灵活栅格光网络中可虚拟化光收发器资源提供机制及性能研究

项目名称： 灵活栅格光网络中可虚拟化光收发器资源提供机制及性能研究

项目编号： No.61771134

项目类型： 面上项目

立项/批准年度： 2018

项目学科： 无线电电子学、电信技术

项目作者： 朱敏

作者单位： 东南大学

项目金额： 16万元

中文摘要： 为了服务于未来高性能互联网应用，光网络虚拟化技术是近年来研究的一个热点，该技术可以为每一种应用类型提供专属的虚拟光网络平台。可虚拟化光收发器是创建虚拟光网络平台必不可少的关键技术。已有的研究侧重于带宽可变或可切片光收发器的物理实现，虽然一定程度上发挥了收发器资源的灵活性，但没有涉及到虚拟化功能，资源没有得到高效的利用。本项目首先提出一种可虚拟化光收发器的资源提供机制，有效提高收发器资源利用率，大大降低了收发器资源规模和成本，具有良好的可扩展性。然后以这种机制为基础，从实现原理、调度机制、虚拟化方法和去碎片化机制等方面进行系统深入的研究，并利用光交换实验平台，对关键技术进行验证。本项目以灵活栅格光网络为基础，用全新而实际的视角审视光网络中端到端多维资源提供问题，极大地拓展了这个问题的内涵和外延，具有很强的理论价值，同时也将有力推动下一代光网络技术在新兴互联网应用领域的发展。

中文关键词： 灵活栅格光网络；可虚拟化光收发器；光网络虚拟化；端到端光路配置；资源提供机制

英文摘要： In order to serve the future high-performance Internet applications, optical network virtualization has become a new and hot research area during the past several years. This technology is proposed to offer each application type a dedicated virtual optical network (VON). Virtualizeable bandwidth variable transceiver (V-BVT) is an essential enabler to create multiple VONs. Previous research works mainly focus more on physical realization technologies to perform bandwidth-variability or sliceability of an optical transceiver. Although these technologies bring the resource flexibility of the transceiver to a certain extent, the functionalities required to support network virtualization are missing and their physical resources are not utilized cost-effectively. In this proposal, we first design a mechanism to create a virtual transceiver, by using the slicing or aggregation of the transceiver resources. The proposed mechanism effectively improves the transceiver resource utilization, and greatly decreases the size and cost of the transceiver resource, while it has good scalability. Then, based on this mechanism, we study the multi-dimensional resource provisioning scheme in flexible-grid optical networks, with a special focus on the defragmentation issue and the dynamical provisioning capacity of cross-layer resources. This proposal will build a three-node optical switching system platform to verify and demonstrate the proposed key techniques and principles. This research may be viewed as a generalization of existing research. The applicant and his team have solid background in this topic. Based on the previous research works, the results investigated and developed in this proposal, will improve the traffic's performance, increase the network optical-layer resource utilization, enhance resource cost-effectiveness and finally promote the development and research of the next-generation flexible-grid optical networks.

英文关键词： Flexible-Grid Optical Networks;Virtualizeable Optical Transceiver;Optical Network Virtualization;End-to-end Lightpath Configuration;Resource Provisioning Mechanism