刘焕淋^1,,,
杜理想¹,
陈勇²,
王展鹏¹
1.重庆邮电大学通信与信息工程学院 重庆 400065
2.重庆邮电大学工业物联网与网络化控制教育部重点实验室 重庆 400065
基金项目:国家自然科学基金(51977021)；重庆市自然科学基金面上项目(2019jcyj-msxmX0613)

详细信息

作者简介:刘焕淋：女，1970年生，教授，研究方向为光通信技术与未来网络
杜理想：男，1995年生，硕士，研究方向为光网络生存性路由算法
陈勇：男，1963年生，教授，研究方向为光通信技术、传感检测与自动化技术
王展鹏：男，1996年生，硕士，研究方向为光网络生存性调度算法

通讯作者:刘焕淋　liuhl2@sina.com

中图分类号:TN929.11

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被引次数:0

出版历程

收稿日期:2019-07-25
修回日期:2020-02-19
网络出版日期:2020-03-12
刊出日期:2020-07-23

Disaster Prediction-based Survivable Virtual Optical Network Mapping for Multi-Area Faults

Huanlin LIU^1,,,
Lixiang DU¹,
Yong CHEN²,
Zhanpeng WANG¹
1. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2. Key Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, 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 (2019 jcyj-msxmX0613)


摘要
摘要:生存性虚拟光网络映射是提高光网络应对灾难故障的重要技术保障措施。为解决灾难性多区域故障导致弹性光网络的带宽容量损失问题，该文提出基于灾难预测故障模型的蚁群优化虚拟光网络映射 (DFM-ACO-VNM)算法。在该算法中，设计基于光节点资源和相邻链路的全局潜在故障概率的光节点排序映射准则，并设计启发式信息公式实现多区域故障下最小带宽容量损失的虚拟节点和虚拟链路协同映射。仿真结果表明，该文所提算法在多区域故障时能降低带宽容量损失，减少带宽阻塞率和提高频谱利用率。
关键词:弹性光网络/
多区域故障/
生存性映射/
蚁群优化/
带宽容量损失
Abstract:Survivable virtual optical network mapping is an important technology to improve the optical network response to disaster failures. In order to solve the problem of bandwidth capacity loss caused by multi-area faults resulted from disasters in Elastic Optical Networks (EONs), a multi-area disaster fault model of survivable virtual network based on risk assessment is established, and a Disaster Fault Model based Ant Colony Optimization for Virtual Network Mapping (DFM-ACO-VNM) algorithm is proposed in the paper. An optical node ranking mapping criterion based on node resources and global potential failure probability of adjacent links in EONs is designed. Then, a heuristic information formula is designed to realize cooperative mapping of virtual nodes and virtual links with minimum bandwidth capacity loss under multi-area faults. The simulation results show that the proposed algorithm can decrease the bandwidth capacity loss, reduce the bandwidth blocking probability and improve the spectrum utilization in multi-area faults.
Key words:Elastic Optical Network (EONs)/
Multi-area fault/
Survivability mapping/
Ant Colony Optimization (ACO)/
Bandwidth capacity loss



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