Survivability Coordinated Mapping Based on Node Centrality and Spectrum Dispersion Awareness for Virtual Optical Networks

Huanlin LIU; Huixia HU; Yong CHEN; Meng WEN; Zhanpeng WANG

doi:10.11999/JEIT190543

Volume 42 Issue 9

Sep. 2020

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Article Navigation > Journal of Electronics & Information Technology > 2020 > 42(9): 2166-2172

Huanlin LIU, Huixia HU, Yong CHEN, Meng WEN, Zhanpeng WANG. Survivability Coordinated Mapping Based on Node Centrality and Spectrum Dispersion Awareness for Virtual Optical Networks[J]. Journal of Electronics & Information Technology, 2020, 42(9): 2166-2172. doi: 10.11999/JEIT190543

Citation:

Huanlin LIU, Huixia HU, Yong CHEN, Meng WEN, Zhanpeng WANG. Survivability Coordinated Mapping Based on Node Centrality and Spectrum Dispersion Awareness for Virtual Optical Networks[J]. Journal of Electronics & Information Technology, 2020, 42(9): 2166-2172. doi: 10.11999/JEIT190543

Citation:

Huanlin LIU, Huixia HU, Yong CHEN, Meng WEN, Zhanpeng WANG. Survivability Coordinated Mapping Based on Node Centrality and Spectrum Dispersion Awareness for Virtual Optical Networks[J]. Journal of Electronics & Information Technology, 2020, 42(9): 2166-2172. doi: 10.11999/JEIT190543

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Survivability Coordinated Mapping Based on Node Centrality and Spectrum Dispersion Awareness for Virtual Optical Networks

doi: 10.11999/JEIT190543

1.
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Funds: The National Natural Science Foundation of China(51977021), The Natural Science Foundation Project of Chongqing Science and Technology Commission (CSTC2019 jcyj-msxmX0613)

Received Date: 2019-07-18
Rev Recd Date: 2020-07-08

Available Online: 2020-07-22

Publish Date: 2020-09-27

Abstract

Abstract

The mapping strategy of virtual network has important effect on the resource availability and survivability of the Elastic Optical Network (EON). A survivable virtual optical network Coordinated Mapping based on the Distance and Spectrum Dispersion Awareness (CM-DSDA) between nodes is proposed in the paper. A physical node weighted sorting strategy is studied, which not only considers the number of physical node computing resources, but also considers the location centrality of the physical nodes in the EON topology. And a method of spectrum dispersion is designed to evaluate the link’s spectrum fragmentation. During the virtual link’s survivability mapping, the working and protection optical paths adjacent the position of the mapped physical nodes with the minimum number of spectrum usage and the lowest frequency spectrum dispersion are selected to coordinated mapping the virtual optical networks. Simulation results show that the CM-DSDA can effectively increase the EON’s spectrum utilization and reduce bandwidth blocking probability.
- Virtual optical network,
- Survivable coordinated mapping,
- Node centrality,
- Spectrum dispersion,
- Spectrum usage ratio

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References(19)

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