Optical signal-to-noise ratio restoration algorithm applied to optical network resilience to node failures

Freitas, Rodrigo C. de; Martins-Filho, Joaquim F.; Chaves, Daniel A. R.; Silva, Rodrigo C. L.; Bastos-Filho, Carmelo J. A.; Pereira, Helder A.; Leitao, Edluce dos S.

doi:10.1109/latincom.2011.6107408

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…in which, qty (recovered) indicates the number of disrupted calls that achieves success on the restoration process and qty (af f ected) represents the number of calls that uses the link with failure. For the simulations of a single link failure, we used the following methodology proposed by Freitas et al [20], [21]. This methodology has five steps: (1) initially, we analyze the network occupation in order to identify the point at which the topology stabilizes regarding the average usage of wavelengths per link, i.e.…”

Section: Setup Simulationmentioning

confidence: 99%

On the Performance Analysis of Different Link to Path Restoration Schemes for All-Optical Networks

Freitas¹,

Aragão²,

Costa³

et al. 2012

Anais De XXX Simpósio Brasileiro De Telecomunicações

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In this paper we compare the performance of three different restoration schemes for all-optical networks (link, subpath and path) upon a single link failure considering physical layer impairments. In addition, we propose two strategies for link or subpath restoration. Although the strategies based on subpath restoration present a better performance when compared to the strategies based on link restoration, the path restoration scheme far outperforms these other schemes. From the results, there is an indication that the path restoration is the best reactive scheme for all-optical network without wavelength conversion.

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Section: Setup Simulationmentioning

confidence: 99%