基于光路负载均衡和邻域匹配的串扰感知资源分配方法
Crosstalk Aware Resource Allocation Method Based on Lightpath Load Balancing and Neighborhood Matching
- 电子学报 2022年50卷第11期 页码：2746-2753
- 作者机构：
重庆邮电大学通信与信息工程学院，重庆 400065
- 作者简介：
[ "刘焕淋 女, 1970年2月出生于重庆市.现为重庆邮电大学教授、博士生导师.主要研究方向为光通信技术和网络.E‑mail: liuhl@cqupt.edu.cn" ]
- 基金信息：国家自然科学基金(51977021);重庆市自然科学基金面上项目(2019jcyj-msxmX0613;2020jcyj-msxmX0682);重庆市教育委员会科学技术研究项目(KJQN201900635)
DOI：10.12263/DZXB.20211049
中图分类号： TN929.11收稿：2021-08-04，
修回：2021-11-28，
纸质出版：2022-11-25
- 稿件说明：
移动端阅览
刘焕淋,胡俊岭,任杰等.基于光路负载均衡和邻域匹配的串扰感知资源分配方法[J].电子学报,2022,50(11):2746-2753.
LIU Huan-lin,HU Jun-ling,REN Jie,et al.Crosstalk Aware Resource Allocation Method Based on Lightpath Load Balancing and Neighborhood Matching[J].ACTA ELECTRONICA SINICA,2022,50(11):2746-2753.
刘焕淋,胡俊岭,任杰等.基于光路负载均衡和邻域匹配的串扰感知资源分配方法[J].电子学报,2022,50(11):2746-2753. DOI： 10.12263/DZXB.20211049.
LIU Huan-lin,HU Jun-ling,REN Jie,et al.Crosstalk Aware Resource Allocation Method Based on Lightpath Load Balancing and Neighborhood Matching[J].ACTA ELECTRONICA SINICA,2022,50(11):2746-2753. DOI： 10.12263/DZXB.20211049.
摘要
针对空分复用弹性光网络（Space Division Multiplexing-Elastic Optical Networks
SDM-EONs）的芯间串扰和频谱碎片化问题，该文提出一种考虑业务持续时间、光路邻域资源匹配度及芯间串扰的路由频谱纤芯分配算法.在业务的路由选择阶段，该文设计基于光路负载均衡和频谱碎片减少的路由策略；在纤芯选择阶段，设计兼顾纤芯负载及减少纤芯间串扰的纤芯选择方法；在时-频资源块分配阶段，设计考虑时-频资源碎片变化小和邻域匹配度变化小的资源分配方法.仿真结果表明，该文所提算法可以降低网络带宽阻塞率和提高频谱资源的使用效率.
Abstract
To solve the problems of inter-core crosstalk and spectrum fragmentation in space division multiplexing-elastic optical networks(SDM-EONs)
a routing spectrum core allocation with holding time
lightpath’s neighborhood matching degree and inter-core crosstalk(TMD-XT-RSCA) is proposed. In the service routing stage
a routing strategy is designed to balance the lightpath’s load and reduce resource fragment. In the core selection
a core selection method is designed to balance the fiber core’s load and decrease inter-core crosstalk. In the time-spectrum block allocation stage
a resource allocation method through considering small change of time-spectrum fragmentation and small change of neighborhood matching degree is designed. The simulation results show that the proposed TMD-XT-RSCA algorithm can reduce the bandwidth blocking probability and improve the spectrum utilization.
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Keywords
references
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