基于灵活频谱的新型超高速光网络架构和关键技术研究

项目名称： 基于灵活频谱的新型超高速光网络架构和关键技术研究

项目编号： No.61201260

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 张国颖

作者单位： 工业和信息化部电信传输研究所

项目金额： 25万元

中文摘要： 互联网流量继续呈指数增长趋势，以及云计算、视频、数据中心互联等新兴业务对光网络灵活性和多业务适应能力等提出了新的要求，迫切需要研究未来支持高频谱效率、灵活带宽分配、多业务速率适配、绿色节能以及可扩展性强的新型光网络架构。基于灵活频谱的超高速光网络架构将光网络提供业务的灵活性从传统的时域拓展到时频双域，大大减小了光交换器件实现的难度，其已成为光分组交换技术成熟以前，非常具有应用前景的全光网技术之一。本课题以解决基于频谱灵活光网络的架构性和基础性问题为目标，在充分分析未来5-10年光网络业务特征的基础上，从多个维度研究基于灵活频谱的光网络架构的功能和灵活性要求，提出满足未来多种业务发展需求的新型灵活频谱光网络体系架构，以及支撑多粒度业务适配、交换、疏导和灵活调度的关键技术，探索全光业务汇聚疏导、频谱灵活分配和调整、智能管理控制和生存性等创新技术。

中文关键词： 灵活频谱；光网络体系架构；汇聚疏导；路由和频谱分配；智能控制

英文摘要： In recent years, the Internet traffic has been growing expotentially. The new emerging services, such as cloud computing, video on demand, data center interconnection etc.,put new requirements of suporting multi-granularity and flexibility to optical networks. These new trends are driving a new optical network architecture with high spectrum efficiency, flexible bandwidth usage, multi-data-rate adaptation, high energy efficiency and scalablility. Spectrum elastic optical network architecture has extended the network flexibility from the time domain to time andoptical spectrum domain, which has greately reduced the complexity of optical components. It has been considered one of the most promising candidate of next generation optical network architecture, before the maturity of optical packet switching technologies. This project aims to solve the fundimental and architectural problems of spectrum elastic optical network, and propose inovative technologies and solutions to these problems. This project will analyze the future optical network service features, study the novel spectrum elastic optical network architecture from different flexibility dimentions, and propose key technologies and inovative schemes to support the novel network architecture, including optical traffic grooming approach, flexible spectrum

英文关键词： Spectrum elastic；optical network architecture；traffic grooming；routing and spectrum allocation；intelligent control