NeTS-NBD: Metro and Access Rings Integrated Network (MARIN)

NeTS-NBD：城域和接入环综合网络（MARIN）

• 批准号: 0520291
• 负责人: Leonid Kazovsky
• 金额: $ 49万
• 依托单位: Stanford University
• 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: 2005-10-01 至 2009-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0520291&HistoricalAwards=false
• 关键词: NeTS; NBD; Metro; Access; Rings

Recently Internet traffic has almost doubled every year. This continued exponential growth is placing increasing strains on the existing telecommunication infrastructure, which will need to be relieved in order to accommodate future capacity requirements. Today the main bottleneck is at the level of the access network, which resides between the individual subscribers and the central office (CO) operated by the network carrier. The present access services are based on an installed copper-line infrastructure, exhibiting fundamental bandwidth (Mb/s data rate to each subscriber) and distance limitations. To satisfy the insatiable bandwidth demands for emerging digital services, optical access networks are being standardized and deployed, in which each end user can use a much larger bandwidth (hundreds of Mb/s to Gb/s). Recent developments in optical technologies have made the realization of the optical access network feasible and cost-effective for wide deployment.Once the broadband optical access network prevails, the aggregate demand will overwhelm the bandwidth provisioning of the current network infrastructure based on Internet protocol (IP) routers. Metropolitan area networks (MAN) connect the Internet backbone and local access points, typically spanning tens of miles. Traditionally, SONET has been deployed to provide circuit links for the voice traffic. Due to the exponentially increasing data traffic generated by Internet applications, many research and standardization efforts are aiming to provide alternate high-capacity MAN architecture and technology. (e.g. RPR, Metro Ethernet, etc.) To facilitate the evolution of the current network toward the next generation optical networks, the principal investigator (PI) will investigate the novel MARIN (Metro and Access Rings Integrated Network) architecture. MARIN is an integrated network that fuses the access networks and the MAN, and makes use of wavelength division multiplexing (WDM) ring technology and wavelength conversion for removing the current and anticipated limitations of both access network and MAN. It will have the following important characteristics: (i) WDM ring technology integrating MAN and access network, providing high capacity; (ii) Highly scalable as the number of users grows and the data rate increases; (iii) Suitable for smooth transition from legacy networks to the future optical networks; (iv) High-speed optical routing based on Optical Burst Switching (OBS); and (v) Exploiting wavelength conversion to facilitate routing for high speed and low latency. The PI will investigate in detail the feasibility of the proposed MARIN architecture. The PI will perform investigations in the areas of access networks, MAN, and OBS with advanced wavelength conversion, which will become more integrated as time progresses. Broader Impact: This work will have a broader impact beyond the narrow achievement of the technical goals. If some of the goals are reached, the MARIN architecture could influence the way future communication networks are designed. Hence, this work could have a sizeable economic impact. In addition, by improving the performance of communication systems, this work could facilitate the way people communicate via Internet and other means, which is currently revolutionizing the way people interact and work.

最近，互联网流量几乎每年翻一番。这种持续的指数增长对现有的电信基础设施造成越来越大的压力，需要缓解这种压力，以满足未来的能力需求。今天，主要的瓶颈是在接入网络的层面，它位于个人用户和由网络运营商运营的中心局（CO）之间。目前的接入服务是基于安装铜线基础设施，表现出基本的带宽（Mb/s的数据速率，每个用户）和距离的限制。为了满足新兴数字服务的永不满足的带宽需求，正在标准化和部署光接入网络，其中每个最终用户可以使用更大的带宽（数百Mb/s到Gb/s）。随着光技术的发展，宽带光接入网的实现变得可行且经济，一旦宽带光接入网成为主流，其总的需求将超过目前基于IP路由器的网络基础设施的带宽供应。城域网（MAN）连接互联网主干和本地接入点，通常跨越数十英里。传统上，部署SONET是为了为语音流量提供电路链路。由于互联网应用产生的数据流量呈指数级增长，许多研究和标准化工作的目标是提供替代的高容量城域网架构和技术。(e.g. RPR、城域以太网等）为了促进当前网络向下一代光网络的演进，首席研究员（PI）将研究新颖的MARIN（城域和接入环集成网络）架构。MARIN是一个融合了接入网和城域网的综合网络，利用波分复用（WDM）环网技术和波长转换技术，消除了接入网和城域网目前和预期的局限性。它将具有以下重要特点： (i)WDM环网技术将城域网和接入网融合在一起，提供高容量; (ii)随着用户数量的增长和数据速率的增加，可高度扩展; (iii)适合从传统网络到未来光网络的平滑过渡; (iv)基于光突发交换（OBS）的高速光路由;以及 (v)利用波长转换来促进高速和低延迟的路由。 PI将详细研究拟议MARIN架构的可行性。PI将在接入网络、MAN和具有高级波长转换的OBS领域进行调查，随着时间的推移，这些领域将变得更加集成。更广泛的影响：这项工作将产生更广泛的影响，超越狭隘的技术目标的实现。如果其中一些目标得以实现，MARIN架构可能会影响未来通信网络的设计方式。因此，这项工作可能会产生相当大的经济影响。此外，通过改善通信系统的性能，这项工作可以促进人们通过互联网和其他手段进行通信的方式，这正在彻底改变人们的互动和工作方式。