Spectrum Defragmentation Algorithm based on Fragmentation Index in Intelligent Elastic Optical Network

WANG Feng; LIU Minyu; YU Xiaosong; ZHAO Yongli

doi:10.13756/j.gtxyj.2024.240045

您当前的位置：

首页 >

文章列表页 >

Spectrum Defragmentation Algorithm based on Fragmentation Index in Intelligent Elastic Optical Network

更新时间：2024-10-08

- Spectrum Defragmentation Algorithm based on Fragmentation Index in Intelligent Elastic Optical Network
- Study on Optical Communications Issue 5, Pages: 24004501-24004506(2024)
- 作者机构：
  
  1.国网宁夏电力有限公司　电力科学研究院，银川　750004
  2.北京邮电大学　信息光子学与光通信国家重点实验室，北京　100876
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2024.240045
  CLC： TN929
- Published：10 October 2024，
  
  Received：28 February 2024，
  
  Revised：08 April 2024，
- 稿件说明：
移动端阅览
王峰，刘旻钰，郁小松，等. 智能弹性光网络中基于碎片化指数的频谱重构算法研究[J].光通信研究，2024(5)：240045.

Wang F, Liu M Y, Yu X S，et al. Spectrum Defragmentation Algorithm based on Fragmentation Index in Intelligent Elastic Optical Network[J]. Study on Optical Communications，2024(5)：240045.
王峰，刘旻钰，郁小松，等. 智能弹性光网络中基于碎片化指数的频谱重构算法研究[J].光通信研究，2024(5)：240045. DOI： 10.13756/j.gtxyj.2024.240045.

Wang F, Liu M Y, Yu X S，et al. Spectrum Defragmentation Algorithm based on Fragmentation Index in Intelligent Elastic Optical Network[J]. Study on Optical Communications，2024(5)：240045. DOI： 10.13756/j.gtxyj.2024.240045.

摘要

【目的】

智能弹性光网络作为一种新兴的光通信技术，为日益增长的电力通信需求提供了更高的带宽和灵活性。然而，由于不同通信请求的频谱需求大小和分布不均匀，可能会导致频谱资源在网络中出现碎片化的情况，并导致频谱资源的浪费和网络性能的降低。

【方法】

文章介绍了一种碎片化指数的评估方法，并以此为参考判断是否要对正在运行的业务进行频谱重构的操作。

【结果】

仿真实验结果表明，文章所提算法与传统算法相比，带宽阻塞率能够降低5%至30%不等，且业务量越大，带宽阻塞率降低越明显。

【结论】

文章所提算法综合考虑了单根光纤上频谱碎片所占比例和链路上业务的平均频隙，以及各时隙在每个纤芯的占用权重，从多维角度对网络的频隙占用情况做出评估，为后续资源分配提供了一个高效的优化方案。

Abstract

【Objective】

As a new optical communication technology

intelligent elastic optical network provides higher bandwidth and flexibility to meet the increasing demand of power communication. However

due to the uneven spectrum demand size and distribution of different communication requests

it may lead to fragmentation of spectrum resources in the network. These fragmented spectrum resources may result in the waste of spectrum resources and the degradation of network performance.

【Methods】

This paper introduces an evaluation method of fragmentation index

and takes it as a reference to judge whether to carry out spectrum defragmentation operations for running services.

【Results】

The simulation results show that compared with the traditional algorithm

the bandwidth blocking rate can be reduced by 5% to 30%. It is also shown that the the bandwidth blocking rate reduction is more obvious when the traffic volume is larger.

【Conclusion】

The algorithm proposed in this paper comprehensively considers the proportion of spectrum fragments on a single fiber

the average frequency gap of services on the link

and the occupation weight of each time slot in each fiber core. This paper also evaluates the frequency gap occupation of the network from a multidimensional perspective

providing an efficient optimization scheme for resource allocation.

