Continuity and Contiguity based Dedicated Protection for Flexible Optical Networks

Cited by 5 publications

References 23 publications

Elastic Optical Network: A Promising Solution for Future Communication Networks Considering Differentiated CoS

Elastic Optical Network: A Promising Solution for Future Communication Networks Considering Differentiated CoS

Preservation of shared backup path ink‐node content based elastic optical datacenter networks

Analysis of Latency, Blocking Probability and Network Utilization for a Specific Routing and Spectrum Assignment Algorithm, in Elastic Optical Networks

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