电信科学 ›› 2020, Vol. 36 ›› Issue (4): 107-114.doi: 10.11959/j.issn.1000-0801.2020116

• 研究与开发 • 上一篇    下一篇

基于光电转换装置成本感知的RWA算法

胡道允,杨振泰,陆钱春,齐进   

  1. 中兴通讯股份有限公司,江苏 南京 210012
  • 修回日期:2020-03-11 出版日期:2020-04-20 发布日期:2020-04-24
  • 作者简介:胡道允(1990- ),男,中兴通讯股份有限公司SDN算法工程师,主要研究方向为网络管控系统、智能网络算法、智能运维等|杨振泰(1993- ),男,中兴通讯股份有限公司SDN研发工程师,主要研究方向为智能网络算法|陆钱春(1986- ),女,中兴通讯股份有限公司SDN算法工程师,主要研究方向为智能网络优化、智能运维等|齐进(1971- ),男,博士,中兴通讯股份有限公司管控产品研发总工程师,主要研究方向为网络控制与管理、大数据分析、智能运维等

RWA algorithm based on cost of photoelectric conversion device

Daoyun HU,Zhentai YANG,Qianchun LU,Jin QI   

  1. ZTE Corporation,Nanjing 210012,China
  • Revised:2020-03-11 Online:2020-04-20 Published:2020-04-24

摘要:

近年来,运营商通过在ROADM设备上部署光电转换装置实现了光传输网络中业务的细粒度调度,从而提升频谱资源的利用率。但是光电转换装置价格昂贵,导致了网络部署成本的增加。针对光传输网络中业务和光模块的部署问题进行了 ILP 建模,并证明其为 NP-hard 问题。提出了两种基于光电转换装置成本感知的路由和波长分配算法:OEO-RWA算法和SA-RWA算法,并通过仿真证明两种算法既能够保证业务的细粒度调度,又能够减少光电转换装置数量,降低网络部署成本。

关键词: 光传输网络, ROADM, 光电转换, 路由和波长分配, 成本

Abstract:

Over the past decade,carrier operator implement fine-grained traffic scheduling in optical transport network(OTN) by deploying optical-electric conversion(OEO) devices on ROADM,which can improve the spectrum utilization.However,OEO device is very expensive,which will increase the CAPEX and OPEX of carrier operator.A problem about traffic scheduling and the deployment of OEO devices in OTN was proposed.Then,the ILP model of this problem was built and it was proved NP-hard.Additionally,two novel algorithms named OEO-RWA and SA-RWA were proposed.At last,these algorithms were demonstrated can not only ensure flexibility of traffic scheduling,but also can reduce the number of OEO device through simulation.

Key words: OTN, ROADM, optical-electric conversion, RWA, cost

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