An efficient hybrid protection scheme with shared/dedicated backup paths on elastic optical networks
| Autor: | Boko Aka, Roger Marcelin Faye, Michel Babri, Nogbou Georges Anoh, Claude Lishou, Ahmed Dooguy Kora |
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| Rok vydání: | 2017 |
| Předmět: |
Scheme (programming language)
Hybrid protection Computer Networks and Communications Computer science Distributed computing Contiguity media_common.quotation_subject Computation 02 engineering and technology Blocking (statistics) 01 natural sciences 010309 optics 020210 optoelectronics & photonics Resource (project management) Backup Modulation format 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Quality (business) computer.programming_language media_common Elastic Optical Networks lcsh:T58.5-58.64 lcsh:Information technology Minimum resource utilization business.industry Hardware and Architecture Backup shared resources Efficient energy cost business computer Efficient energy use Computer network |
| Zdroj: | Digital Communications and Networks, Vol 3, Iss 1, Pp 11-18 (2017) |
| ISSN: | 2352-8648 |
| Popis: | Fast recovery and minimum utilization of resources are the two main criteria for determining the protection scheme quality. We address the problem of providing a hybrid protection approach on elastic optical networks under contiguity and continuity of available spectrum constraints. Two main hypotheses are used in this paper for backup paths computation. In the first case, it is assumed that backup paths resources are dedicated. In the second case, the assumption is that backup paths resources are available shared resources. The objective of the study is to minimize spectrum utilization to reduce blocking probability on a network. For this purpose, an efficient survivable Hybrid Protection Lightpath (HybPL) algorithm is proposed for providing shared or dedicated backup path protection based on the efficient energy calculation and resource availability. Traditional First-Fit and Best-Fit schemes are employed to search and assign the available spectrum resources. The simulation results show that HybPL presents better performance in terms of blocking probability, compared with the Minimum Resources Utilization Dedicated Protection (MRU-DP) algorithm which offers better performance than the Dedicated Protection (DP) algorithm. |
| Databáze: | OpenAIRE |
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