NeTS-FIND Future Optical Network Architectures

NeTS-FIND 未来光网络架构

• 批准号: 0626800
• 负责人: Vincent Chan
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-15 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0626800&HistoricalAwards=false
• 关键词: NeTS; FIND; Future; Optical; Network

The intrinsic intellectual merit of this proposed research is the creation of an optimized, heterogeneous optical network architecture, comprising current and future technology building blocks, that realizes the full potential of optical technology and that will be able to support exponentially increasing future bandwidth demands. Two advantages of optical networking technology over present-day networking technology that will enable the envisioned solution are: (i) the ability to offer bit-rate-, format- and protocol-independent services, which is a direct result of optical transparency; and (ii) lower capital and operational expenses in networks, owing to a significant reduction in conventional optical-electronic-optical (OEO) conversions in the network. Since optical devices behave very differently from their electronic counterparts or may not even have electronic analogs at all, it is clear that the optimum optical network architecture (in terms of cost and performance) will not be the same as the present electronic network architecture of the Internet. A key difference between current networks (and their linear extensions) and the optical networks that the principal investigators envision is the time-scale at which network reconfiguration occurs. For the foreseeable future, network reconfiguration in the optical layer will remain slow and quasi-static. However, optimally designed all-optical networks will be dynamic and require reconfiguration on much shorter time-scales. Such architectures will significantly lower the cost per bit for communication and will enable access of high rate services to the masses relatively soon, whereas electronic architectures will continue to serve only high-end users for many years to come. Developing an optimal optical network architecture will involve a restructuring and optimization of the existing network layer structure by: (i) treating architecture, protocols, and the physical layer as a single entity with strongly interacting, but distinct subsystems, and (ii) employing foreseeable technology as well as suggesting revolutionary hardware technology to exploit the benefits of optics wherever possible. The resulting intelligent optical network will be dynamically reconfigurable, and will enable various new applications by seamlessly optimizing network performance for all. Based on a system-wide optimization, the most efficient switching, routing and transport mechanisms will be developed, which will likely include electronic packet switching as an important overlay atop a much higher-speed network. The enabling architectural concepts in this research are: (i) optical flow switching (OFS) and its implications on physical and higher layer architectures, and (ii) impairment aware routing.The broader impact of this research will be felt in broadband network applications and potentially will facilitate major advances in interactive distant learning; telemedicine; instant access to all knowledge and information (virtual libraries); and immersive virtual presence and pervasive, mobile wireless networks. Education and research will be integrated through multidisciplinary environment of this program. MIT will focus on (i) preparing a skilled and diverse workforce, including minorities and women, (ii) generating a curriculum which is research-inspired, but also industry practice-oriented, (iii) integrating engineering, technology, and business to stimulate technology transfer, and (iv) promoting education to the broader community. This program will also actively involve experts from Sycamore Networks and Cisco.

这项研究的内在智力价值是创建一个优化的异构光网络架构，包括当前和未来的技术构建模块，实现光技术的全部潜力，并且能够支持呈指数级增长的未来带宽需求。 与目前的网络技术相比，光网络技术有两个优势可以实现设想的解决方案：(i) 能够提供与比特率、格式和协议无关的服务，这是光透明度的直接结果； (ii) 由于网络中传统光电光（OEO）转换的显着减少，网络的资本和运营支出降低。由于光学设备的行为与其电子对应物非常不同，或者甚至可能根本没有电子类似物，因此很明显，最佳的光网络架构（在成本和性能方面）将与当前的电子网络架构不同。互联网。当前网络（及其线性扩展）与主要研究人员设想的光网络之间的一个关键区别是网络重新配置发生的时间尺度。在可预见的未来，光层的网络重构将保持缓慢且准静态的状态。 然而，优化设计的全光网络将是动态的，并且需要在更短的时间尺度上重新配置。这种架构将显着降低每比特的通信成本，并使大众能够相对较快地获得高速率服务，而电子架构将在未来许多年中继续只为高端用户提供服务。 开发最佳光网络架构将涉及对现有网络层结构的重组和优化，方法是：（i）将架构、协议和物理层视为具有强相互作用但不同子系统的单个实体，以及（ii）采用可预见的技术技术并提出革命性的硬件技术，以尽可能利用光学的优势。由此产生的智能光网络将是动态可重新配置的，并将通过无缝优化所有人的网络性能来实现各种新应用。基于系统范围的优化，将开发最有效的交换、路由和传输机制，其中可能包括电子分组交换作为高速网络之上的重要覆盖层。本研究中的支持架构概念包括：(i) 光流交换 (OFS) 及其对物理层和更高层架构的影响，以及 (ii) 损伤感知路由。这项研究的更广泛影响将体现在宽带网络应用和可能会促进交互式远程学习的重大进步；远程医疗；即时访问所有知识和信息（虚拟图书馆）；沉浸式虚拟存在和无处不在的移动无线网络。教育和研究将通过该计划的多学科环境进行整合。麻省理工学院将重点关注（i）培养一支熟练且多元化的劳动力队伍，包括少数族裔和女性，（ii）制定以研究为灵感，但又以行业实践为导向的课程，（iii）整合工程、技术和商业，以刺激技术转让，以及 (iv) 向更广泛的社区推广教育。 该计划还将积极邀请来自 Sycamore Networks 和 Cisco 的专家参与。