Survivable Embedding of Virtual Optical Network Based on Lightpath Reliability and Spectrum Integration Factor-Aware

doi:10.12263/DZXB.20200242

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ACTA ELECTRONICA SINICA ›› 2021, Vol. 49 ›› Issue (4) : 744-749. DOI: 10.12263/DZXB.20200242

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Survivable Embedding of Virtual Optical Network Based on Lightpath Reliability and Spectrum Integration Factor-Aware

LIU Huan-lin¹, HU Hui-xia¹, MA Jing¹, CHEN Yong², WANG Zhan-peng¹

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Abstract

Aiming at the multi-link failure scenario, a survivable embedding based on lightpath reliability and spectrum integration factor-aware (SE-LRSIF) algorithm is proposed for virtual optical networks in space-division multiplexing elastic optical networks. During virtual node embedding, a weight evaluation criterion is designed to comprehensively consider the attributes of physical nodes. During virtual link embedding, a working lightpath selection strategy that jointly considers spectrum resources and reliability is designed, and a working lightpath spectrum partition allocation method based on spectrum integration factor-aware is designed to make network spectrum resources more integrated. Moreover, a protection lightpath selection strategy is designed to increase the protection bandwidth sharing. The simulation results show that the proposed SE-LRSIF algorithm can significantly improve the acceptance ratio of virtual optical network requests and reduce the bandwidth blocking probability.

Key words

elastic optical network / virtual optical network / reliability / spectrum integration factor / bandwidth blocking probability

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LIU Huan-lin, HU Hui-xia, MA Jing, CHEN Yong, WANG Zhan-peng. Survivable Embedding of Virtual Optical Network Based on Lightpath Reliability and Spectrum Integration Factor-Aware[J]. Acta Electronica Sinica, 2021, 49(4): 744-749. https://doi.org/10.12263/DZXB.20200242

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Funding

National Natural Science Foundation of China (No.NSFC51977021, No.61275077); General Program of Natural Science Foundation of Chongqing Municipality, China (No.cstc2019jcyj-msxmX0613, No.2020jcyj-msxmX0682)