3D Fragmentation Metric and RCSA Scheme for Space Division Multiplexing Elastic Optical Networks

IF 3.6 3区计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS IEEE Access Pub Date : 2020-09-22 DOI:10.1109/ACCESS.2020.3025812

Juan Zhang, B. Bao, Q. Yao, Danping Ren, Jinhua Hu, Jijun Zhao

{"title":"3D Fragmentation Metric and RCSA Scheme for Space Division Multiplexing Elastic Optical Networks","authors":"Juan Zhang, B. Bao, Q. Yao, Danping Ren, Jinhua Hu, Jijun Zhao","doi":"10.1109/ACCESS.2020.3025812","DOIUrl":null,"url":null,"abstract":"The space division multiplexing elastic optical networks (SDM-EONs) based on multi-core fiber (MCF) are an effective solution to improve transmission capacity. In SDM-EONs, spectrum resources take on three-dimensional (3D) properties (i.e., frequency, time, and space), which brings new spatial constraints to network resource allocation. Meanwhile, the spectrum fragmentation in the network also presents same characteristics with the setup and release of dynamic lightpath. To improve the success rate of transmission and the utilization of network resources, it is necessary to evaluate network fragmentation effectively from the three dimension. Therefore, this paper focuses on a new fragmentation measurement for SDM-EONs. Firstly, the 3D fragmentation metric is carried out considering the frequency-time-space domain. Then, routing, core, and spectrum allocation (RCSA) scheme is proposed to allocate the spectrum resource with minimal future fragmentation and core resource with maximal free resource reservation. Simulation results show the proposed scheme better in blocking probability, spectrum utilization, and fragmentation rate.","PeriodicalId":13079,"journal":{"name":"IEEE Access","volume":"8 1","pages":"201595-201605"},"PeriodicalIF":3.6000,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/ACCESS.2020.3025812","citationCount":"17","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Access","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.1109/ACCESS.2020.3025812","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"COMPUTER SCIENCE, INFORMATION SYSTEMS","Score":null,"Total":0}

引用次数: 17

Abstract

The space division multiplexing elastic optical networks (SDM-EONs) based on multi-core fiber (MCF) are an effective solution to improve transmission capacity. In SDM-EONs, spectrum resources take on three-dimensional (3D) properties (i.e., frequency, time, and space), which brings new spatial constraints to network resource allocation. Meanwhile, the spectrum fragmentation in the network also presents same characteristics with the setup and release of dynamic lightpath. To improve the success rate of transmission and the utilization of network resources, it is necessary to evaluate network fragmentation effectively from the three dimension. Therefore, this paper focuses on a new fragmentation measurement for SDM-EONs. Firstly, the 3D fragmentation metric is carried out considering the frequency-time-space domain. Then, routing, core, and spectrum allocation (RCSA) scheme is proposed to allocate the spectrum resource with minimal future fragmentation and core resource with maximal free resource reservation. Simulation results show the proposed scheme better in blocking probability, spectrum utilization, and fragmentation rate.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

空间复用弹性光网络的三维碎片度量和RCSA方案

基于多芯光纤(MCF)的空分复用弹性光网络(sdm - eon)是提高传输容量的有效解决方案。在sdm - eon中，频谱资源具有三维(3D)属性(即频率、时间和空间)，这给网络资源分配带来了新的空间约束。同时，随着动态光路的建立和释放，网络中的光谱碎片化也呈现出相同的特征。为了提高传输成功率和网络资源利用率，有必要从三维角度对网络碎片化进行有效的评估。因此，本文重点研究了一种新的SDM-EONs破碎度测量方法。首先，从频-时-空的角度进行三维碎片度量;然后，提出了路由、核心和频谱分配(RCSA)方案，以最小的未来碎片分配频谱资源和最大的空闲资源保留核心资源。仿真结果表明，该方案具有较好的阻塞率、频谱利用率和分片率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

IEEE Access COMPUTER SCIENCE, INFORMATION SYSTEMSENGIN-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

9.80

自引率

7.70%

发文量

6673

审稿时长

6 weeks

期刊介绍： IEEE Access® is a multidisciplinary, open access (OA), applications-oriented, all-electronic archival journal that continuously presents the results of original research or development across all of IEEE''s fields of interest. IEEE Access will publish articles that are of high interest to readers, original, technically correct, and clearly presented. Supported by author publication charges (APC), its hallmarks are a rapid peer review and publication process with open access to all readers. Unlike IEEE''s traditional Transactions or Journals, reviews are "binary", in that reviewers will either Accept or Reject an article in the form it is submitted in order to achieve rapid turnaround. Especially encouraged are submissions on: Multidisciplinary topics, or applications-oriented articles and negative results that do not fit within the scope of IEEE''s traditional journals. Practical articles discussing new experiments or measurement techniques, interesting solutions to engineering. Development of new or improved fabrication or manufacturing techniques. Reviews or survey articles of new or evolving fields oriented to assist others in understanding the new area.