Collaborative Research: NeTS-NBD: Cross-Layer Design and Management of Translucent Optical Networks

合作研究：NeTS-NBD：半透明光网络的跨层设计和管理

• 批准号: 0520060
• 负责人: Maite Brandt-Pearce
• 金额: $ 26.5万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0520060&HistoricalAwards=false
• 关键词: Collaborative; Research; NeTS; NBD; Cross

The increase in our society's dependence on information will push the existing information technology (IT) infrastructure beyond its capability. The actual fibers can handle the load for at least a decade more; the bottleneck is the network nodes, i.e., the electronic switches and routers. Even as there is a general consensus thatopto-electronic (O-E) regeneration within the network is unavoidable at national and continental network scales, there is a push to limit such O-E regeneration. Optical transport and switching provide the advantage of transparency to protocols, bit-rates, modulation formats, etc., thus enabling a smoother evolution path for an infrastructure that will undoubtedly grow from its initially deployed framework. Transparency introduces a design issue that is not well studied or understood at this point, namely, the strong interaction between the physical and higher layers. The problem calls for cross-layer design approaches, which are standard in the wireless community but are largely unexplored in the optical community. This proposal seeks to advance the knowledge in this critical area by bringing together two PIs with very complementary expertise.The proposed effort is to design and analyze fiber transport network management systems for networks that use the more powerful but problematic all-optical switches. The approach is a holistic one, incorporating the degradations in the fibers and switches, and optimizing the dynamic allocation of resources.The research plan includes two major tasks. The first is the optimization of the network management system, which is tackled through power, routing, and wavelength assignment for optical circuits. The second effort is to design the physical network considering the impact the network components and parameters have on the physical layer performance. Real data on large optical switches are available to the PIs and will be used to test and validate the performance predictions and new algorithms.The results of the research affect every aspect of our society that depends on the ever-increasing need for information. It encourages the development of applications that require significant bandwidth. It empowers industry to purchase and control their networking links, thus giving them more bandwidth at a more affordable price. It also stimulates cross-fertilization of ideas from the two fields of networking and communications.Broader Impact: The research enhances the education of the graduate and undergraduate students participating in it. Students from diverse backgrounds are sought. The PIs have a history of selecting students from a broad pool to provide a diverse research environment for the whole group. Research is integrated into undergraduate education via senior thesis projects. The research results will also be incorporated in graduate classes that the PIs teach on optical networking and communications. This will ensure a steady stream of researchers and engineers well versed in cross-layer design issues.

我们社会对信息的依赖性的增加将使现有的信息技术基础设施超出其能力。 实际的光纤可以处理至少十年以上的负载;瓶颈是网络节点，即，电子交换机和路由器。尽管人们普遍认为，在国家和大陆网络规模上，网络内的光电（O-E）再生是不可避免的，但人们仍在努力限制这种O-E再生。光传输和交换提供了对协议、比特率、调制格式等透明的优点，从而使基础设施的演进路径更加平滑，毫无疑问，该基础设施将从其最初部署的框架开始增长。透明性引入了一个设计问题，在这一点上没有得到很好的研究或理解，即物理层和更高层之间的强交互。这个问题需要跨层设计方法，这在无线社区是标准的，但在光学社区基本上是未开发的。该提案旨在通过将两个具有互补专业知识的PI聚集在一起来促进这一关键领域的知识，所提出的努力是为使用功能更强大但存在问题的全光交换机的网络设计和分析光纤传输网络管理系统。 该方法是一种综合考虑光纤和交换机性能退化和资源动态优化配置的方法。 首先是网络管理系统的优化，这是通过光路的功率、路由和波长分配来解决的。第二项工作是考虑网络组件和参数对物理层性能的影响来设计物理网络。 大型光开关的真实的数据可供PI使用，并将用于测试和验证性能预测和新算法。研究结果影响到我们社会的各个方面，这取决于对信息的需求不断增长。它鼓励开发需要大量带宽的应用程序。它使行业能够购买和控制其网络链接，从而以更实惠的价格提供更多的带宽。它还促进了网络和通信两个领域的思想交流。更广泛的影响：该研究加强了参与研究的研究生和本科生的教育。 PI有从广泛的人才库中选择学生的历史，为整个团队提供多样化的研究环境。 研究通过高级论文项目融入本科教育。研究成果也将被纳入研究生课程，PI教授光网络和通信。这将确保精通跨层设计问题的研究人员和工程师源源不断。