关键词

智能弹性光网络资源分配频谱碎片整理

Keywords

intelligent elastic optical networkresource allocationspectrum fragmentation

references

许志敏, 韩禄. 空分复用弹性光网络介绍与分析[J]. 电子世界, 2020(19): 64-67.

Xu Z M, Han L. Introduction and Analysis of Space Division Multiplexing Elastic Optical Network[J]. Electronics World, 2020(19): 64-67.

Su J, Zhang J, Wang J, et al. Dynamic Impairment-aware RMCSA in Multi-core Fiber-based Elastic Optical Networks[J]. Optics Communications, 2022, 518: 128361.

Faezeh Y, Ghaffarpour R A, Amin G. Fragmentation and Time Aware Algorithms in Spectrum and Spatial Assignment for Space Division Multiplexed Elastic Optical Networks (SDM-EON)[J]. Computer Networks, 2020, 174: 107232.

蔡一峰. 基于多芯光纤的空分复用弹性光网络频谱分配算法研究[D]. 南京: 南京邮电大学, 2022.

Cai Y F. Research on Spectrum Allocation Algorithm of Space-division Multiplexing Elastic Optical Network based on Multicore Fibers[D]. Nanjing, China: Nanjing University of Posts and Telecommunications, 2022.

陈鑫. 空分复用弹性光网络中碎片和串扰感知的路由频谱分配方法及其应用研究[D]. 南京: 南京邮电大学, 2023.

Chen X. Research on Routing Spectrum Allocation and Its Application with Fragment and Crosstalk Awareness in Space Division Multiplexed Elastic Optical Networks[D]. Nanjing, China: Nanjing University of Posts and Telecommunications, 2023.

鲁双贵, 孙严智, 罗海林, 等. 弹性光网络中频谱碎片整理分析[J]. 长江信息通信, 2021, 34(10): 166-170.

Lu S G, Sun Y Z, Luo H L, et al. Spectrum Defragmentation Analysis in Elastic Optical Networks [J]. Changjiang Information & Communications, 2021, 34(10): 166-170.

符小东, 王耀攀, 沈一春, 等. 数据中心弹性光网络专用路径保护方法研究[J]. 光通信研究, 2022(6): 16-21.

Fu X D, Wang Y P, Shen Y C, et al. The Research on Dedicated-path Protection Methods in Elastic Optical Networks with Data Centers[J]. Study on Optical Communications, 2022(6): 16-21.

蓝求旺. 基于空分复用的弹性光网络中碎片及串扰感知资源分配研究[D]. 南京: 南京邮电大学, 2022.

Lan Q W. Research on Fragment and Crosstalk Awared Resource Allocation in Space Division Multiplexing Elastic Optical Network(SDM-EON)[D]. Nanjing, China: Nanjing University of Posts and Telecommunications, 2022.

Views

下载量

CSCD

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on Pre-coding and Power Allocation in RSMA-based Wireless Optical Communication

Resources Allocation Algorithm for Multi-cell D2D Based on Noncooperative Game Theory

PDCCH Resource Allocation Algorithm based on Reward and Punishment Mechanism

QoS-based 5G Slice Resource Allocation

Narrowband Uplink Shared Channel Design and Performance Test

Related Author

ZHANG Kun

ZHANG Peng

LIANG Yan

LU Yan-bo

LING Ya

ZHANG Yong

ZENG Yan-hui

ZHANG De-min

Related Institution

Key Laboratory of Computing Power Network and Information Security, Ministry of Education, Shandong Computer Science Center (National Supercomputer Center in Jinan), Qilu University of Technology (Shandong Academy of Sciences)

Shandong Provincial Key Laboratory of Computer Networks, Shandong Fundamental Research Center for Computer Science

Electric Power Control Center, State Grid Shandong Electric Power Company

Research Centre for Application of New Communication Technologies,Chongqing University of Posts and Telecommunications

Chongqing Information Technology Designing CO.,LTD.

Postal code：430205
Technical support is provided by Beijing Founder electronics co., LTD 鄂ICP备2022010197 鄂公网安备 42011202002092号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：103142 Visits Today：66

⁰