Service Scheduling Based on Spectrum Aggregation and Spectrum Discrete Conversion of Optical Node

LIU Huan-lin; WEN Meng; CHEN Yong; REN Jie; HU Jun-ling

doi:10.12263/DZXB.20200916

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Service Scheduling Based on Spectrum Aggregation and Spectrum Discrete Conversion of Optical Node

PAPERS | 更新时间：2025-12-08

- Service Scheduling Based on Spectrum Aggregation and Spectrum Discrete Conversion of Optical Node
- ACTA ELECTRONICA SINICA Vol. 50, Issue 1, Pages: 135-141(2022)
- 作者机构：
  
  1.重庆邮电大学通信与信息工程学院，重庆 400065
  2.重庆邮电大学自动化学院，重庆 400065
- 作者简介：
- 基金信息：
- DOI：10.12263/DZXB.20200916
  CLC： TN929.11;
- Received：21 August 2020，
  
  Revised：2021-05-26，
  
  Published：25 January 2022
- 稿件说明：
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刘焕淋,温濛,陈勇等.基于全光节点频谱集中度和频谱离散转换的业务调度方法[J].电子学报,2022,50(01):135-141.

LIU Huan-lin,WEN Meng,CHEN Yong,et al.Service Scheduling Based on Spectrum Aggregation and Spectrum Discrete Conversion of Optical Node[J].ACTA ELECTRONICA SINICA,2022,50(01):135-141.
刘焕淋,温濛,陈勇等.基于全光节点频谱集中度和频谱离散转换的业务调度方法[J].电子学报,2022,50(01):135-141. DOI： 10.12263/DZXB.20200916.

LIU Huan-lin,WEN Meng,CHEN Yong,et al.Service Scheduling Based on Spectrum Aggregation and Spectrum Discrete Conversion of Optical Node[J].ACTA ELECTRONICA SINICA,2022,50(01):135-141. DOI： 10.12263/DZXB.20200916.

摘要

为了减少多芯光纤空分复用弹性光网络中光节点业务调度的失败概率，该文基于共享有限波长转换器和光纤延迟线的动态功能光交换节点结构，提出基于频谱集中度和频谱离散转换的业务调度方法.该方法能将业务调度到频谱碎片少和频谱集中度高的输出端口和纤芯；对调度失败的业务，采用基于频谱离散转换度和时域缓存联合的冲突解决方法，减少业务在光交换节点的平均延迟并降低业务调度失败概率.仿真结果表明，本文所提的算法能在降低全光交换节点业务的带宽阻塞率的同时，减少频谱转换器的使用数目和业务的平均时延.

Abstract

In order to reduce the probability of service scheduling failure in multi-core fiber space division multiplexing elastic optical network

based on the dynamic functional architecture optical switching node with limited wavelength converter and fiber line delay(DASLF)

the service scheduling based on spectrum aggregation and spectrum discrete conversion(SS-SASDC) is proposed for all-optical node in the paper. The proposed SS-SASDC can schedule the service to fiber port and fiber core with less spectrum fragmentation and high spectrum aggregation. For the conflict service

SS-SASDC algorithm adopts the conflict resolution method based on spectrum discrete conversion and time domain buffer to reduce the average delay and decrease the probability of traffic scheduling failure in optical switching node. Simulation results show that the proposed SS-SASDC algorithm can not only reduce service's bandwidth blocking probability

but also decrease the used number of spectrum converters

and reduce the cache delay of services.

关键词

Keywords

references

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