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

doi:10.12263/DZXB.20200916

电子学报 ›› 2022, Vol. 50 ›› Issue (1): 135-141.DOI: 10.12263/DZXB.20200916

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

刘焕淋¹, 温濛¹, 陈勇², 任杰¹, 胡俊岭¹

^1.重庆邮电大学通信与信息工程学院，重庆 400065
^2.重庆邮电大学自动化学院，重庆 400065

收稿日期:2020-08-21 修回日期:2021-05-26 出版日期:2022-01-25
- 作者简介:
- 刘焕淋女，1970年生，重庆人，博士.重庆邮电大学教授、硕士生导师.主要研究方向为光通信技术和网络. E-mail:liuhl@cqupt.edu.cn
  温濛女，1995年生，四川冕宁人.重庆邮电大学硕士研究生.主要研究方向为弹性光网络的资源优化分配. E-mail:2227673840@qq.com
- 基金资助:
- 国家自然科学基金 (NSFC51977021); 重庆市自然科学基金面上项目 (2019jcyj-msxmX0613)

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

LIU Huan-lin¹, WEN Meng¹, CHEN Yong², REN Jie¹, HU Jun-ling¹

^1.School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
^2.School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received:2020-08-21 Revised:2021-05-26 Online:2022-01-25 Published:2022-01-25
- Supported by:
- National Natural Science Foundation of China (NSFC51977021); General Program of Natural Science Foundation of Chongqing Municipality, China (2019jcyj-msxmX0613)

摘要/Abstract

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.

关键词: 空分复用弹性光网络, 业务调度, 频谱集中度, 频谱离散转换, 带宽阻塞率

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.

Key words: space division multiplexing elastic optical network, service scheduling, spectrum aggregation, spectrum discrete conversion, bandwidth blocking probability

中图分类号:

TN929.11

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(1): 135-141.

Huan-lin LIU, Meng WEN, Yong CHEN, et al. Service Scheduling Based on Spectrum Aggregation and Spectrum Discrete Conversion of Optical Node[J]. Acta Electronica Sinica, 2022, 50(1): 135-141.

图/表 6

图1 DASLF光节点结构

图2 LRSC数目对带宽阻塞率影响 (ρ=0.8)

图3 LRSC增加转换度的带宽阻塞率改善

图4 FDL配置数量对带宽阻塞率影响

图5 FDL数量对平均延迟影响

图6 不同节点和算法的带宽阻塞率

参考文献 16

1	CAIT, WUY X, FARMANH, et al. Blockchain-empowered big data sharing for Internet of things[J]. International Journal of Web Services Research, 2021, 18(1): 58-69.
2	付亚伟. 大数据互联网时代光纤通信技术的发展与挑战[J]. 重庆邮电大学学报, 2021, 33(1): 52-58.
	FUY W. Development and challenge of optical fiber communication technology in the era of big data internet[J]. Journal of Chongqing University of Posts and Telecommunications. 2021, 33(1): 52-58. (in Chinese)
3	IYERS. On routing, modulation format, space and spectrum allocation with protection in space division multiplexing-based elastic optical networks[J]. Journal of Information and Telecommunication, 2020, 4(1): 105-117.
4	鲍宁海, 苏国庆, 陈静波. 恢复时间敏感的光网络混合通路保护算法[J]. 重庆邮电大学学报, 2017, 29(3): 313-319.
	BAON H, SUG Q, CHENJ B. Recovery time aware hybrid path protection algorithm in optical networks[J]. Journal of Chongqing University of Posts and Telecommunications, 2017, 29(3): 313-319. (in Chinese)
5	MORENO-MUROF J, RUMIPAMBA-ZAMBRANOR, PAVÓN-MARINOP, et al. Evaluation of core-continuity-constrained ROADMs for flex-grid/MCF optical networks[J]. Journal of Optical Communications and Networking, 2017, 9(11): 1041-1050.
6	YAGHUBI-NAMAADM, RAHBARA G, ALIZADEHB. Adaptive modulation and flexible resource allocation in space-division-multiplexed elastic optical networks[J]. Journal of Optical Communications and Networking, 2018, 10(3): 240-251.
7	ZHANGJ, ZHUB, YANGX M, et al. A novel multi-granularity two-layer SDM ROADM architecture[J]. Optical Communications, 2021,47: 126473.
8	GHAZVINIH, MINAS, RAHBARG, et al. Load balancing, multipath routing and adaptive modulation with traffic grooming in elastic optical networks[J]. Computer Networks, 2020, 169: 1070811:13.
9	DINGS, YINS, ZHANGZ, et al. Evaluation of the flexibility of switching node architectures for spaced division multiplexed elastic optical network[C]//Optical Fiber Communications Conference and Exhibition (OFC). San Diego, CA, USA: IEEE, 2020: 1-3.
10	LIUH L, SANGL Y, CHENY, et al. Space-frequency joint contention scheduling algorithm based on AoD in SDM-EONs[J]. Optical Fiber Technology, 2019, 47(1): 93-101.
11	黄梅根, 庞瑞琴, 刘亮, 等. 基于SDN的数据中心网络中考虑等待时间的流调度策略研究[J]. 重庆邮电大学学报, 2021, 33(2): 202-208.
	HUANGM G, PANGR Q, LIUL, et al. Research on flow priority scheduling algorithm considering wait time in data center network based on SDN[J]. Journal of Chongqing University of Posts and Telecommunications. 2021, 33(2): 202-208. (in Chinese)
12	刘焕淋, 方菲,陈勇, 等. 基于无色无向无冲突可重构光分插复用器节点的全光IP组播能效调度[J]. 电子与信息学报, 2019, 41(11): 2571-2577.
	LIUH L, FANGF, CHENY, et al. Energy-efficient scheduling algorithm for all optical ip multicast based on CDC-F ROADM node[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2571-2577. (in Chinese)
13	YANGS, STOLN. Design of delay-line buffers for asynchronous optical packet switched networks[C]//Australasian Telecommunication Networks and Applications Conference. Southbank, VIC, Australia: IEEE, 2015: 206-211.
14	KABACISKIW, MICHALSKIM, ABDULSAHIBM. Wide-sense nonblocking elastic optical switch[J]. Optical Switching and Networking, 2017, 25: 71-79.
15	LIUH, LIY, PENGH, et al. Multicast contention resolution based on time-frequency joint scheduling in elastic optical switching networks[J]. Optical Communications, 2017, 383: 441-445.
16	GUOD W, DUB L, YANGY, et al. Layered OXC with intermode switching bridge for optical SDM-WDM networks[J]. Journal of Lightwave Technology, 2019, 37(16): 3918-3924.

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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

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

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