频谱灵活光网络的故障概率与光纤链路负载均衡联合优化方法

doi:10.11959/j.issn.1000-436x.2019178

通信学报 ›› 2019, Vol. 40 ›› Issue (9): 136-144.doi: 10.11959/j.issn.1000-436x.2019178

频谱灵活光网络的故障概率与光纤链路负载均衡联合优化方法

陈伯文¹,符小东²,雷雨¹

¹ 苏州大学电子信息学院，江苏苏州 215006
² 中天科技研究院，江苏南通 226000

修回日期:2019-05-14 出版日期:2019-09-25 发布日期:2019-09-28
作者简介:陈伯文（1983- ），男，广西桂平人，博士，苏州大学副教授、硕士生导师，主要研究方向为数据中心与光网络融合、光网络生存性、光网络虚拟化、软件定义光网络等。|符小东（1978- ），男，江苏东县人，中天科技研究院工程师，主要研究方向为光通信与网络。|雷雨（1995- ），女，河南南阳人，苏州大学硕士生，主要研究方向为空分复用频谱灵活光网络资源分配。
基金资助:
国家自然科学基金资助项目(61701332);江苏省自然科学基金资助项目(BK20160326);江苏省高校自然科学研究基金资助项目(16KJB510041)

Joint optimization method of failure probability and fiber-link load balancing in flexible bandwidth optical network

Bowen CHEN¹,Xiaodong FU²,Yu LEI¹

¹ School of Electronic and Information Engineering,Soochow University,Suzhou 215006,China
² Zhongtian Broadband Technology,Nantong 226000,China

Revised:2019-05-14 Online:2019-09-25 Published:2019-09-28
Supported by:
The National Natural Science Foundation of China(61701332);The Natural Science Foundation of Jiangsu Province(BK20160326);University Science Research Project of Jiangsu Province(16KJB510041)

摘要/Abstract

摘要：

在频谱灵活光网络中，为了解决网络故障概率与光纤链路负载均衡问题，建立了故障概率与光纤链路负载均衡联合计算与评估模型，提出了故障概率与光纤链路负载均衡联合优化方法。仿真结果表明，与传统方法相比，当不考虑保护带宽时，所提故障概率与光纤链路负载均衡联合优化方法降低了69.8%网络阻塞率，减少了45.3%频谱资源占用率，减少了 41.9%平均故障概率，实现了频谱灵活光网络的故障概率与光纤链路负载均衡联合优化方法。

关键词: 频谱灵活光网络, 故障概率, 光纤链路负载均衡, 联合优化

Abstract:

In order to gain insight into the relationship between the failure probability and the spectrum efficiency,both failure probability (FP) and load balancing (LB) were attempted to minimize in flexible bandwidth optical networks.An optimized FP-LB algorithm was developed to reduce failure probability and to improve the spectrum efficiency,and a traditional algorithm was further introduced for comparison in flexible bandwidth optical networks.Simulation results show that the optimized FP-LB algorithm reduces 69.8% blocking probability,45.3% spectrum occupancy rate,and 41.9% average failure probability compared to the traditional algorithm.Obviously,the optimized FP-LB algorithm achieves the joint optimization of both failure probability and load balancing.

Key words: flexible bandwidth optical network, failure probability, fiber-link load balancing, joint optimization

中图分类号:

TN913.7

陈伯文,符小东,雷雨. 频谱灵活光网络的故障概率与光纤链路负载均衡联合优化方法[J]. 通信学报, 2019, 40(9): 136-144.

Bowen CHEN,Xiaodong FU,Yu LEI. Joint optimization method of failure probability and fiber-link load balancing in flexible bandwidth optical network[J]. Journal on Communications, 2019, 40(9): 136-144.

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频谱灵活光网络的故障概率与光纤链路负载均衡联合优化方法

Joint optimization method of failure probability and fiber-link load balancing in flexible bandwidth optical network

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