Programmable filterless network architecture based on optical white boxes

Furdek, Marija; Muhammad, Ajmal; Zervas, Georgios; Alloune, Nabih; Tremblay, Christine; Wosinska, Lena

doi:10.1109/ondm.2016.7494076

Cited by 11 publications

(11 citation statements)

References 18 publications

(25 reference statements)

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“…Constraint (11) enforces wavelength continuity and identifies transit nodes, useful to model the broadcast propagation jointly with constraint (12), in case of fiber tree crossing.…”

Section: B Ilp Approaches For Protectionmentioning

confidence: 99%

Strategies for Dedicated Path Protection in Filterless Optical Networks

Ibrahimi

Ayoub

Albanese

et al. 2021

2021 IEEE Global Communications Conference (GLOBECOM)

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Enabling Dedicated Path Protection (DPP) in Filterless Optical Networks (FONs) poses specific design challenges, as FONs require dividing the network topology in non-overlapping fiber trees, and lightpaths cannot cross from one tree to another unless additional devices are installed. In this study, we consider the possibility to deploy three type of devices, namely Inter-Tree Transceivers (ITTs), Wavelength Blockers (WBs) and Colored Passive Filters (CPFs) to achieve DPP in FON, and we compare the three resulting DPP strategies, called P-ITT, P-WB and P-WBC. More specifically, we formulate three Integer Linear Programming (ILP) models for DPP in FON with the objective to minimize additional device cost and minimize total wavelength consumption. Numerical results over two realistic topologies show that P-WBC achieves cost savings up to 33% in comparison to P-WB and up to 97% in comparison to P-ITT. However, even if it is the costliest approach, P-ITT ensures up to 7% savings in wavelength consumption and up to 23% savings in resource overbuild compared to P-WB and P-WBC, making it a possible candidate in spectrum-scarce deployments.

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“…Constraint (11) enforces wavelength continuity and identifies transit nodes, useful to model the broadcast propagation jointly with constraint (12), in case of fiber tree crossing.…”

Section: B Ilp Approaches For Protectionmentioning

confidence: 99%

Strategies for Dedicated Path Protection in Filterless Optical Networks

Ibrahimi

Ayoub

Albanese

et al. 2021

2021 IEEE Global Communications Conference (GLOBECOM)

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“…Passive filterless networks transparently pass all wavelengths, even those which only contain data that is not useful for downstream nodes, resulting in bandwidth wastage. Programmable and reconfigurable filterless networks were proposed to reduce the drop-and-waste problem and in turn increase throughput [20]. However the increased complexity of the hardware at each node is impractical for data centre networking, where the node count is high and the network connectivity demands change frequently.…”

Section: Prior Work On Optical Multicastmentioning

confidence: 99%

Reconfigurable optical star network architecture for multicast media production data centres

Funnell

Butler²,

Zervas

2020

Optical Switching and Networking

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“…Programmable filterless networks (PFNs) are a trade-off solution that combines the advantages of the programmable optical nodes and filterless transmission while offsetting their drawbacks [5]. Fig.…”

Section: Programmable Filterless Networkmentioning

confidence: 99%