杜理想1,
陈勇2,
胡会霞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网络
杜理想：男，1995年生，硕士，研究方向为光网络路由算法
陈勇：男，1963年生，教授，研究方向为光通信与传感检测
胡会霞：女，1997年生，硕士，研究方向为光网络调度算法
通讯作者:刘焕淋 liuhl2@sina.com
中图分类号:TN929.11计量
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被引次数:0
出版历程
收稿日期:2019-07-15
修回日期:2019-11-07
网络出版日期:2020-03-17
刊出日期:2020-07-23
Crosstalk-aware Spectrum Converters Sparse Configuration and Resource Allocation for Space Division Multiplexing Elastic Optical Networks
Huanlin LIU1,,,Lixiang DU1,
Yong CHEN2,
Huixia HU1
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 Science Foundation Project of Chongqing Science and Technology Commission (2019 jcyj-msxmX0613)
摘要
摘要:针对大容量多芯光纤空分复用弹性光网络(SDM-EON)中芯间串扰导致业务传输质量下降和阻塞率上升的问题，该文提出了节点稀疏配置频谱转换器降低芯间串扰的路由纤芯频谱分配方法。该方法根据网络中节点中介中心性稀疏配置频谱转换器。在业务路由阶段，设计综合考虑光路负载和节点频谱转换能力的光路选择的权重方法；为了降低串扰，在纤芯频谱分配阶段，设计纤芯分组和频谱分区分配方法；最后，针对串扰较大的业务，采用频谱转换以降低业务串扰和改善带宽阻塞率。仿真结果表明，所提算法能有效地提高频谱利用率，降低因芯间串扰导致的带宽阻塞率。
关键词:空分复用弹性光网络/
芯间串扰/
频谱转换器/
纤芯路由频谱分配/
带宽阻塞率
Abstract:In order to solve the problem of inter-core crosstalk in Space Division Multiplexing Elastic Optical Network (SDM-EON), which leads to the decline of service transmission quality and the increase of blocking probability, a routing, fiber core and spectrum allocation method for reducing inter-core crosstalk through sparse configuration spectrum converter at nodes is proposed in the paper. This method configures the spectrum converter according to the node’s centrality sparseness in SDM-EON. During service routing, a weighting method for optical path selection considering both optical path load and node spectrum conversion capability is designed.to reduce crosstalk. In the core spectrum allocation stage, a method of fiber core grouping and spectrum partition allocation is utilized. Finally, spectrum conversion is used to reduce traffic crosstalk and improve bandwidth blocking probability for services with high crosstalk. The simulation results show that the proposed algorithm can effectively improve the spectrum utilization and reduce the bandwidth blocking probability caused by fibers inter-core crosstalk.
Key words:Space Division Multiplexing Elastic Optical Network (SDM-EON)/
Inter-core crosstalk/
Spectrum converter/
Fiber core and routing spectrum allocation/
Bandwidth blocking probability
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